• Systems Administrator

    Belay Technologies (Fort Meade, MD)
    …is seeking a System Administrator to join our intel team. As a Systems Administrator , you will be part of the Multi-Factor Authentication (MFA) Help Desk ... can transfer this and other related data to source systems for follow on processing. Candidates should have the...should have the following qualifications: + TS/SCI Clearance with polygraph + Three (3) years experience is required +… more
    Belay Technologies (01/14/26)
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  • Systems Administrator - COMSEC

    KBR (Chantilly, VA)
    Title: Systems Administrator - COMSEC Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... this SETA role, you use your expertise to perform Systems Administration for a COMSEC group. A Systems...week. Qualifications: Required: + Clearance: Top Secret SCI with Polygraph . + Experience: 3+ years' experience as a System… more
    KBR (12/06/25)
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  • System Administrator Level 3

    Jovian Concepts, Inc. (Annapolis, MD)
    …by law in employment.<\/div><\/div>","faviconId":"rzdliec182fab1ef548499d4ddfcbeeacba4f","jobTitle":"System Administrator Level 3","companyName":"Jovian Concepts, ... <\/head>\n \n \n \n Jovian Concepts, Inc is looking to hire a\x26nbsp;System Administrator Level 3 for a great opportunity in the Annapolis Junction area.\x26nbsp;… more
    Jovian Concepts, Inc. (12/24/25)
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  • MSIC - HPC Linux Systems

    COLSA Corporation (Huntsville, AL)
    Join our team as a Linux Systems Administrator , where you will support and manage a diverse mix of workstations, servers, and high-performance computing (HPC) ... eligibility + Must be able to pass the CI polygraph within 180 days of hire + CompTIA Security+...+ Active TS//SCI clearance with a current CI Scope Polygraph . Applicant selected will be subject to a government… more
    COLSA Corporation (12/31/25)
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  • Linux Systems Administrator

    Arena Technical Resources, LLC (St. Louis, MO)
    Linux Systems Administrator Location: St. Louis, MO,...and CI Poly is required (we can sponsor your polygraph after joining if you don't already have one) ... Description We are looking for a talented TS/SCI cleared Red Hat Data Center / Systems Administrator in St. Louis, MO to join a team of IT professional that are… more
    Arena Technical Resources, LLC (01/05/26)
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  • Systems Administrator

    ManTech (Laurel, MD)
    …might be considered for a degree. + 12+ years' of experience as a Systems Administrator in programs and contracts of similar scope, type and complexity. ... MANTECH seeks a motivated, career and customer-oriented Windows System Administrator to join our team in Laurel, MD. **Responsibilities include, but are not limited… more
    ManTech (01/06/26)
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  • Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented **Senior Systems Administrator ** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... or high school diploma/GED and 13 years of relevant systems administration experience with 3 + years in a...+ Must possess a current / active TS/SCI with Polygraph **Physical Requirements:** + Must be able to be… more
    ManTech (12/19/25)
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  • Systems Administrator

    Leidos (Chantilly, VA)
    …Leidos has an exciting opening for you as our next Tier 2 Service Desk/ Systems Administrator . Your job will be supporting as a Linux administrator ... software configuration, rebooting, and other remedial actions on customer systems . Work will be conducted on-site at our Chantilly,...be considered in lieu of degree. + TS/SCI with Polygraph is required + Strong communication skills, both verbal… more
    Leidos (01/13/26)
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  • Senior Principal Contract Administrator

    BAE Systems (Westminster, CO)
    **Job Description** As a Senior Principal Contract Administrator in the Tactical Solutions contracts department, reporting to a Manager, Contracts, you will assume a ... approaches. Ensure compliance with various federal regulations and BAE Systems policies. + Maintain a regular and predictable work...and DFARS. \#LI-LO1 A security clearance or access with Polygraph is not required to be eligible for this… more
    BAE Systems (12/16/25)
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  • Systems Administrator

    SAIC (El Segundo, CA)
    **Description** SAIC's Horizon 2 program is seeking a **System Administrator ** . This role provides support to the US Space Forces mission of delivering warfighter ... capability via the Space Systems Command's Space Combat Power weapon system portfolio. This...Special Access Programs and willing to consent to a Polygraph examination Target salary range: $120,001 - $160,000. The… more
    SAIC (12/25/25)
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