• Infrastructure Engineer /Administrator

    CACI International (Mclean, VA)
    …automating repetitive tasks to improve efficiency, performance, and the security profile of the systems under management. The system engineer must also act ... **The Opportunity:** CACI is seeking a highly motivated Linux System Engineer and Administrator with hands on...candidate will ensure the smooth operation of existing enterprise systems by patching and updating the system … more
    CACI International (09/26/25)
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  • Linux Engineer

    ManTech (Quantico, VA)
    …and managing PostgreSQL. **Security Clearance Required** : + Must have a current/active Top Secret with the ability to obtain SCI. **Physical Requirements:** + ... + The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and unclassified networks in support of Cyber investigations and… more
    ManTech (10/31/25)
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  • Model Based Systems Engineer

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a cleared Model Based Systems Engineer with experience in Defense, Federal Civilian, and/or National Security systems to join ... 7+ years or more of related experience. An additional 4 years of experience may be considered in lieu...(DNG, RQM, iRIS, etc.) is a bonus + Broad systems engineering experience (eg system architecture and… more
    SAIC (11/14/25)
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  • NCIS Senior Network Engineer

    Arena Technical Resources, LLC (Quantico, VA)
    …Job Location: Quantico, Virginia (Hybrid onsite 3 days/2 days remote) Eligibility/Clearance: Top Secret Clearancerequired. This position supports a government ... NCIS Senior Network Engineer Location: Quantico, VA, US Job ID: ATR...deployment of upgrades to existing data, video, and related systems in a multi-location environment - Ensures all required… more
    Arena Technical Resources, LLC (12/05/25)
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  • Lead Software Engineer

    TheIncLab (Mclean, VA)
    …US Citizen and willing and eligible to obtain a US Security Clearance at the Secret or Top - Secret level. Benefits Working at TheIncLab TheIncLab was founded ... key member of the R&D Team, the Lead Software Engineer will guide small teams through complex engineering projects,...Requirements + Bachelor's degree in Engineering, Computer Science, Information Systems , or related field + 5+ years of experience… more
    TheIncLab (09/26/25)
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  • Systems Engineer (Test Tool…

    KBR (Springfield, VA)
    Title: Systems Engineer (Test Tool Development and Automation) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end ... based upon contract award. KBR is seeking a Mid-Level Systems Engineer to support government customers in...Computer Science, Mathematics, or related quantitative science field. + 4 - 7 years of relevant experience related to… more
    KBR (12/11/25)
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  • Network Engineer

    Assertive Professionals (Chantilly, VA)
    Network Engineer About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small Business ... the Defense Contracting community taking 15th place in America's Top 100 Small Business Visionaries for the 2018 Best...from the Department of Labor in 2021, has a 4 .9 rating on Glassdoor, made the Inc. 5000 list… more
    Assertive Professionals (11/21/25)
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  • SIGINT Mission Engineer

    SAIC (Chantilly, VA)
    …system and design, interface and data architectures, validation and verification, systems integration, and system & operational performance analysis. + ... **Description** SAIC is seeking a **SIGINT Mission Engineer ** to support assessments and studies for the...Offices. You will manage development, test, and validation of systems assessment methodologies and tools such as STK, SOAP,… more
    SAIC (12/11/25)
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  • Payload Processing Systems Engineer

    QinetiQ (Chantilly, VA)
    …specification requirements and identify system shortfalls + Develop and document system level requirements for OSL payload processing systems and facilities ... recommend changes to sustainment (tactical) and road-map (strategic) plans to assure system viability throughout the systems lifespan Decommission systems … more
    QinetiQ (12/13/25)
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  • Network Engineer (Levels 2, 3)

    CACI International (Springfield, VA)
    Network Engineer (Levels 2, 3) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular ... & Cybersecurity Services (TCS) program is actively hiring a team of TS /SCI cleared Network Engineers to support an Intelligence Community customer's wide-area (WAN),… more
    CACI International (11/10/25)
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