• 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)
    …**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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  • 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 (Washington, DC)
    …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 (11/01/25)
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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 (Gaithersburg, MD)
    …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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  • 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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  • DevOps Engineer ( SME )

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **DevOps** ** Engineer ( SME )** in our **National Security Sector's (NSS) Cyber & Analytics ... us and make a difference in National** **Security!** **Job Summary** This DevOps Engineer role provides mission critical system support to our customer. You will… more
    Leidos (08/08/25)
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  • Cyber Security Engineer ( SME )

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for Cyber Security Engineer SME in our **National Security Sector's (NSS) Cyber & Analytics ... Description** This role is responsible for protecting the customer's information systems and networks from potential cyber-attacks. The Cyber Security Engineer more
    Leidos (10/30/25)
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  • Software Engineer ( SME )

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Software Engineer ( SME )** in our **National Security Sector's (NSS) Cyber & Analytics ... us and make a difference in National Security!** **Job Description** As a Software Engineer on this program, you will have the opportunity to build strong systems more
    Leidos (08/08/25)
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  • Cloud Computing Engineer SME

    KBR (Chantilly, VA)
    Title: Cloud Computing Engineer SME Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology ... contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future...defense. KBR is seeking a highly qualified Cloud Computing Engineer to support our customers in Chantilly, VA, that… more
    KBR (10/21/25)
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  • DevOps Engineer SME

    Noblis (Chantilly, VA)
    Responsibilities As a DevOps Engineer SME , you will provide expert -level leadership in the design, deployment, testing, certification, operations, and ... classified environments + Address advanced interoperability issues for operating systems , support libraries, components, and application dependencies in multi-classification… more
    Noblis (10/30/25)
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  • Top Secret Biometrics Engineer SME

    Insight Global (Ashburn, VA)
    Job Description We are seeking a SME Biometrics Engineer to join our clients innovative team in Ashburn, VA. This is a hybrid position with two days onsite and ... lead the development and integration of cutting-edge biometric recognition systems powered by artificial intelligence. Responsibilities include: -Lead the design… more
    Insight Global (10/16/25)
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  • Senior Radar SME (Hybrid)

    Parsons Corporation (Centreville, VA)
    …redefine what's possible. **Job Description:** Parsons is looking for an exceptional **Senior Radar Subject Matter Expert ** ( SME ) to join the on-going ... engineering technical support + Trade studies + A senior engineer with highly relevant experience in radar systems...specifications, and present the results to senior management. + Active Secret clearance is required to start with eligibility… more
    Parsons Corporation (08/16/25)
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