• Principal/ Sr . Principal HPC System

    Northrop Grumman (Jessup, MD)
    …our mission! Northrop Grumman Mission Systems (NGMS) is seeking a **Principal or Sr . Principal HPC System Administrator ** . This position is located at ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...req and can be filled as a Principal or Sr . Principal HPC System Administrator **… more
    Northrop Grumman (12/05/25)
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  • Sr . System Administrator

    Arena Technical Resources, LLC (Reston, VA)
    Sr . System Administrator Location: Reston, VA, US Job ID: ATR 17710 Job Description Job Title: Sr . System Administrator Location: Reston, VA - ... Eligibility: TS/SCI with CI Polygraph Job Description: The job duties of the Sr . System Administrator are as follows: * Plans, designs, and implements… more
    Arena Technical Resources, LLC (12/05/25)
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  • Sr . Systems Administrator

    Arena Technical Resources, LLC (Washington, DC)
    …(DBMS) products . Address all vulnerabilities identified via system scanning Systems Administrator Senior Advisor Requirements and Qualifications . ... Sr . Systems Administrator Location:... Sr . Systems Administrator Location: Washington, DC, US.... Secret Clearance to start Required Technical Skills: . Senior Level system administrator skills… more
    Arena Technical Resources, LLC (10/25/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …complex challenges with integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server ... to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II shall...production and maintenance of documentation for the team's solution system (s), sub- system (s), and component(s) deployed and in… more
    V2X (11/15/25)
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  • Sr . Administrator (Azure,…

    System One (Alexandria, VA)
    Job Title: Sr . Administrator Location: Alexandria, Virginia Type: 6 + months Contract To Hire Contractor Work Model: Onsite (with some flexibility) Security ... Clearance: Secret Clearance US Citizenship Required We are seeking a Sr . Administrator with strong hands-on experience in Microsoft Azure and Red Hat… more
    System One (12/14/25)
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  • Sr . Systems Administrator

    Chenega Corporation (Fort Belvoir, VA)
    Sr . Systems Administrator Ft....our Talent Network Sr . Systems Administrator Ft. Belvoir, VA C-CHR-24-050 TheSenior System ... administration and information assurance support. Duties and Responsibilities: + + Provide systems administration support for the Windows operating system and… more
    Chenega Corporation (12/01/25)
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  • Sr . Systems Administrator

    CyberData Technologies (Bethesda, MD)
    Job Title: Sr Systems Administrator (NEI-18) Location: Bethesda, MD CyberData Technologies is seeking a Senior Systems Administrator with a ... Ensure compliance with internal security and operational standards during system changes. * Monitor and report system ...during system changes. * Monitor and report system performance and security posture; implement improvements as needed.… more
    CyberData Technologies (11/06/25)
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  • Sr Mac Systems Administrator

    SAIC (Washington, DC)
    **Description** SAIC is hiring for a Sr System Administrator who specializes in Mac Systems to manage and support our Mac-based enterprise IT ... environment. The role involves daily system configuration, technical support and general trouble shooting for...+ Must have 10+ years relevant experience in Mac Systems administration. + Must be able to pass a… more
    SAIC (10/21/25)
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  • Sr . System Administrator

    Leidos (Odenton, MD)
    …Ft Meade, MD. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). **PRIMARY ... group at Leidos has a career opening for a System Administrator on a DISA contract. This...**PREFERRED QUALIFICATIONS:** + Integration of cyber security tools and systems with network performance, trouble ticketing, and security subsystems… more
    Leidos (10/21/25)
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  • Sr . Subcontracts Administrator

    KBR (Chantilly, VA)
    Title: Sr . Subcontracts Administrator Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... KBR's National Security Solution (NSS) Procurement & Supply Chain function seeks a Sr . Subcontracts Administrator to provide proposal support across NSS as it… more
    KBR (12/04/25)
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