leidos

The Homeland Sector within Leidos is seeking a Reacts Developer with strong systems, software, cloud, and Agile experience to support a complex program to provide Agile development and operations and maintenance for critical systems on a mission-critical program supporting the Passenger Systems Program Directorate (PSPD) within Customs and Border Protection (CBP). PSPD supports the Department of Homeland Security (DHS) and CBP critical missions, specifically screening and processing travelers at the ports of entry (POEs) into the United States. In this hands-on position, you will work collaboratively to architect, design, build, deliver, and enhance highly available, scalable, real-time systems. You will exercise your judgment in determining and recommending the best designs based on customer business objectives, timelines, and other resource constraints. You will participate in and/or direct major deliverable of projects through all aspects of the software development life cycle including scope and work estimation, architecture and design, coding, and unit testing. **This position REQUIRES the candidate to be in Ashburn, VA, twice a week** Basic Qualifications: BS/BA degree and 10 years of directly related experience or Master’s with 8 years of directly related experience; OR 4 years of directly related experience in lieu of degree Must be able to maintain and obtain a CBP Background Investigation prior to start Must be a US citizen Experience with Agile Scrum methodology and working in a SecDevOps environment Experience working with containerized applications preferably utilizing Konvoy 3+ years’ experience developing cloud ready applications and/or experience migrating applications to the cloud.  2+ years of experience in one of the following: JAVA, JSF, JavaScript, Spring, Automated test tools such as Selenium. Minimum 2 years of experience in at least 2 of the following: React, Angular, Redux, HTML, CSS, JSX, bootstrap, ES6, Redux, JWT, JSON, Babel, Webpack, Axios, NPM, Node. Proficient in JAVA, JavaScript, including DOM manipulation and the JavaScript object model Thorough understanding of React and Angular and its core principles 2+ years experience with Microservices/RESTful APIs Expertise with Axios framework to work with rest services. Hands on experience with HTML/CSS/Bootstrap Hands on experience of modern authorization mechanisms, such as JSON Web Token (JWT) Preferred Qualifications: Hands on working experience with Redux Store for session management. Hands on experience with more current specifications of EcmaScript (ES6) Experience with common front-end development tools such as Babel, Webpack, NPM, Node etc. A knack for benchmarking and optimization is plus. AWS Developer or Solutions Architect certifications Active Full CBP BI Experience with Google Cloud If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 18, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $107,900.00 - $195,050.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos is seeking a motivated, detailed-oriented problem-solver to join our modeling and simulation team as an Aerospace Modeling and Simulation Engineer in Dayton, OH. You will play a valuable part in developing and testing models of aerospace systems, to include air-launched weapons; ballistic missile systems; avionics; hypersonic vehicles; and guidance, navigation, and controls across a wide range of projects and programs. Primary Responsibilities Develop, integrate, and test models of aerospace systems based on provided information, research, and engineering principles. Document model performance against requirements. Document algorithm design. Work collaboratively with an engineering team comprised of internal and external team members. Interact with external stakeholders to define requirements and perform model demonstrations. ​Basic Qualifications: Candidate must possess a Bachelor’s Degree in Aerospace Engineering, Mechanical Engineering, or equivalent degree from an ABET-accredited university Candidate must have 4 or more years of experience Experience with 3DOF/6DOF flight models Experience in MATLAB/Simulink Experience with system level requirements Detailed understanding of the systems engineering process Demonstrates solid understanding and intuition of the functionality and interdependency of aerospace systems Strong written and verbal communication skills and attention to detail to communicate clearly with internal and external stakeholders Organizational skills to document work and interface with team members to ensure flow of information Candidate must be a US Citizen and possess a Secret Clearance and meet the eligibility to obtain (and maintain) a TS/SCI Clearance. Candidate must be local to or willing to relocate to the Dayton, OH area. Preferred Qualifications: Experience in C++ or Python Experience integrating and testing GNC algorithms Experience with ballistic missiles, air-launched missiles, or hypersonic vehicles If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 18, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $87,100.00 - $157,450.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos has a new and exciting opportunity for a Senior Systems Engineer in our Intel Sector.  Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.  Join us and make a difference in National Security!   Job Summary: Our LOE program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact. Click here to learn more about how this program “Delivers Mission Success!” Seeking a motivated Senior Systems Engineer to support the exciting Analysis & Mitigations mission to assist in defining and implementing a system architecture for an Agentic Knowledge Management System using an agentic framework to perform automated knowledge extraction.  The engineer will work closely with the project lead to manage system integration, develop and maintain deployment strategies and processes, ensure compliance, perform system testing, validation, and life cycle sustainment.  Additionally, participate in the development and maintenance of technical plans, milestones, and code reviews. Job Responsibilities/Qualifications: Mission Focus: Collaborate closely with project leadership to manage system integration, develop and maintain deployment strategies and processes to ensure smooth delivery of product.  Coordinate efforts across the team for effective collaboration and project delivery.  Ensure compliance with system standards and best practices through system testing, validation, and life cycle sustainment. Develop and maintain technical plans, milestones, and code reviews.Technical Proficiency: Coordinate with relevant stakeholders to ensure seamless component integration. Decompose project requirements into actionable technical tasks and specifications for software engineers, data scientists, and UX designers. Maintain comprehensive documentation of system architecture, integration, and deployment. Implement and enforce system standards, protocols, and best practices. Conduct regular security, performance, and quality audits for compliance.Qualifications: Bachelor's degree plus nine (9)years of relevant experience or equivalent. Understanding of Agile and other constructs, and CI/CD practicesSecurity Clearance: Active TS/SCI with Polygraph required to be considered for this role.Desirable Skills: Knowledge of Agentic frameworks (langgraph) and customer dataflows and sources.At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today! Careers.leidos.com CONMD If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 18, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $107,900.00 - $195,050.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

More About the Role:NGEN is the largest IT services program for the Navy. Under the Service Management, Integration, and Transport (SMIT) portion of NGEN, the Leidos team will deliver the core backbone of the Navy-Marine Corps Intranet, including cybersecurity services, network operations, service desk, and data transport. Ultimately, Leidos will support the Navy in unifying its shore-based networks and data management to improve capability and service while also saving significant dollars by focusing efforts under one enterprise network. At Leidos, we know the most talented and diverse IT and Engineering professionals will always have a multitude of career choices; your time at Leidos will be a wise investment in your career and in yourself. Leidos is seeking a Mid-level Desktop Support Technician to support a government site at Fallon, NV; as one of the key members of the Field Services team. The candidate will be responsible for direct desk-side support to the customer, troubleshooting and repairing IT devices. The work location for this position will be at a government site and will require the ability to:•Must be able to lift and carry 50 lbs. for up to a 100 feet at a time; must be able to lift 25 lbs. vertically using ladders.•Must be able to work in confined spaces, such as raised floors or communications closets; must be able to work in noisy environments, such as data centers and operations centers; must be able to stand or sit for 8 hours at a time.•Must be able to utilize basic hand tools such as screwdrivers and wrenches while rack mounting active and passive equipment using small screws and brackets.•Must have normal color vision to identify different colors of wires and cables; must have correctable vision to 20/20 or better so you can see objects and information displayed in schematics, test equipment, and computer monitors; must have depth perception to be able to judge distance between objects to work safely on ladders and in confined spaces; must be able to use and read digital test equipment such as OTDR (optical time-domain reflectometer).•Must be able to drive personal or corporate vehicle (depending on availability) to different locations to work on projects and troubleshoot issues; valid state license required.•Must be available to work an 8 hour shift between 6 AM and 6 PM and able to work from different sites within the Fallon group. What You'll Get to Do:•Assist junior technicians in resolving complex issues.•Manage the resolution of customer tickets according to established Service Level Requirements (SLRs).•Serve as backup to the Site Operations Lead. You'll Bring These Qualifications:•Must be a US Citizen and possess a DoD Secret Clearance.•HS diploma with 4+ years of prior relevant experience, additional related education or certifications may be considered in lieu of experience.•Valid DoD 8570 IAT Level II: Security+ or higher Certification. •Must demonstrated expertise in IT Enterprise Operations. •Excellent customer service skills. •Excellent oral and written communication skills. These Qualifications Would be Nice to Have:•Organized and detail-oriented.•Strong leadership skills.•Self-motivated/ self-directing.•Strong collaboration, prioritization, and adaptability skills required. Relationship building.•Ability to manage and prioritize own work, and that of their team.•Independent decision making.•Analytical thinking; thinking out of the box.•Ability to effectively communicate with all organizational levels (SME to Senior Management).•Ability to analyze problems at various levels (e.g. detail level, overall organizational impact, etc.). Pay Range: $26.00 - $30.00/hourly rate. NGEN If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 18, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range -The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos has a new and exciting opportunity for a Mid-Level Technical Writer in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!   This position is based near Columbia, Maryland, with alternative duty locations in San Diego, California, Englewood, Colorado, or Huntsville, Alabama. Relocation assistance may be available for qualified candidates. Job Summary Leidos is seeking a Mid-Level Technical Writer to join a high-impact, multi-agency program serving the United States Space Force (USSF) / Space Systems Command (SSC), the United States Air Force (USAF), and other critical mission stakeholders. The selected individual will play key role in enhancing, testing, and deploying a large-scale Satellite Communications (SATCOM) system to an existing infrastructure. The ideal candidate brings deep expertise in public key infrastructure (PKI) and key management, excels at complex problem solving, and has a strong record of delivering results as part of a high-performing team in a fast-paced Agile Development environment. This position offers a unique opportunity to enhance the resilience and cybersecurity of mission-critical communications that protect our nation. Primary Responsibilities: Prepare, author, edit, and proof technical documents and program deliverables (e.g., system manuals, user guides, training materials, installation guides, proposals, reports) in accordance with the SOW and CDRLs. Ensure all documents conform to program standards, Data Item Description (DID) requirements, and applicable templates. Create and maintain document templates using styles and formats in MS Word. Work closely with engineers, developers, testers, Release Train Engineers, users, and other stakeholders to gather requirements, define content, and capture data and media for documentation. Perform quality assurance reviews on all contractual documentation and deliverables, ensuring comments and customer feedback are fully addressed. Format, review, and submit contract deliverables and reports, ensuring proper configuration management (CM) and version control in coordination with Data Management staff. Oversee the collection, organization, editing, and revision of documentation supporting complex computer systems and networks. Apply and help guide implementation of CMMI Maturity Level 3 best practices for documentation and quality. Manage multiple documentation efforts simultaneously with strong attention to detail, quality, and on-time task completion. Basic Qualifications: Bachelor’s Degree in a Technical, Writing, or related discipline and at least 8 years of relevant experience. Additional experience may be substituted for a degree. Must have at least 5 years of experience as a full time dedicated Technical Writer on a large, complex technical program, creating, editing, and producing extensive documents, reports, CDRLs, and briefings for diverse audiences, including senior leadership. Must have expert-level proficiency with advanced MS Word formatting and editing features, with extensive experience developing, managing, and refining large, complex technical documents and publications. Must have direct experience working with system engineers, software engineers, and program management to translate technical information into clear, concise documentation including user manuals and reports. Must demonstrate excellent grammar skills (including punctuation, spelling, and usage). Must be an exceptional communicator, both verbally and in writing, able to convey information clearly and concisely, build rapport effectively, and understand, interpret, and explain highly technical concepts to diverse audiences. Must have experience planning, prioritizing, and managing multiple tasks in a dynamic, fast-paced environment. Must be proficient in Microsoft Word, Excel, and PowerPoint. Must be capable of performing high-quality work both individually and as part of a team. Must be a self-motivated problem solver who proactively takes initiative when issues arise. Clearance Required: Must have TS/SCI with Polygraph. Preferred Qualifications: Master’s Degree in a Technical, Writing, or related discipline. Experience working with or in military Satellite Communications (SATCOM) organizations such as United States Air Force (USAF), United States Space Force (USSF), or another Agency. Experience working with Public Key Infrastructure (PKI)/ key management programs and technologies. Experience working on or with multi-disciplinary technical development teams. Experience working on an agile program and team. Extensive experience on a system/software development program compiling, editing, and publishing CDRL documentation. Sound understanding of CMMI ML3 best practices, DID formats, and agile methodologies. At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – Apply today! If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 18, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $82,550.00 - $149,225.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos is seeking an experienced Civil Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will apply deep engineering expertise to reconstruct facility layouts, operational workflows, and supporting infrastructure associated with chemical, biological, radiological, and nuclear (CBRN) industrial processes. Leveraging a multidisciplinary approach, you will evaluate facility capabilities, identify vulnerabilities, and assess potential threat vectors to support high-priority mission objectives. This position requires a highly analytical engineer who can develop sound technical assessments in situations where complete information is inherently unavailable. The ideal candidate combines creativity, intellectual curiosity, and engineering rigor with exceptional attention to detail. As a senior member of an interdisciplinary team of government and contractor professionals, you will provide technical leadership and subject matter expertise in a fast-paced, mission-focused environment within a government facility. Primary ResponsibilitiesReverse Engineering & CharacterizationAnalyze and characterize complex industrial processes, equipment configurations, and facility designs to determine functional attributes, operational capabilities, and mission relevance. Subterranean & Hardened Facility AnalysisEvaluate the structural design, geological overburden, and survivability of underground facilities (UGFs) and deeply buried hardened structures. 3D Modeling & SimulationUtilize advanced CAD and engineering simulation software to develop accurate 3D models of facilities, underground structures, floor plans, utility networks, and supporting infrastructure. Vulnerability & Resilience AssessmentsConduct detailed structural and functional assessments to identify systemic weaknesses, single points of failure, and the operational resilience of critical infrastructure against a range of threat vectors. Workflow & Infrastructure AnalysisAssess supporting infrastructure, operational workflows, and facility systems, including specialized HVAC, power distribution, utility networks, and structural integrity considerations. Technical Reporting & BriefingDevelop comprehensive engineering assessments, reports, and technical products in accordance with Intelligence Community standards. Present findings and recommendations to senior government and Department of Defense stakeholders. Technical LeadershipServe as a recognized subject matter expert within your technical domain, providing engineering insight, mentorship, and guidance to multidisciplinary teams supporting mission requirements. Required Skills, Education, Experience, and ClearanceSecurity Clearance: Must possess an active and in-scope TS/SCI clearance and be able to maintain it. Must be a U.S. Citizen. Additionally, will be expected to successfully pass a polygraph. Demonstrated expertise in engineering principles, theories, and concepts, with the ability to apply them across a broad range of complex programs and mission challenges.Bachelor's degree with 12+ years of relevant experience, or a Master's degree with 10+ years of relevant experience.Relevant experience includes facility analysis, infrastructure vulnerability assessments, and structural engineering within commercial, Department of Defense, or Intelligence Community environments.Industrial & Facility Focus: Proven experience analyzing chemical, nuclear, or biological industrial processes and their associated facility footprints, including both above-ground facilities and subterranean environments.MEP Systems Knowledge: Strong multidisciplinary understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment, filtration, and backup power systems.Preferred QualificationsWeapons Effects & Survivability: Experience or training in blast mitigation, weapons effects, or structural hardening principles.Geotechnical Engineering: Knowledge of rock mechanics, tunneling engineering, or geomechanics as applied to deeply buried underground facilities (UGFs).BIM Expertise: Experience with Autodesk Revit or other Building Information Modeling (BIM) platforms for multidisciplinary coordination, MEP integration, and advanced facility visualization.Advanced Simulation: Experience utilizing BIM data to support engineering simulations, blast effects analysis, or vulnerability assessment workflows.Infrastructure Modeling: Experience with VENTSIM, ETAP, or similar infrastructure modeling and simulation software.All-Source Information Evaluation: Demonstrated experience researching, assessing, and synthesizing diverse intelligence and technical sources—including classified intelligence, open-source information, and grey literature such as foreign technical journals, patents, and equipment catalogs—to support facility and infrastructure characterization.Professional Engineer (PE) certification.Military or defense-related experience.If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $116,350.00 - $210,325.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Principal Civil Engineer (TS/SCI Required)Location: Reston, VA Leidos is seeking an accomplished Principal Civil Engineer to support high-priority national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will leverage extensive engineering expertise to reconstruct facility layouts, operational workflows, and supporting infrastructure associated with chemical, biological, radiological, and nuclear (CBRN) industrial processes. Through detailed analysis of facility design, operations, and infrastructure, you will identify vulnerabilities, assess potential threat vectors, and provide critical engineering insights that support mission planning and decision-making. This position requires a highly experienced engineer who can develop sound technical assessments in environments where complete information is rarely available. The ideal candidate combines creativity, engineering rigor, and exceptional analytical skills with a meticulous attention to detail. As a senior technical leader, you will collaborate with interdisciplinary teams of government and contractor professionals while serving as a trusted subject matter expert in support of complex intelligence and defense missions. Work is performed in a fast-paced, mission-focused environment within a government facility. Primary ResponsibilitiesReverse Engineering & CharacterizationAnalyze and characterize complex industrial processes, equipment configurations, and facility designs to determine functional attributes, operational capabilities, and mission relevance. Subterranean & Hardened Facility AnalysisEvaluate the structural design, geological overburden, and survivability of underground facilities (UGFs) and deeply buried hardened structures. 3D Modeling & SimulationUtilize advanced CAD and engineering simulation tools to develop accurate 3D models of facilities, underground structures, floor plans, utility systems, and supporting infrastructure. Vulnerability & Resilience AssessmentsConduct detailed structural and functional analyses to identify systemic weaknesses, single points of failure, and assess the resilience of critical infrastructure against a range of threat vectors. Workflow & Infrastructure AnalysisEvaluate facility support systems and operational workflows, including specialized HVAC systems, power distribution networks, utility infrastructure, and structural integrity considerations. Technical Reporting & BriefingDevelop comprehensive engineering assessments, reports, and technical products in accordance with Intelligence Community standards. Present findings, technical analyses, and recommendations to senior government and Department of Defense stakeholders. Subject Matter Expertise & Technical LeadershipServe as a recognized subject matter expert within your technical domain, providing authoritative engineering guidance and supporting multidisciplinary teams addressing complex mission challenges. Required Basic QualificationsSecurity Clearance: Active TS/SCI clearance required. Must be a U.S. Citizen. Demonstrated expertise in engineering principles, theories, concepts, and their application across a broad range of highly complex programs and mission requirements. Master's degree with 15+ years of relevant experience, or a Doctorate with 13+ years of relevant experience. Relevant experience includes facility analysis, infrastructure vulnerability assessments, and structural engineering within commercial, Department of Defense, or Intelligence Community environments. Industrial & Facility Focus: Proven experience analyzing chemical, nuclear, or biological industrial processes and their associated facility footprints, including both above-ground facilities and subterranean environments. MEP Systems Knowledge: Strong multidisciplinary understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment, filtration, and backup power systems. Preferred QualificationsWeapons Effects & Survivability: Experience or training in blast mitigation, weapons effects, or structural hardening principles. Geotechnical Engineering: Knowledge of rock mechanics, tunneling engineering, or geomechanics as applied to the analysis of deeply buried underground facilities (UGFs). BIM Expertise: Experience with Autodesk Revit or other Building Information Modeling (BIM) platforms for multidisciplinary coordination, MEP integration, and advanced facility visualization. Advanced Simulation: Experience utilizing BIM data to support engineering simulations, blast effects analysis, or vulnerability assessment workflows. Infrastructure Modeling: Experience with VENTSIM, ETAP, or similar infrastructure modeling and simulation software. All-Source Information Evaluation: Demonstrated experience researching, assessing, and synthesizing diverse intelligence and technical sources, including classified intelligence, open-source information, and grey literature such as foreign technical journals, patents, and equipment catalogs, to support facility and infrastructure characterization. Professional Engineer (PE) certification. Military or defense-related experience. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $139,100.00 - $251,450.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos is hiring licensed behavioral health professionals to join our Military and Family Life Counselor (MFLC) Child and Youth Behavioral team to support a school assignment at China Lake in CA. This is a 9-month school calendar position that will reflect the school's calendar that you would support. This is for a future position for the 2026-2027 academic year. Join the mission to support U.S. military service members and their families as they work through important military life adjustments while serving their country. The Child and Youth Behavioral Military and Family Life Counselor (CYB-MFLC) position offers a unique opportunity to serve a vital role, in providing non-medical support, which includes counseling, consultation, and outreach, to eligible faculty, staff, parents, children, and youth. Non-medical counseling is preventive in nature and aims to address and provide solution focused approaches to issues before they become greater challenges. Military children face unique emotional and environmental challenges due to the stress of military life. This is an opportunity for you to reach them where and when you are most needed. CYB-MFLC responsibilities include: Work at school(s) that are populated by military youth and teens. Observe, participate, and engage in activities with youth and/or teens; provide coaching, guidance, and support to staff and parents; and model behavior management techniques for staff and parents. Offer presentations to address social skills development and social emotional learning that is crucial for youth and teenage development. Promote creativity and positivity through approved materials. Build rapport with parents and families by attending installation and community events. Help with transition adjustments, such as a new school and a new home. Participate in regular in-service training or other contract activities as assigned. Communicate information regarding trends and issues at assigned installation to Team Leads. CYB-MFLC will also benefit from: No insurance to file. No progress notes required. No treatment plans to develop. iPad provided for easy digital reporting, with no PII or PHI. Paid federal holidays. Free and unlimited behavioral healthcare training. Reimbursement for job-related license renewal fees. Eligibility to participate in 401K retirement plan. Centralized support through a Counseling Center of Excellence that provides best practices, expert speakers, and state-of-the-art resources. Additional Job Duties May Include: Responding to emergent situations in any physical location on a military installation Traversing long distances to both indoor and outdoor locations, to maneuver through rugged, outdoor, or uneven locations (ascend/descend), and work in outdoor weather. Travelling to locations outside of a military base in a variety of physical environments. Due to the nature of working on military installations or related worksites, counselors may need to comply with various site-specific requirements to work at designated locations. Environment: At the direction of the Department of Defense, duties are performed in multiple indoor locations (approximately 60%) and outdoor locations (approximately 40%). The indoor locations are located within a school setting controlled by the state and/or Department of Defense Education Activity. The outdoor locations frequently involve traversing over uneven grassy, gravel, and/or dirt areas, ascending/descending stairs, and exposure to the weather. Licensure Portability Great news! In accordance with the recent National Defense Authorization Act (NDAA), licensed Military and Family Life Counselors may provide non-medical counseling services to military families at any location in a U.S. state, the District of Columbia, or a territory or possession of the United States, regardless of which state the counselor is licensed in. Within the scope of the MFLC program, a counselor may hold any independent and clinical license recognized by the Secretary of Defense as an appropriate license for the provision of non-medical counseling services. Minimum Requirements: A master’s degree or higher in the Behavioral Health Professions (MS/MSW/MA/PhD). Licensure to practice at the independent practice level (LCSW, MFT, LPCC, Psychologist) in the state where you provide services. Must be a U.S. citizen. Must be able to pass a basic background check for employment, a Child National Agency Check, and Inquiries (NACI/CNACI) clearance, commonly called a Public Trust clearance. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 18, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $59,150.00 - $106,925.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

General program information and/or position overview. This position is for a .NET Developer who will support implementation of Okta authentication for multiple applications and systems on the ESA V program. ESA V is an IT applications and infrastructure services program supporting several customers within the Department of Justice (DOJ), including the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). The program provides a range of IT services, including software application support, enterprise infrastructure support, service desk, ITSM, deskside support, workstation engineering and maintenance, telecommunications and mobility engineering services, managed print services, Active Directory services, and video conferencing.  The program has a DevOps team which provides software development and operations and maintenance support for a variety of ATF software systems and custom software applications; these needs are growing, and we are expanding this team. The successful candidate will be required to coordinate system requirements with technical resources, project managers, and customers at various levels. Responsibilities will include developing solutions to modify systems and applications to use Okta authentication and will require depth of technical knowledge and understanding through discussions with the technical team. This position is 100% remote and requires working in a fast-paced, dynamic environment; this position also offers the ability for significant virtual support. Excellent communication skills are required to interact with the customer and program team. This position is contingent on receipt of required clearance from the Government customer. Required Clearance: Candidate selected will be subject to a Government Public Trust security investigation and must meet eligibility requirements for access to the customer’s information. US Citizenship is required. Current clearance is not required, but selected individual cannot start the assignment until the required security clearance is granted by the customer. Primary Responsibilities Develop and maintain software applications using Agile software development techniques Consult with the business process owners, customers, users and constituents to develop and analyze customer requirements Implement software application migration from current ADFS Identity Access Management (IDaM) to Okta Perform application testing Create and maintain application documentation, including migration plans, implementation plans, test plans, and user story updates. Leverage DevOps tool stack to build, inspect, deploy and test the applications. Collaborate with members of project teams to ensure successful, technically sound projects which are completed on time and on budget. Required Qualifications Bachelor's degree in computer science or similar field with 8+ years of related experience. High school diploma with an additional 4+ years’ experience may be considered in lieu of a degree. Agile Software Development Experience Microsoft .Net technologies C#, ASP.NET, VB.NET, ADO.NET, Web Services, and Windows Communication Foundation WCF Software Development Experience with HTML & CSS Experience with Web Services & Frameworks including REST and SOAP Experience with JavaScript Object Notation (JSON), JavaScript frameworks like Node.js, React or Angular Experience with DB Query Languages including Oracle PL/SQL and Microsoft T/SQL RedHat Enterprise Linux (RHEL) Experience Experience with API Testing tools including SoapUI, Postman and JMeter Experience with Relational Database Microsoft SQL Server or higher Experience with XML technologies Experience integrating with IDAM systems using SAML / XACML/SPML/SSO Excellent communication and teamwork skills Customer interface experience Preferred Qualifications Experience with Identity and Access Management (IdAM) systems and processes, particularly with Okta Integration Experience with Amazon Web Services (AWS) Technologies Experience with Software development tools such as GitLab and Jenkins Experience with Docker, Kubernetes and OpenShift Experience with software scanning tools such as SonarQube and Tenable, and experience fixing Security Scan findings Experience with Integrated Development Environments (IDEs) such as Eclipse, JDeveloper and VS AppMod If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $92,300.00 - $166,850.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Opportunity overview: The Intel Sector at Leidos currently has an opening for a Research Scientist to work in Fort Belvoir, VA. This is an exciting opportunity to use your experience to support the Defense Threat Reduction Agency's (DTRA) Environmental Data Enterprise (EDE). In this mission, we support the environmental modeling activities of DTRA, DoW, international partners, and private industry, with a focus on atmospheric transport and dispersion (ATD) modeling. This is a full-time remote opportunity. Primary responsibilities: The successful candidate will be a subject-matter expert in atmospheric science or meteorology and will take part in research and development efforts to enhance our numerical weather prediction (NWP) and ATD capabilities. The candidate will apply their expertise by using cutting-edge artificial intelligence and machine learning techniques and best software development practices to improve current capabilities and create new state of the art techniques for the evaluation and use of environmental data. This role is pivotal in designing, developing, and deploying next-generation environmental modeling systems that are crucial for national security. Key initiatives include: AI-Driven Model Development: Design, develop, and implement novel AI/ML methods for creating, assessing, and modifying vast amounts of meteorological data. Advanced R&D: Conduct research on improving meteorological model inputs (e.g., planetary boundary layer, vertical mixing, ensemble forecasting) for ATD models using AI techniques to increase accuracy and efficiency. Model Validation: Participate in research on best practices to implement and integrate verification and validation methods for NWP models for application within the ATD environment. System & Data Integration: Explore and design new processes to assist in the intelligent selection of meteorological data based on defined Chemical, Biological, Radiological, Nuclear, and high Explosive (CBRNE) scenarios. Data Pipeline Management: Support the ingestion, quality checking, parsing, and storage of on-demand environmental data, including ocean, surface, and upper-air observations. Software Development: Extend, improve, and develop software that bridges the gap between research and operations, and assist in the integration of software into DoW tools. Operational Support: Provide subject matter expertise and technical assistance on the EDE system, including monitoring system status and recommending software or hardware enhancements to streamline operations. Basic Qualifications: Educational Background: Master's degree and 6 years experience or a Ph.D. and 3 years experience in Atmospheric Science, Meteorology, Data Science, Computer Science, or a related physical sciences or engineering field. Security Clearance: Ability to obtain and maintain a DoW security clearance. Must be a U.S. Citizen. Technical Expertise: Proven experience in developing and applying Artificial Intelligence and Machine Learning (AI/ML) models to complex scientific problems. Strong background in numerical weather prediction (NWP), atmospheric modeling, or a related geophysical field. Proficiency in programming languages such as Python, R, or Java, with experience using scientific computing libraries (e.g., NumPy, SciPy, Pandas) and ML frameworks (e.g., TensorFlow, PyTorch, Scikit-learn). Experience handling and processing large scientific data formats like NetCDF, HDF5, and GRIB. Familiarity with data assimilation techniques and ensemble forecasting methods. Problem-Solving: Strong analytical and problem-solving skills, with a demonstrated ability to conduct independent research and develop innovative solutions. Preferred Qualifications: Experience with atmospheric transport and dispersion (ATD) models (e.g., HPAC, SCIPUFF). Familiarity with DoD cybersecurity practices and information assurance standards. Experience working in a Linux/Unix environment. Knowledge of space weather and its impact on terrestrial systems. Experience with deploying and maintaining operational scientific models or software. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $107,900.00 - $195,050.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Principal Mechanical Engineer (TS/SCI Required)Location: Reston, VA Leidos is seeking an experienced Principal Mechanical Engineer to support high-priority national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will leverage extensive engineering expertise to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine functional capabilities and mission relevance. You will evaluate facility systems, model critical infrastructure, identify vulnerabilities, and provide technical insights that support complex intelligence and defense initiatives. This position requires a highly experienced engineer who can develop sound technical assessments in situations where complete information is rarely available. The ideal candidate combines creativity, engineering rigor, and exceptional analytical skills with meticulous attention to detail. As a senior technical leader, you will work alongside interdisciplinary teams of government and contractor professionals while serving as a recognized subject matter expert in support of critical mission objectives. Work is performed in a fast-paced, mission-focused environment within a government facility. Primary ResponsibilitiesReverse Engineering & Facility CharacterizationAnalyze and characterize the physical and functional attributes of facility layouts, building architecture, and operational workflows within denied-access environments to determine facility purpose, capability, and operational capacity. Vulnerability AssessmentsEvaluate facility and infrastructure designs to identify security vulnerabilities, single points of failure, operational bottlenecks, and potential mission impacts. 3D Modeling & SimulationDevelop high-fidelity 3D models and conduct engineering simulations to replicate facility operations, workflow efficiencies, and structural or mechanical limitations. Infrastructure AnalysisApply multidisciplinary engineering expertise to assess supporting facility systems, with a primary emphasis on Mechanical, Electrical, and Plumbing (MEP) integration and functionality within complex facilities. Technical Documentation & ReportingTranslate field-collected data, intelligence information, and engineering assessments into comprehensive technical reports, CAD/BIM products, and simulation-based analyses for Department of Defense stakeholders. Research & DevelopmentLead or contribute to customer-approved research and development initiatives, independently or as part of a multidisciplinary team, to advance analytical methodologies, modeling capabilities, and mission solutions. Technical Leadership & Subject Matter ExpertiseServe as a recognized subject matter expert within the organization and broader technical community, providing authoritative guidance and engineering insight to complex mission challenges. Required QualificationsActive TS/SCI clearance required.  Must be a U.S. Citizen.Demonstrated mastery of advanced engineering technologies, scientific principles, theories, and concepts, with the ability to apply expertise across highly complex technical and mission-focused programs.Master's degree with 15+ years of relevant experience, or a Doctorate with 13+ years of relevant experience.Relevant experience includes facility analysis, infrastructure vulnerability assessments, and mechanical engineering within commercial, Department of Defense, or Intelligence Community environments.MEP Systems Expertise: Strong multidisciplinary understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment systems, filtration systems, and backup power infrastructure.Ability to identify industrial HVAC equipment, estimate system size and capacity, and assess operational capabilities through visual analysis.Ability to evaluate, organize, and leverage large datasets from diverse sources, including field-collected data, equipment technical manuals, and existing facility models.Expertise in 3D modeling, engineering analysis, and physical simulation methodologies.Experience interpreting engineering drawings, facility layouts, blueprints, and intelligence-derived technical data.Demonstrated ability to make sound technical judgments with incomplete information while clearly communicating assumptions, uncertainties, and recommended paths forward.Preferred QualificationsFive or more years of field experience working with industrial HVAC systems, including air-cooled and water-cooled chillers, condensers, cooling towers, air handlers, heat exchangers, boilers, and related equipment.Working knowledge of air management systems supporting critical environments, including medical laboratories, clean rooms, chemical laboratories, and similar specialized facilities.Hands-on experience with advanced Building Information Modeling (BIM) and engineering simulation tools, including Autodesk Revit, VENTSIM, ETAP, and other industry-standard CAD and modeling platforms.Experience supporting forensic engineering investigations, industrial accident analyses, or Department of Defense facility vulnerability studies.Professional Engineer (PE) license and/or Project Management Professional (PMP) certification.Experience identifying mechanical system vulnerabilities and developing effective mitigation or corrective action strategies.If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $154,050.00 - $278,475.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos is seeking an experienced Senior Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will leverage strong engineering expertise to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine functional capabilities and mission relevance. You will evaluate facility systems, model critical infrastructure, identify vulnerabilities, and provide technical insights that support complex intelligence and defense initiatives. This position requires an innovative engineer who can develop sound technical assessments in situations where complete information is inherently unavailable. The ideal candidate combines creativity, analytical rigor, and exceptional attention to detail with the ability to make informed decisions based on incomplete data. You will work alongside an interdisciplinary team of government and contractor professionals in a fast-paced, mission-focused environment while serving as a subject matter expert within your technical discipline. Primary ResponsibilitiesReverse Engineering & Facility CharacterizationAnalyze and characterize the physical and functional attributes of facility layouts, building architecture, and operational workflows within denied-access environments to determine facility purpose, capability, and operational capacity. Vulnerability AssessmentsEvaluate facility and infrastructure designs to identify security vulnerabilities, single points of failure, operational bottlenecks, and potential mission impacts. 3D Modeling & SimulationDevelop high-fidelity 3D models and conduct engineering simulations to replicate facility operations, workflow efficiencies, and structural or mechanical limitations. Infrastructure AnalysisApply multidisciplinary engineering expertise to assess supporting facility systems, with a primary focus on Mechanical, Electrical, and Plumbing (MEP) integration and functionality. Technical Documentation & ReportingTranslate field-collected data, intelligence information, and engineering assessments into comprehensive technical reports, CAD/BIM products, and simulation-based analyses for Department of Defense stakeholders. Research & DevelopmentSupport customer-approved research and development initiatives independently or as part of a multidisciplinary team to advance analytical methodologies, modeling capabilities, and mission solutions. Subject Matter ExpertiseServe as a subject matter expert within your technical domain, providing engineering insight and technical guidance to support mission requirements. Required QualificationsActive and in-scope TS/SCI clearance required and willingness to obtain a polygraph. Must be a U.S. Citizen. Demonstrated understanding of engineering principles, theories, and concepts and their application across a broad range of technical programs and mission challenges. Bachelor's degree with 12+ years of relevant experience, or a Master's degree with 10+ years of relevant experience. Relevant experience includes facility analysis, infrastructure vulnerability assessments, and mechanical engineering within commercial, Department of Defense, or Intelligence Community environments. MEP Systems Expertise: Strong multidisciplinary understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment systems, filtration systems, and backup power infrastructure. Ability to identify industrial HVAC equipment, estimate system size and capacity, and assess operational capabilities through visual analysis. Ability to evaluate, organize, and utilize large datasets from diverse sources, including field-collected data, equipment technical manuals, and existing facility models. Expertise in 3D modeling, engineering analysis, and physical simulation methodologies. Experience interpreting engineering drawings, facility layouts, blueprints, and intelligence-derived technical data. Demonstrated ability to make sound technical judgments with incomplete information while clearly communicating assumptions, uncertainties, and recommended paths forward. Preferred QualificationsFive or more years of field experience working with industrial HVAC systems, including air-cooled and water-cooled chillers, condensers, cooling towers, air handlers, heat exchangers, boilers, and related equipment. Working knowledge of air management systems supporting critical environments, including medical laboratories, clean rooms, chemical laboratories, and similar specialized facilities. Hands-on experience with advanced Building Information Modeling (BIM) and engineering simulation tools, including Autodesk Revit, VENTSIM, ETAP, and other industry-standard CAD and modeling platforms. Experience supporting forensic engineering investigations, industrial accident analyses, or Department of Defense facility vulnerability studies. Professional Engineer (PE) license and/or Project Management Professional (PMP) certification. Experience identifying mechanical system vulnerabilities and developing effective mitigation or corrective action strategies. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $131,300.00 - $237,350.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos is seeking an experienced Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will apply engineering expertise to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine functional capabilities and mission relevance. You will evaluate facility systems, model critical infrastructure, identify vulnerabilities, and provide technical insights that support complex intelligence and defense initiatives. This position requires a creative and analytical engineer who can develop sound technical assessments in situations where complete information is inherently unavailable. The ideal candidate combines strong problem-solving skills with engineering rigor, attention to detail, and a commitment to thorough analysis. You will work alongside an interdisciplinary team of government and contractor professionals in a fast-paced, mission-focused environment supporting high-priority national security objectives. Primary ResponsibilitiesReverse Engineering & Facility CharacterizationAnalyze and characterize the physical and functional attributes of facility layouts, building architecture, and operational workflows within denied-access environments to determine facility purpose, capability, and operational capacity. Vulnerability AssessmentsEvaluate facility and infrastructure designs to identify security vulnerabilities, single points of failure, operational bottlenecks, and potential mission impacts. 3D Modeling & SimulationDevelop high-fidelity 3D models and conduct engineering simulations to replicate facility operations, workflow efficiencies, and structural or mechanical limitations. Infrastructure AnalysisApply multidisciplinary engineering expertise to assess supporting facility systems, with a primary focus on Mechanical, Electrical, and Plumbing (MEP) integration and functionality. Technical Documentation & ReportingTranslate field-collected data, intelligence information, and engineering assessments into comprehensive technical reports, CAD/BIM products, and simulation-based analyses for Department of Defense stakeholders. Research & DevelopmentSupport customer-approved research and development initiatives independently or as part of a multidisciplinary team to advance analytical methodologies, modeling capabilities, and mission solutions. Subject Matter ExpertiseServe as a subject matter expert within your technical domain area, providing engineering insight and support to mission-focused teams. Required QualificationsActive and in-scope TS/SCI clearance and willingness to obtain a polygraph. Must be a U.S. Citizen.Demonstrated understanding of advanced engineering principles, theories, and concepts, and the ability to apply them across a broad range of technical programs and mission challenges.Bachelor's degree with 8+ years of relevant experience, or a Master's degree with 6+ years of relevant experience.Relevant experience includes facility analysis, infrastructure vulnerability assessments, and mechanical engineering within commercial, Department of Defense, or Intelligence Community environments.MEP Systems Expertise: Strong multidisciplinary understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment systems, filtration systems, and backup power infrastructure.Ability to identify industrial HVAC equipment, estimate system size and capacity, and assess operational capabilities through visual analysis.Ability to evaluate, organize, and utilize large datasets from diverse sources, including field-collected data, equipment technical manuals, and existing facility models.Expertise in 3D modeling, engineering analysis, and physical simulation methodologies.Experience interpreting engineering drawings, facility layouts, blueprints, and intelligence-derived technical data.Demonstrated ability to make sound technical judgments with incomplete information while clearly communicating assumptions, uncertainties, and recommended paths forward.Preferred QualificationsFive or more years of field experience working with industrial HVAC systems, including air-cooled and water-cooled chillers, condensers, cooling towers, air handlers, heat exchangers, boilers, and related equipment.Working knowledge of air management systems supporting critical environments, including medical laboratories, clean rooms, chemical laboratories, and similar specialized facilities.Hands-on experience with advanced Building Information Modeling (BIM) and engineering simulation tools, including Autodesk Revit, VENTSIM, ETAP, and other industry-standard CAD and modeling platforms.Experience supporting forensic engineering investigations, industrial accident analyses, or Department of Defense facility vulnerability studies.Professional Engineer (PE) license and/or Project Management Professional (PMP) certification.Experience identifying mechanical system vulnerabilities and developing effective mitigation or corrective action strategies.If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $107,900.00 - $195,050.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Mechanical Engineer (TS/SCI Required)Location: Reston, VA Leidos is seeking a talented Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will apply mechanical engineering expertise to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine functional capabilities and mission relevance. You will evaluate facility systems, model critical infrastructure, identify vulnerabilities, and contribute technical insights that support complex intelligence and defense initiatives. This position requires an engineer who thrives on solving challenging problems in situations where complete information is rarely available. The ideal candidate combines creativity, technical rigor, and attention to detail with the ability to develop sound engineering assessments from diverse sources of information. You will work as part of an interdisciplinary team of government and contractor professionals in a fast-paced, mission-focused environment supporting high-priority national security objectives. Primary ResponsibilitiesReverse Engineering & Facility CharacterizationAnalyze and characterize the physical and functional attributes of facility layouts, building architecture, and operational workflows within denied-access environments to determine facility purpose, capability, and operational capacity. Vulnerability AssessmentsEvaluate facility and infrastructure designs to identify security vulnerabilities, single points of failure, operational bottlenecks, and potential mission impacts. 3D Modeling & SimulationDevelop high-fidelity 3D models and conduct engineering simulations to replicate facility operations, workflow efficiencies, and structural or mechanical limitations. Infrastructure AnalysisApply multidisciplinary engineering expertise to assess supporting facility systems, with a primary focus on Mechanical, Electrical, and Plumbing (MEP) integration and functionality. Technical Documentation & ReportingTranslate field-collected data, intelligence information, and engineering assessments into comprehensive technical reports, CAD/BIM products, and simulation-based analyses for Department of Defense stakeholders. Research & DevelopmentSupport customer-approved research and development initiatives independently or as part of a multidisciplinary team to advance analytical methodologies, modeling capabilities, and mission solutions. Required QualificationsActive and in-scope TS/SCI clearance required with willingness to obtain a polygraph after hire. Must be a U.S. Citizen. Demonstrated understanding of engineering principles, theories, and concepts, with the ability to apply them across a range of technical and mission-focused programs. Bachelor's degree with 4+ years of relevant experience, or a Master's degree with 2+ years of relevant experience. Relevant experience includes facility analysis, infrastructure vulnerability assessments, and mechanical engineering within commercial, Department of Defense, or Intelligence Community environments. MEP Systems Knowledge: Strong multidisciplinary understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment systems, filtration systems, and backup power infrastructure. Ability to identify industrial HVAC equipment, estimate system size and capacity, and assess operational capabilities through visual analysis. Ability to evaluate, organize, and utilize large datasets from diverse sources, including field-collected data, equipment technical manuals, and existing facility models. Experience with 3D modeling, engineering analysis, and physical simulation methodologies. Familiarity with interpreting engineering drawings, facility layouts, blueprints, and intelligence-derived technical data. Ability to make sound technical judgments with incomplete information and clearly communicate assumptions, information gaps, and recommended paths forward. Preferred QualificationsFive or more years of field experience working with industrial HVAC systems, including air-cooled and water-cooled chillers, condensers, cooling towers, air handlers, heat exchangers, boilers, and related equipment. Working knowledge of air management systems supporting critical environments, including medical laboratories, clean rooms, chemical laboratories, and similar specialized facilities. Hands-on experience with advanced Building Information Modeling (BIM) and engineering simulation tools, including Autodesk Revit, VENTSIM, ETAP, and other industry-standard CAD and modeling platforms. Experience supporting forensic engineering investigations, industrial accident analyses, or Department of Defense facility vulnerability studies. Professional Engineer (PE) license and/or Project Management Professional (PMP) certification. Experience identifying mechanical system vulnerabilities and developing effective mitigation or corrective action strategies. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $87,100.00 - $157,450.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Mechanical Engineer (TS/SCI Required)Leidos is seeking a motivated Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will apply mechanical engineering principles to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine functional capabilities and mission relevance. You will evaluate facility systems, model critical infrastructure, identify vulnerabilities, and contribute technical insights that support complex intelligence and defense initiatives. This position is ideal for an engineer who enjoys solving challenging problems in situations where complete information is rarely available. The ideal candidate combines curiosity, analytical thinking, and engineering rigor with exceptional attention to detail. Working alongside experienced engineers, analysts, and government personnel, you will contribute to mission-critical assessments in a fast-paced, collaborative environment. Primary ResponsibilitiesReverse Engineering & Facility CharacterizationAnalyze and characterize the physical and functional attributes of facility layouts, building architecture, and operational workflows within denied-access environments to determine facility purpose, capability, and operational capacity. Vulnerability AssessmentsEvaluate facility and infrastructure designs to identify security vulnerabilities, single points of failure, operational bottlenecks, and potential mission impacts. 3D Modeling & SimulationDevelop high-fidelity 3D models and conduct engineering simulations to replicate facility operations, workflow efficiencies, and structural or mechanical limitations. Infrastructure AnalysisApply multidisciplinary engineering knowledge to assess supporting facility systems, with a primary focus on Mechanical, Electrical, and Plumbing (MEP) integration and functionality. Technical Documentation & ReportingTranslate field-collected data, intelligence information, and engineering assessments into comprehensive technical reports, CAD/BIM products, and simulation-based analyses for Department of Defense stakeholders. Research & DevelopmentSupport customer-approved research and development initiatives independently or as part of a multidisciplinary team to advance analytical methodologies, modeling capabilities, and mission solutions. Required QualificationsActive and in scope TS/SCI clearance and willingness to obtain a polygraph required. Must be a U.S. Citizen. Working knowledge of engineering principles, theories, concepts, and techniques, with the ability to apply them to technical and mission-focused challenges. Bachelor's degree with 2+ years of relevant experience, or a Master's degree with less than 2 years of relevant experience. Relevant experience includes facility analysis, infrastructure vulnerability assessments, and mechanical engineering within commercial, Department of Defense, or Intelligence Community environments. MEP Systems Knowledge: Understanding of Mechanical, Electrical, and Plumbing (MEP) system design, integration, and operational functionality within complex industrial or military facilities, including specialized containment systems, filtration systems, and backup power infrastructure. Ability to identify industrial HVAC equipment, estimate system size and capacity, and assess operational capabilities through visual analysis. Ability to evaluate, organize, and utilize large datasets from diverse sources, including field-collected data, equipment technical manuals, and existing facility models. Experience with 3D modeling, engineering analysis, and physical simulation methodologies. Familiarity with interpreting engineering drawings, facility layouts, blueprints, and intelligence-derived technical data. Ability to make sound technical judgments with incomplete information and clearly communicate assumptions, information gaps, and recommended paths forward. Preferred QualificationsTwo or more years of field experience working with industrial HVAC systems, including air-cooled and water-cooled chillers, condensers, cooling towers, air handlers, heat exchangers, boilers, and related equipment. Working knowledge of air management systems supporting critical environments, including medical laboratories, clean rooms, chemical laboratories, and similar specialized facilities. Hands-on experience with advanced Building Information Modeling (BIM) and engineering simulation tools, including Autodesk Revit, VENTSIM, ETAP, and other industry-standard CAD and modeling platforms. Experience supporting forensic engineering investigations, industrial accident analyses, or Department of Defense facility vulnerability studies. Professional Engineer (PE) license and/or Project Management Professional (PMP) certification. Experience identifying mechanical system vulnerabilities and developing effective corrective actions. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $69,550.00 - $125,725.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Software Reverse Engineer – Job Description  Who We AreKudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced capabilities throughout the entire USG arsenal. Our team of hackers and engineers have experience spanning centuries of research, development, and operations missions - across desktop, mobile, IoT, and embedded platforms. Kudu Dynamics, a Leidos company is uniquely qualified to anticipate tomorrow’s threats and build the next generation of capabilities. Job Description:Our team is working to develop novel and innovative cybersecurity capabilities. The Software Engineer will be part of a team developing a computer exploitation framework. Working closely with reverse engineers and vulnerability researchers, this position will develop a usable framework for software exploitation running in a highly constrained environment. Particular emphasis will be on building testable exploit chains, working to ensure reliability even in an unknown environment. It's the kind of job where you get to poke holes in real systems and look for things that make you stop and go "huh, that's weird…" This role will go from initial analysis of target systems all the way up to testing for reliability for mission-critical scenarios. Required Qualifications: A U.S. citizen with an active Top Secret security clearance with CI PolygraphExpertise in C/C++ (C Preferred).Knowledge of data structures, performance optimization / tuning, multi-threading.Expertise in at least one scripting language (Python preferred).Key Responsibilities: Taking Proof of Concept vulnerabilities and extending them into robust, reliable exploits.Maintaining a CI/CD pipeline for testing framework plugins.Extending framework features as needed.Working with vulnerability researchers to integrate proof of concepts into the framework. Preferred Qualifications: Experience with one or more assembly languages (x86, MIPS, ARM, etc).Experience with hardware reverse engineering.Experience with real-time embedded systems.Experience with signal processing.If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 17, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $107,900.00 - $195,050.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

The Homeland Sector within Leidos is seeking a Full Stack Software Developer Team Lead, with strong systems, software, cloud, and Agile experience to support a complex program to provide Agile development. In this role the candidate will support the Passenger Systems Program Directorate (PSPD) within Customs and Border Protection (CBP). In this hands-on position, you will work collaboratively to architect, design, build, deliver, and enhance highly available, scalable, real-time systems. You will exercise your judgment in determining and recommending the best designs based on customer business objectives, timelines and other resource constraints. You will participate in and/or direct major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. The team lead will direct an Agile development team to successfully support all design, creation, maintenance, and testing of JAVA full stack applications. **This position REQUIRES the candidate to be in Ashburn, VA, twice a week** Primary Responsibilities: Guide team development efforts towards successful project delivery. Directly guide, mentor, and coach a team of three senior developers. Monitor team performance; resolve impediments; develop and implement solutions for driving improvement. Coordinate schedule execution and plan program-wide software/architecture releases. Lead Program Increment (PI) Planning from technical aspect. Grooming the objectives and provide technical details, work on architecture. Lead cross-team collaboration in support of development, testing, and deployment efforts Brief customers on the development progress throughout the PI cycle on program status, including the status of testing, deployment, and release readiness Maintain application posture for code coverage and ensure the CM process defined is working for the team. Build the front-end of applications through appealing visual design and define needs for build APIs. Maintain high standards of software quality using software development best practices and automated testing. Identify and encourage areas for growth and improvement within the team. Collaborate with government customers on requirements development. Analyze and resolve technical and application problems. Lead developers are expected to be hands-on; to contribute and participate as a senior developer when needed Basic Qualifications: BA/BS and 12+ years of prior relevant experience or Masters with 10+ years of prior relevant experience OR 4 years of directly related experience in lieu of degree Must be able to maintain and obtain a CBP Background Investigation prior to start Must be a US citizen 8 years of hands-on experience using at least 6 the following, but not limited to: Angular,  JavaScript, CSS, & HTML, Springboot, Material UI, JAVA etc. AWS Cloud, Amazon Elastic Kubernete Service (EKS), Ansible, GIT, Rafay RESTful Web Services, Hibernate Oracle/ MySQL/Postgres, microservices, Springboot, Java. CI/CD, Experience in Agile development, and UX/UI. Experience with wireframe software to formulate effective mockups. Must be a self-starter, strong leader, and can work independently with little supervision. Knowledge of software design patterns. Proficiency with MS Office Products (Word, Excel, Visio, & PowerPoint). Proficiency with common Agile practices, service-oriented environments, and better development practices. Excellent written and verbal communication skills. Experience with DevOps frameworks. Experience with Jira, Confluence. Preferred Qualifications: Active DOD Top Secret or DHS CBP BI Solid experience as a full stack Java developer. AWS,  Microservices, User experience , containerization, CI/CD Experience in AWS App Development. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 17, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $131,300.00 - $237,350.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Our customer is the Defense Information Systems Agency (DISA) and acts as the provider of GIG/Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations. This position directly supports the DISA-provided GIG capabilities and services in the 24x7 DISA Global Operations Center (DGOC).    The Leidos Digital Modernization Sector and Global Solutions Management-Operations II (GSMO-II) have an opening in our TRANSPORT / IP (TRIP) NOC for a TRANSPORT / IP (TRIP) NOC TECHNICIAN at Scott AFB. Due to contract requirements, US Citizenship is required along with a current clearance. **Our anticipated salary range for this role is $65,000 - $75,000** PRIMARY RESPONSIBILITIES: • Create and update tickets utilizing ITSM.• Monitor network events and element management failures in real-time on a 24x7x365 basis across multiple monitoring tools.• Incident Correlation and Fault Analysis: Proactively analyze alarms; provide detailed analyses; leading to resolution of the alarm conditions, including filtering and correlating fault information; identifying the fault condition and its impacts; isolating root causes; coordinating correction of fault situations regardless of the fault in the infrastructure• Notify necessary points of contacts based on essential or heightened awareness networks, circuits or location of incidents• Incident Analysis (Fault Isolation): Support the fault isolation process; diagnoses and troubleshoot utilizing procedures to isolate where the fault occurs; identify failed network element(s) i.e. systems, hardware, software, circuits, or facilities; Activities include: testing, fault troubleshooting, fault localization, fault logging and assignment• Support all customers to include providing global situational awareness support.• Fault Correction: Correct/replace faulty network elements, coordinating with other service providers as necessary; Verify that service has been restored upon resolution of all customer-initiated tickets• Network/Service Restoration: Restore networks and service to full operation; Coordinate with other service providers as necessary to track service restoration and meet the DISN SLA and customer negotiated SLAs; Identify failures that are attributable to a different causes and impacts; Conduct reroute and normalization of services and circuits due to outages, degradation, or Authorized Service Interruptions (ASIs); Reroute routine circuits within 24 hours of notification; Documenting reroute in the configuration management database (CMDB); Provide updates on outages from technicians and/or government incident tickets until a resolution or path to resolution is identified and documented in ticket.• Provide 24/7/365 sustainment support for outages, degradation of services and Tier 1/Tier 2 support• Provide timely situational awareness to leadership and the impacted community within discovery and ticket creation using approved communication methods as outlined• Works directly with Shift lead and O&M leadership for guidance • Incident Escalation: Fault escalation, customer coordination and communications, and ticket system updates and status reporting utilizing procedures between Tier I and Tier II. Record, assess, track, and monitor incident tickets escalated to operational infrastructure.• Demonstrated knowledge of training, standard operating procedures, and tools within O&M: Evaluates and provides feedback for training, standard operating procedures, and tools; Assist in training Network controllers within O&M; Effectively communicates with the O&M team and the customer.• Provide technical advice and insight to peers and customers to assist in resolution of complex issues.• Demonstrate proficiency of several functions within the DISN: routers, switches, crypto devices, routing, DSN/DRSN, Video Services, Promina, CISCO, Juniper, MSPP, DWDM, Optical Switching, etc. BASIC QUALIFICATIONS: • Must have DoD-8570 IAT Level 2 baseline certification (Security+ CE, or equivalent) at start date.• Ability to work in a 24/7 operation.• Experience with one or more of the following: alarm surveillance, fault management, LAN maintenance, performance management.• Expertise in three or more of the following: routers, switches, crypto devices, routing, DSN/DRSN, Video Services, Promina, CISCO, Juniper, MSPP, DWDM, Optical Switching.• General understanding of network topologies, both transport and IP.• Currently possess an active Secret security clearance and be able to obtain and maintain a Top-Secret security clearance. PREFERRED QUALIFICATIONS: •Tech control facility or cyber transport experience•Circuit actions and vendor experience           •IP architecture experience•Telco NOC, inside or outside plant experience.•Experience with MS Office suite, i.e. Outlook, Excel, Word, Access, PowerPoint, TEAMs•Experience with one or more of the following: alarm surveillance, fault management, LAN maintenance, performance management, change management.•any additional certifications to include: CCNA, CYSA+, CASP, CCNP, JNCIE-ENT, JNCIA-Junos, WCNA, CCIE, F5 Networks Certified Technical Specialist, ITILv4, CCA-N, CCA-V, SolarWinds Certified Professional Program If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 17, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $48,100.00 - $86,950.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

This position would be offered to a contractor for a 3 month tenure.Due to the nature of the role, you must be an Australian Citizen and hold an active NV-1 AGVSA Security Clearance.Our team feel Leidos is a great place to work. Learn more about our culture and benefits by visiting us here https://www.leidos.com/company/global/australia/careers Do Work That Matters Leidos Australia delivers IT and airborne solutions that protect and advance the Australian way of life.  Our 2000 local experts, backed by our global experience and network of partners, are working to solve the world’s toughest challenges in government, intelligence, defence, aviation, border protection and health markets. We’re anticipating increased workload to support upcoming projects and are building a pipeline of talented professionals. If you hold an active NV-2 Australian Government Security Clearance, your skills may align with a range of Leidos customer opportunities. By submitting an Expression of Interest, you’ll be considered for future roles that match your experience, with suitable applicants contacted within 2–6 weeks. Your New Role and Responsibilities At Leidos Australia, our Matrix Engineering Team is a hub of technical excellence, supporting mission-critical programs across Defence, Intelligence, and Federal Government portfolios. As a Storage Engineer, you will: Manage and maintain enterprise storage and data protection platforms (NetApp and Commvault).Design, implement, administer and upgrade storage infrastructure, including firmware and software.Perform backup, restore and recovery activities to support operational and incident requirements.Follow ITSM processes, including incident, problem management, post-incident reviews and root cause analysis.Ensure storage services meet security, regulatory, quality and operational standards across the enterprise.What You’ll Bring to Make an Impact Substantial hands-on experience with NetApp storage technologies and Commvault data protection.Proven experience administering large-scale enterprise storage and backup environments.Demonstrated experience with storage capacity planning, utilisation and performance management (including AIQUM).Strong background working in large enterprise or project-based engineering environments.Relevant NetApp certifications or equivalent professional experience, with strong cloud infrastructure exposure (AWS, Azure or GCP).Don’t worry if you don’t tick all the boxes – if you meet most of them, we encourage you to submit your application.  We’re most interested in your strengths, what you want to learn and how far you want to go. Diverse Team Members, Shared Values and a Common Purpose Providing our customers with smarter solutions takes an incredible team with diversity of thought, experience and perspectives driving innovation. Inclusion is at the heart of our culture and is one of our core values. It’s about creating a workplace where everyone can do important work, feels welcome, valued, and respected, and has equal access to opportunities to thrive. Paul Chase – Chief Executive, Leidos Australia. Leidos Australia is an equal opportunities organisation and is committed to creating a truly inclusive workplace. We welcome and encourage applications from Aboriginal and Torres Strait Islanders, culturally and linguistically diverse people, people with disabilities, veterans, neurodiverse people, and people of all genders, sexualities, and age groups. Our five Advocacy Groups (Women and Allies Network, Young Professionals, Defence & Emergency Services, Action for Accessibility and Abilities and Pride+) provide an opportunity for team members to connect and collaborate on shared interests, and work to support and celebrate our diverse community. Next Steps To apply for this role, follow the links or apply via our Careers page.Recruitment process - 1 virtual interview and/or 1 face-to-face & background checks.Applicants may also need to meet International Traffic in Arms Regulations (ITAR) requirements. In certain circumstances this can place limitations on persons who hold dual nationality, permanent residency or are former nationals of certain countries as per ITAR 126.1.We are committed to making our recruitment process accessible to all candidates. Please get in touch with our Careers team [email protected] if you’d like to discuss any additional support during your application or throughout the recruitment process. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. If this sounds like the kind of environment where you can thrive, keep reading! The Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world. Your greatest work is ahead! The National Security Sector (NSS) is hiring for a Senior Program Manager to lead execution on a very large, nationally significant software development and system engineering and integration program. As the prime contractor, Leidos will drive performance optimization in achieving mission outcomes through efficient prosecution of the customer’s product backlog and roadmap. What you’ll be doing: Responsible for management of all contract activities that impact Leidos’ ability to meet the Government’s requirements.Allocate resources (staffing, facilities, and budgets) on the contract.Review and present the Integrated Program Baseline (or resource loaded schedule) to the Government.Review and approve Estimate To Complete, Contract Data Requirements (CDR) and other financial reports based on contractual requirements.Review risk and risk mitigation activities, and report status to the Contracting Officer’s Representative (COR).Prepare program status reviews and other formal reviews to be presented to the Government PM.Communicate issues and solutions to the Government PM.Ensure compliance with all regulatory and administrative requirements imposed by the contract in coordination with the Contractor’s contracts staff.Ensure the recruitment and training of program staff both direct and indirectReview all financial and technical reports before release to the Government.Ensure cross-discipline integration within the contract to meet Government needs.Provide Contractor input to the Award Fee Plan reviews.Mentor mid-level and junior staff.What does Leidos need from me? Active Top Secret/SCI (TS/SCI) with Polygraph security clearance required.Minimum Bachelor’s Degree from accredited college or university in any field related to support to government contracting or business management.Fifteen years’ experience as a program or project manager in managing programs and contracts of similar scope, type, and complexity is required.Must have a PMP, FAC-P/PM Senior Level, or Defense Acquisition Workforce Improvement Act (DAWIA) Level III certification in Program Management.Must have extensive experience and understanding of customer’s SIGINT/CNO environments, sensor enterprise, and tasking systems.Direct experience in managing multi-task contracts and subcontracts of various types and complexity, as well as experience in leading a multi-vendor environment is required.Shall be knowledgeable of the guidelines provided by the Federal Acquisition Regulation (FAR) and Defense Federal Acquisition Regulation Supplement (DFARS), DoD 5000 series, and ICD 801 policies.Must have demonstrated experience in conducting requirements analysis, resource allocation, project costing, deliverable tracking, schedule and financial data monitoring, and reporting.Favorable if you have: Master’s Degree from accredited college or university in any field related to support to government contracting or business management.Experience implementing solutions within cloud-based architectures.Expertise leading proven practices in executing large-scale Agile development programs.If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 13, 2025For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $154,050.00 - $278,475.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Your greatest work is ahead! Leidos is seeking a high-performing Portfolio Manager to lead the Long Range Sensors portfolio within the Persistent Surveillance Division of the Defense Sensors Business Area. Reporting directly to the Persistent Surveillance Division Manager, this leader will oversee profit & loss, execution excellence, customer engagement, and strategic growth across a portfolio of three programs delivering advanced long-range sensing solutions to U.S. Department of Defense acquisition and R&D customers. This role carries responsibility for ensuring mission success and meeting financial commitments across programs generating approximately $45M in annual revenue. The Portfolio Manager will be accountable for delivering strong technical performance, operational discipline, and predictable financial results while positioning the portfolio for sustained growth and market expansion. The successful candidate will lead program managers and cross-functional teams to ensure alignment with division strategy, customer priorities, and business objectives. Responsibilities include managing portfolio risk and opportunity, driving execution rigor, supporting capture and proposal activities, and strengthening customer relationships to enable long-term mission partnership. In addition, the Portfolio Manager will support workforce planning, talent development, and performance management within the portfolio, helping cultivate a high-performing, accountable team aligned with Leidos’ values and commitment to delivering mission-critical capability. If this sounds like the kind of environment where you can thrive, keep reading! Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here! Primary Responsibilities Lead a portfolio of emerging technology programs focused on advancing low to mid TRL sensing capabilities toward operational deployment. Own portfolio-level financial performance, including revenue, profit, forecasting accuracy, and cost control in development-heavy programs. Provide leadership and oversight to Program Managers while partnering closely with Chief Engineers and technical leads to managing technical risk and maturation plans. Apply strong technical judgment to evaluate architectures, development plans, integration strategies, and risk mitigation approaches. Drive disciplined execution in environments characterized by evolving requirements and high technical uncertainty. Support and lead proposal efforts, ensuring compelling technical solutions, executable plans, and competitive pricing strategies; coach Program Managers through proposal development and technical reviews. Maintain strong relationships with R&D, advanced capability, and classified customers, ensuring alignment with mission needs and long-term technology strategy. Ensure compliance with security requirements, including execution within Special Access Program (SAP) environments as applicable. Collaborate with Business Development, Engineering, Finance, Contracts, and Security functions to ensure portfolio success and growth. Develop and mentor technical and program leadership talent to sustain innovation and execution excellence. Basic Qualifications Bachelors degree with 8+ years of related experience, or Masters degree with 6+ years of experience in program management, defense systems, engineering leadership, or related technical fields. Demonstrated experience managing a large program or a portfolio of programs with financial accountability. Demonstrated experience supporting and leading proposal efforts, including pricing strategy, technical solution development, and review processes; ability to coach and guide Program Managers through proposal development will be a critical component of this role. Proven ability to lead technical teams and deliver complex hardware and/or software solutions to DoD customers. Strong business acumen, including experience with forecasting, financial management, and operational performance metrics. Experience working with cross-functional teams in a matrixed organization. Must be a resident of Huntsville, AL or willing to relocate to the north Alabama area. U.S. Citizen with an active Secret clearance and ability to obtain and maintain a Top-Secret clearance. Preferred Qualifications Direct P&L responsibility for portfolios or programs exceeding $10M annually. Experience supporting or managing defense acquisition programs involving sensor systems, radar, or ISR technologies. Experience transitioning programs from development to production and sustainment. Demonstrated success supporting capture efforts and contributing to proposal wins. Prior leadership experience developing program managers or leading multi-disciplinary teams. Degree in Electrical Engineering or related field with experience in radar systems, RF systems, or advanced sensing technologies. Direct experience with radar system development, integration, or testing. Experience executing programs within Special Access Program (SAP) environments. Experience transitioning technologies from R&D to production or operational fielding. Demonstrated success shaping and winning follow-on work in advanced technology or classified environments. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:March 17, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $131,300.00 - $237,350.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Elevate Your Career with Leidos! At Leidos, we believe in empowering our team members through comprehensive training, collaborative teamwork, and exposure to cutting-edge technical challenges. Ready to take your career to the next level? Join us and let’s build your future together. We are currently seeking a GEOINT Advisor to join our team at Langley Air Force Base, Virginia. This role is an integral part of a prestigious Military Intelligence Program, supporting the USAF Air Combat Command's (ACC) ISR mission. With opportunities for technical skill development, career advancement, and internal mobility, the possibilities here are endless! Please Note: This position is contingent on immediate backfill needs or newly available roles within the program. Step into a key position and make an immediate difference! As a GEOINT Advisor, you will: Deliver executive-level assessments to senior Air Force ISR leaders, focusing on integrating advanced ISR technologies into Joint warfighting strategies. Serve as a GEOINT subject matter expert, addressing multi-ISR discipline analysis to meet command requirements. Collaborate with AF Distributed Common Ground System (AF DCGS) teams to enhance mission operations. Conduct ALOE traces and analyses, ensuring requirements are met for DCGS consumers. Review and refine DCGS products and TTPs to align with directives from the Air Force and Intelligence Community. Stay at the forefront of ISR advancements by evaluating emerging technologies and solutions. Perform in-depth analyses of trends, systems, and processes, while implementing training improvements and quality control metrics. Act as a liaison across air component operations, intelligence units, and ISR production teams, driving collaborative success. Basic Qualifications: A Bachelor's degree with 6+ years of related intelligence experience. Additional related experience may be considered in lieu of a degree. Hands-on operational experience with Air Force DCGS. Comprehensive understanding of Intelligence Community Directive 203: Analytic Standards. Outstanding oral and written communication skills with critical thinking capabilities across operational, theater, and strategic levels. The ability to work both independently and collaboratively to develop innovative solutions to complex ISR challenges. Preferred Qualifications: ISR experience at the Air Force Wing level or higher. Leidos offers a culture of innovation, impact, and inclusion. Are you ready to make your mark in the world of ISR? Let’s grow together—apply today! AMSOPP1 If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:December 16, 2025For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $73,450.00 - $132,775.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Grow with us! Through training, teamwork, and exposure to challenging technical work, let Leidos show you how to accelerate your career path. Leidos currently has an opening for Weapons and Tactics Analyst located at Langley Air Force Base, Virginia. This position is part of a large Military Intelligence Program supporting the USAF Air Combat Command (ACC) Intelligence, Surveillance and Reconnaissance (ISR) mission. Note: This is a contingent job posting for vacancies as they arise within the program. Primary Responsibilities. Develops, coordinates, and implements techniques and procedures (TTP); support the development and update of Air Force Instructions, exercise designed learning objectives.The successful applicant must possess a thorough understanding of Air Force Distributed Common Ground System (AF DCGS) operations, AF Intelligence, Surveillance and Reconnaissance (ISR) policy, guidance and operations, and Intelligence Community Directive.The applicant will be a wing-level advocate at Weapons and Tactics (WEPTAC) events and collaborate best practices and initiatives with internal / external AF DCGS stakeholders. The applicant must possess a general understanding of systems integration, information exchanges and applications at AF DCGS and Air Operations Center operating levels.They will help align training and exercise designed learning objectives (DLO) with operational mission initiatives; participate in Headquarters Air Combat Command-led exercise planning and execution; and capture lessons learned.Basic Qualifications. Bachelors Degree and 8 years of experience or a Masters and 6 years of experience. Additional experience may be considered in lieu of a degree.Experience / familiarity with Jira / Confluence.Must have a current TS/SCI Security Clearance.Preferred Qualifications. Experience with DCGS operations.AMSOPP1 If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:December 16, 2025For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $73,450.00 - $132,775.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos is hiring an energetic, motivated, innovative individual to be a part of our team supporting Center for Medicare and Medicaid Services (CMS) in Baltimore, MD. The Cloud Engineer works closely with the Program team to manage, maintain, modernize and optimize application’s performance, durability, and cost to best support CMS and the general public. You will deliver solutions that ultimately ensure that the functions of Medicare, Medicaid, and Marketplace are carried out for the US citizen and contribute to efforts to reduce healthcare costs. With a “no downtime, zero outages” vision and mantra, we support a range of hybrid and multi cloud based application needs, ranging from managed services to self-service, all of which are based on our customer’s required level of support.  As a Senior Cloud Engineer you will be required to advise on and develop solutions in multiple cloud environments, including MS-Azure, GCP, AWS, and OCI, that are highly innovative and achieved through research and integration of industry best practices. You will influence development of solutions that impact strategic project/program goals and business results while also leading work of other technical staff. You will resolve highly complex problems using significant application of technical knowledge, conceptualizing, reasoning and interpretation. You will interact daily with various technical resources across different vendors which are fulfilling technical requirements for the customer.  Your goal will be to work with all stakeholders to help Leidos ensure delivery of high-quality, robust, and scalable solutions with minimal business impact. Lastly and most importantly, you will represent our program when meeting with the Application Development Organizations (ADO) and identify opportunities to provide support as well as modernization and innovation opportunities for their application. The current work environment is remote leveraging various tools such as Slack, Microsoft Teams, and Zoom. Primary Responsibilities Build and maintain products and native cloud services focused on application development lifecycle automation across multiple cloud environments including AWS, Azure, GCP, and OCI.  Apply best practices and best of breed services within and across multiple CSPs to provide parity and cohesive integration within the customer’s hybrid cloud enterprise.Work with the cloud, security, testing, and application teams to build orchestration pipelinesBuild, support, and maintain CI/CD pipelines that conduct multiple deployments a dayContribute to a culture of continuous improvement by establishing and participating in feedback loopsMeet with applications on a regular cadence to provide support and identify opportunities for optimizationServe as a main point of contact for all technical needs and become the subject matter expert of the applications the team manages.Become a subject matter expert with CMS Hybrid Cloud and CMS Enterprise Shared Service offeringsDevelop strong relationships and partnerships with the other CMS Hybrid Cloud Product TeamsContinuously refresh infrastructure components such as EC2 instances, Cloud Formation Stacks, Kubernetes clusters, containers, etc.Promote strong quality control practices for all managed services as well as maintain robust documentationWork independently to resolve highly complex problems using significant application of technical knowledge, conceptualizing, reasoning, and interpretationRequired Qualifications Multiple cloud environments experience of AWS, Azure, GCP with OCI experience a value plus. Basic Qualifications Works independently under “minimal supervision"Knowledge of cloud-based security tools, best practices and policies including demonstrated experience protecting all layers of the application stack.Knowledge of the Software Delivery Life Cycle (SDLC).Experience in cloud technologies, cloud services, IaC, cloud storage, cloud networking and cloud security.Package Management tools: rpm, pip, dnf, yumExperience with container build and orchestration: Kubernetes, EKS, ECS, AKS, DockerOperatizing System Setup and Best practices: RHEL, AL2, AL23, WindowsBuild Tools: Jenkins, GitHubExperience with CI/CD Tools: Sonarqube, Snyk, JFrogDependency Management tools: Maven.Configuration Management tools: Ansible, Terraform, Git.Experience with Cloud IaaS, PaaS, and SaaS offerings.Experience working with FISMA compliant systemsCertified in AWS, GCP, and Azure technologies and experienced in best practice design and delivery of native cloud servicesExperience with AWS CloudWatch services, Azure’s Application Insights, Monitor, Log Analytics, and Monitor Metrics, and GCP’s Cloud Operations suiteExperience with AWS/Azure/GCP CLI, shell languages (e.g., Bash, PowerShell), and formal programming languages (e.g., Python, Golang, Rust).Experience with containers (Docker, ECS, EKS, AKS, ACI/ACA), serverless (Lambda), and Virtual Machine (VMware/Hyper-V, KVM) architectures.Experience bootstrapping and automating the build of complete environments.Efficient communication, zero handoff mentality, accountability and integrity as core.Excellent writing and verbal communication skills.Ability to manage conflict effectively.Ability to adapt and be productive in a fast-paced dynamic environment.Excellent communication and collaboration skills supporting multiple stakeholders and business operations.Self-starter, self-managed, and a team player.US Citizenship is required.Required Clearance Ability to obtain a Public Trust clearanceAll candidates supporting the CMS programs must have lived in the United States at least three (3) out of the last five (5) years prior to be considered.Preferred Qualifications Current Multiple Cloud Certification (e.g., AWS CSA-Professional/CDE-Professional, Azure ASA Expert/DevOps Engineer Expert, and GCP PCA/PCDE) and demonstrable experience with each.Proven ability to work with challenging customers.Agile-based knowledge and skill, including experience with Scrum Ceremonies and work management tools (e.g., (JIRA, Confluence).Security Skills—Knowledge of information assurance compliance and information security basics within CMS.Attributes of a Successful Candidate Strategic thinker with a balance of technical depth and business acumen.Collaborative leader capable of driving consensus across diverse stakeholder groups.Skilled at navigating complex, regulated environments with an emphasis on compliance and security.Passionate about innovation, automation, and continuous service improvement.Education & Experience BS degree and 12 – 15 years of prior relevant experience or Masters with 10 – 13 years of prior relevant experience. May possess a Doctorate in technical domain. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:May 19, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $131,300.00 - $237,350.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos is searching for an experienced and fully cleared Network Engineer to join our team in Chantilly, VA. The team is made-up of highly technical and motivated individuals. The engineer for this role will assist in troubleshooting complex problems and implementing cutting-edge solutions. As such, this individual must be an excellent problem solver and work well in a collaborative team environment. Candidate must have proven hands-on experience working as a network engineer. OCONUS experience is highly desired. 50% travel to OCONUS location. The program is made up of CONUS and OCONUS teams who regularly interact across varying time zones. As a result, the candidate must have excellent communication skills and be flexible with regards to teamwork and tasking. A demonstrated ability to perform in cross-functional teams to achieve results in a timely manner is desired. Primary Responsibilities: Install, configure, and troubleshoot network appliances (routers, switches, and firewalls) Monitor entire network infrastructure (LAN & WAN) and provide regular reporting Collaborate closely with the Chief Engineer to ensure network optimization and the completion of other tasks Ensure network uptime, performance, and security Document and enforce network standards Manage and maintain IP addressing schema Travel OCONUS as needed Maintain network lab in Chantilly, VA REQUIRED Skills, Experience, and Education: Master's degree and at least 12 years minimum experience depending on education, training, skills and experience. Experience requirement may be reduced with Doctorate degree in network engineering, computer science, or related subject. Must possess an active and in-scope TS/SCI With Poly to be considered Active/current basic CCNA certification Solid understanding of OSI or TCP/IP model Hands-on experience with network monitoring, network diagnostics, and network analytics tools Experience configuring/troubleshooting Cisco appliances Experience configuring/troubleshooting routing and switching, including routing protocols Experience writing scripts for Cisco switches, routers, and firewalls Ability to work well individually, as well as within a team environment, and always maintain professional behavior with all stakeholders. Ability to lift 50 lbs. and climb 30 ft. Desired Qualifications: CCNA/CCNP Security certification Experience working with Cisco ASA/Firepower and Juniper SRX appliances Experience implementing and troubleshooting IPSec VPN tunnels Deep understanding of networking protocols, i.e., IPSEC, EIGRP, OSPF, QoS Experience installing and troubleshooting iDirect VSATs Experience using Solarwinds Performance Monitor and Configuration Manager Experience implementing and troubleshooting AWS Experience implementing and troubleshooting VoIP & PBX systems Experience implementing and troubleshooting Asterisk If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting:June 18, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range:Pay Range $131,300.00 - $237,350.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.