Linux Senior Systems Administrator Peraton IncLinux Senior Systems AdministratorSterling, VA$112,000–$179,000 / yearPeraton is seeking a Linux Senior Systems Administrator ("Linux Sys Admin") to join our team of qualified and diverse individuals on our Department of State (DOS) Bureau of Diplomatic Technology (DT) Consular Affairs Enterprise Infrastructure Operations (CAEIO) Program. The team works closely with other program team members, contractors, DOS leadership and business stakeholders to monitor performance, address faults, ensure secure service delivery, and craft and implement solutions for operational issues and new requirements.
Systems Administrator TS/SCI w/Poly Peraton IncSystems Administrator TS/SCI w/PolyFort Meade, MD$146,000–$234,000 / yearOur dynamic team delivers information security solutions that facilitate secure data flows and the detection/prevention of unauthorized behaviors, performs system security vulnerability assessments and solution development, and provides enterprise-level network, server, desktop, and application security services. Benefits: Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and participation in an attractive bonus plan.
Senior Software Engineer / Data Scientist (Training Systems) Leidos Holdings Inc.Senior Software Engineer / Data Scientist (Training Systems)Chantilly, VA$154,050–$278,475 / yearBachelor's degree in Computer Science, Data Science, Software Engineering, Mathematics, Engineering, or related technical field with 8+ years of relevant experience and 15+ years overall experience; additional experience may be considered in lieu of degree. Familiarity with contemporary AI coding ecosystems and developer productivity tools such as Claude Code, OpenAI Codex, Cursor, OpenCode, GitHub Copilot, or similar platforms.
2027 Internship - Systems and Modeling Engineer Johns Hopkins Applied Physics Laboratory2027 Internship - Systems and Modeling EngineerLaurel, MarylandPart timeThat can mean building a computer model of a missile to understand how it flies, developing software to test hardware in a laboratory, analyzing sensor or radio-frequency (RF) performance, or exploring how emerging technologies such as directed energy and electronic warfare could be used in future defense systems. Our work combines aerospace engineering, electrical engineering, software development, physics, mathematics, and systems engineering to understand advanced technologies and determine how they perform in realistic environments.
Mid - Systems Engineer VTG.Mid - Systems EngineerVA2+ years of experience in Systems Engineering, Systems Administration, Testing, DevOps, or a related technical role. VTG is seeking a Systems Engineer responsible for supporting and maintaining application infrastructure across multiple network environments.
NewSoftware Integrator Lockheed Martin CorpSoftware IntegratorManassas, VA$110,300–$204,900 / yearLockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate''s work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer. The ICP program provides a common Integrated Undersea Surveillance Systems (IUSS) signal processing and display system software and hardware suite for the US Navy.
Systems Engineers - multiple levels - CLEARANCE and POLYGRAPH REQUIRED Constellation TechnologiesSystems Engineers - multiple levels - CLEARANCE and POLYGRAPH REQUIREDFort Meade, Maryland$160,000–$240,000 / yearThe benefits package: • Affordable healthcare options with 80% employer paid premium PLUS a company-funded HSA • Comprehensive Dental insurance • Vision with 80% employer paid premium • Employer paid Life insurance 100% • Employer paid Short-term and Long-term disability 100% • Annual training, continued education, and professional memberships reimbursement • Unlimited access to Red Hat Enterprise Linux and AWS training and accreditation • Annual reimbursement for technology i.e. phones, computers, printers, etc. conception, design & development, testing, production, distribution/deployment, operation, maintenance & support, decommissioning Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.
Systems Architect PeratonSystems ArchitectGermantown, Maryland$104,000–$166,000 / yearFull timeYou will lead transformation initiatives, drive compliance with federal cybersecurity frameworks, and collaborate directly with DOE leadership and cross-functional engineering teams to ensure the network enterprise remains secure, scalable, and aligned with evolving mission requirements. As a Network Architect on the CBOSS 2.0 program, you will serve as the principal technical authority for enterprise network design and modernization, shaping the architecture of DOE networks that underpin operations across the DOE complex.
Scrum Master / Systems Engineer CymertekScrum Master / Systems EngineerChantilly, VirginiaComputer Science, Systems Engineering, Information Technology, Software Engineering, Information Systems, Project Management, Industrial Engineering, Business Administration, Data Science, Electrical Engineering, etc. Scrum Master, Agile Coach, Systems Engineer, Project Manager, Product Owner, Technical Project Manager, DevOps Engineer, Agile Systems Engineer, Program Manager, Release Train Engineer, etc.
Systems Engineer (Intermediate) XMSTARTSystems Engineer (Intermediate)Chantilly, VAThey will provide Systems Engineering and Technical Advisory (SETA) services to assist the government in implementing and executing systems engineering processes to integrate mission systems into the operational baseline at a customer facility in Chantilly, Va. Develop and maintain Model-Based Systems Engineering (MBSE) models of mission systems, integrating MBSE tools into a digital thread to connect siloed information systems.
Senior Systems Engineer (ESS-INT) VTGSenior Systems Engineer (ESS-INT)Chantilly, VirginiaFull timeResponsibilities: They will provide Systems Engineering and Technical Advisory (SETA) services to assist the government in implementing and executing systems engineering processes to integrate mission systems into the operational baseline at a customer facility. Develop and maintain Model-Based Systems Engineering (MBSE) models of mission systems, integrating MBSE tools into a digital thread to connect siloed information systems.
Senior Test Systems Engineer VTGSenior Test Systems EngineerSpringfield, VirginiaFull timeSenior-level Test Systems Engineers assist in leading Application, System and Integration Testing teams performing test and evaluation across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies to ensure timely and accurate GEOINT. Senior-level systems integration experience working in government or industry integrating large complex System of Systems or Service Oriented Architecture environments residing in cloud, on premise, or hybrid infrastructures.
Test Systems Engineer VTGTest Systems EngineerSpringfield, VirginiaFull timeResponsibilities: Mid-level Test Systems Engineers perform Application, System and Integration Testing across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies to ensure timely and accurate GEOINT. Mid-level systems integration experience working in government or industry integrating large complex System of Systems or Service Oriented Architecture environments residing in cloud, on premise, or hybrid infrastructures.
Systems Engineer XMSTARTSystems EngineerWashington, DCWork with cross-functional teams, including developers, network engineers, and project managers. XMSTART is always looking to add experienced and strategic full-time Systems Engineers to our team, in Chantilly, VA or Washington, DC.
Systems Engineer SwiftSystems EngineerChantilly, VirginiaManage and support mobile device operations and transitions, including the engineering of new enterprise mobile device solutions collaborating across multiple technical teams. Determination of official compensation or salary relies on several different factors including, but not limited to: level of position, complexity of job responsibilities, geographic location, work experience, education, certifications, Federal Government contract labor categories, and contract wage rates.
Senior AI Systems Architect UnissantSenior AI Systems ArchitectAshburn, VAThis position serves as a trusted technical advisor to leadership, program stakeholders, architects, developers, data scientists, and cybersecurity teams while driving the transition of AI capabilities from research and experimentation into production operational environments. We are seeking a Senior AI Systems Architect to serve as a technical lead and enterprise architect for Artificial Intelligence (AI), Machine Learning (ML), Generative AI (Gen-AI), and advanced analytics initiatives supporting our federal customer.
NewSystems Engineer Senior CACISystems Engineer SeniorSterling, Virginia$82,100–$172,400 / yearJob Title: Systems Engineer SeniorJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental USAnticipated Posting End: 12/31/2026 The Opportunity: Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Senior AI Systems Architect Unissant IncSenior AI Systems ArchitectAshburn, VAThis position serves as a trusted technical advisor to leadership, program stakeholders, architects, developers, data scientists, and cybersecurity teams while driving the transition of AI capabilities from research and experimentation into production operational environments. Position Overview: The Senior AI Systems Architect leads the design of enterprise AI ecosystems and reusable AI services within the client's AI Enablement Center, enabling AI-as-a-Service capabilities across multiple applications and operational environments.
Systems Engineer AForge LLCSystems EngineerWashington, DC$110,000–$220,000 / yearSystems Engineer: AFORGE is seeking Systems Engineers to support the design, integration, testing, and lifecycle management of complex defense and intelligence systems. Some positions may require eligibility for SCI access or the ability to obtain additional customer-specific clearances.
Sr. NC3 Systems Engineer The Aerospace CorpSr. NC3 Systems EngineerChantilly, VA$151,300–$226,900 / yearDSG is unique at Aerospace as it not only directly supports major customers, including the U.S. Space Force, U.S. Space Command, Air Force Material Command, and senior leadership at the Pentagon, but also provides a broad range of technical support across the national space enterprise, maintaining vertical responsibilities with customers' portfolios as well as horizontal, matrixed responsibilities across the corporation. The Defense Systems Group (DSG) provides analysis-based decision support to senior leaders on space architectures, policy and strategy, technology development, warfighter capability enablers, systems integration, defense industrial base, and threat reduction to help shape existing and future space missions across the national security space (NSS) enterprise.