• COMSEC / 5G cellular / VHF Systems

    General Dynamics Information Technology (Washington, DC)
    …are the foundation of our overall approach to maintenance. You act as the maintenance subject matter expert for our government client and exhibit the ... years of related experience **US Citizenship Required:** Yes **Job Description:** ** Systems Engineer - Active Top Secret Required** Seize your opportunity to… more
    General Dynamics Information Technology (11/01/25)
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  • Systems Engineer SME

    General Dynamics Information Technology (Washington, DC)
    …17 + years of related experience **US Citizenship Required:** Yes **Job Description:** **Sr Principal Systems Engineer - Active Directory - Active Top ... to make a personal impact as a **Sr** **Principal Systems Engineer ** **- ACTIVE DIRECTORY**...means designing and implementing the systems that matter most. You will ensure that Active more
    General Dynamics Information Technology (09/05/25)
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  • Systems Engineer - Platform…

    V2X (Springfield, VA)
    …challenges with integrity, respect, responsibility, and professionalism. We are hiring for a Systems Engineer - Platform - active TS/SCI clearance for ... Services (SEAS) Team to support our government customer based in Springfield, VA. The Systems Engineer - Platform provides a combination of software and … more
    V2X (09/12/25)
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  • Edge Information Systems Security…

    V2X (Springfield, VA)
    …with integrity, respect, responsibility, and professionalism. We are hiring an Edge Information Systems Security Engineer (ISSE) - active TS/SCI clearance to ... VA. The position is required to be onsite. The position requires an active Top Secret/SCI clearance and the ability to obtain and maintain a Counterintelligence… more
    V2X (09/09/25)
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  • Systems Engineer SME

    General Dynamics Information Technology (Washington, DC)
    …**US Citizenship Required:** Yes **Job Description:** **Senior Principal Systems Engineer - Exchange Messaging - Active Top Secret Required** Seize ... becomes better. **How a Senior Principal Systems Engineer will make an Impact:** + SME ...hardware issues. + Serving as technical and functional training expert . + Ensuring the security and integrity of system… more
    General Dynamics Information Technology (10/06/25)
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  • Senior Systems Engineer

    NANA Regional Corporation (Alexandria, VA)
    …company, is looking to hire a Senior Systems Engineer to serve a subject matter expert for USCG IT systems lifecycle management. This Hybrid ... that require expert level knowledge of the subject matter for effective implementation. + From...matter for effective implementation. + From a computer systems standpoint, participates as needed in all phases of… more
    NANA Regional Corporation (10/25/25)
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  • Systems Engineer - Subject

    Noblis (Chantilly, VA)
    Responsibilities As a Systems Engineer SME , you will provide expert leadership in planning, designing, and implementing sophisticated additions and ... changes to network hardware, infrastructure server environments, and operating systems with special emphasis on Top Secret classification enclaves. Your extensive… more
    Noblis (11/01/25)
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  • Cybersecurity Automation Subject

    Koniag Government Services (Arlington, VA)
    …Government Services company **,** is seeking a Cybersecurity Automation Subject Matter Expert ( SME ) with an active TS/SCI to support KITS and our ... off, and more. We are seeking a Cybersecurity Automation Subject Matter Expert ( SME...to modernize and streamline cybersecurity compliance. The Cybersecurity Automation SME will engineer and implement automated solutions… more
    Koniag Government Services (10/06/25)
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  • Data Engineer - Subject

    Noblis (Chantilly, VA)
    Responsibilities As a Data Engineer SME , you will be responsible for engineering tasks to deliver advanced analytic applications across classified environments. ... IC Data Services requirements by integrating various intelligence data sources and systems . + Develop and maintain data analytics solutions for desktop and web-based… more
    Noblis (10/30/25)
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  • Software Engineer - Subject

    Noblis (Chantilly, VA)
    Responsibilities As a Software Engineer SME , you will provide technical leadership in the design, development, testing, and management of complex application ... standards + Architect software solutions that effectively interact with cross-domain systems + Optimize existing code and recommend process improvements for handling… more
    Noblis (10/30/25)
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  • Network Engineer - Subject

    Noblis (Chantilly, VA)
    Responsibilities As a Network Engineer SME , you will provide expert leadership in designing, implementing, and managing sophisticated network systems and ... Your expertise will ensure the reliability, security, and performance of network systems that enable users to access highly sensitive data securely across complex… more
    Noblis (10/30/25)
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  • Full Stack Software Engineer SME

    Leidos (Chantilly, VA)
    …Area, is seeking a highly experienced, versatile, and visionary Full Stack Software Engineer Subject Matter Expert ( SME ) for the Maru Program. In ... Gaithersburg, MD + Alexandria, VA + Chantilly, VA **Clearance Level Required:** Active TS/SCI and successfully pass a Polygraph exam. **Primary Responsibilities:** +… more
    Leidos (11/01/25)
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  • Systems Engineer & Process…

    KBR (Chantilly, VA)
    Title: Systems Engineer & Process SME Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... upon contract award KBR is seeking a highly qualified Systems Engineer to provide Systems ...strategies and source selections as directed. Required Qualifications: + Active TS/SCI + Bachelor of Science/Bachelor of Arts (BS/BA)… more
    KBR (08/08/25)
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  • Systems Engineer SME

    SAIC (Chantilly, VA)
    …to expand their knowledge while increasing their responsibilities. SAIC has an opening for a SME Systems Engineer to provide Systems Engineering and ... is responsible for designing, building, and operating national security-related systems based in space, in the air, and on...with at least 9 years of relevant experience + Active TS/SCI clearance with polygraph + Strong technical fundamentals… more
    SAIC (08/13/25)
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  • LAN/WAN Engineer SME

    IT Veterans (Alexandria, VA)
    LAN/WAN Engineer SME Alexandria, VA . Information Technology Apply Now LAN/WAN Engineer SME Alexandria, VA Job Summary: IT Veterans is currently seeking ... a LAN/WAN Engineer SME to join our team. You...hardware and software. + Advanced knowledge of desktop operating systems and applications. + Expert Knowledge of… more
    IT Veterans (08/08/25)
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  • SME SIGINT Engineer

    KBR (Chantilly, VA)
    …national security and shape the future of space defense. KBR is seeking a Senior SME SIGINT Systems Engineer with technical and engineering skills and ... Title: SME SIGINT Engineer Belong. Connect. Grow....US Government Intelligence Community and Military users. The SIGINT Systems Engineer serves as a technical advisor… more
    KBR (08/08/25)
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  • Software Engineer - SME

    KBR (Chantilly, VA)
    …national security and shape the future of space defense. KBR is seeking a Software Engineer SME to join our team. The candidate will leverage their extensive ... Title: Software Engineer - SME Belong. Connect. Grow....software engineering experience and skillsets to provide Systems Engineering and Technical Assistance (SETA) support to a… more
    KBR (10/21/25)
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  • Software Engineer (508 Compliance…

    Saliense Consulting (Arlington, VA)
    …of the full benefits package. Saliense is now hiring a Technical Consultant (508 Compliance SME ) to join our team in support of our team at the Office of Naval ... days/week onsite in Arlington, VA. Candidates must possess an active Secret clearance to be considered and must be...a Top Secret clearance. Position Description: Technical 508 Compliance SME to join our team in support of a… more
    Saliense Consulting (10/01/25)
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  • Cybersecurity Engineer SME

    SAIC (Washington, DC)
    **Description** SAIC is seeking a **Cybersecurity Engineer SME ** to join the Machine-assisted Analytic Rapid-repository System (MARS) Advanced Development ... award, with an anticipated decision expected by Winter/ Spring 2026.** The **Cybersecurity Engineer SME ** responsibilities include, but are not limited to: +… more
    SAIC (10/29/25)
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  • Sr. Network Engineer /Architect SME

    Leidos (Fort Belvoir, VA)
    **Description** Leidos is seeking a **Sr. Network Engineer /Architect with subject matter expertise** to support medium to large scale operations supporting ... external mission partners operating in CONUS and OCONUS locations. The Network Engineer /Architect SME supports operation and maintenance of current and… more
    Leidos (10/21/25)
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