• Classified Systems

    The MITRE Corporation (Mclean, VA)
    …This is a role best suited for someone who has prior experience working as a classified IT Systems Administrator . This is an on-premises position on our ... difference with us. Department Summary: The team seeks a full-time Senior Systems Administrator to support the deployment, operation, and maintenance of IT … more
    The MITRE Corporation (09/04/25)
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  • Systems Administrator

    Leidos (Alexandria, VA)
    …networks, and IT infrastructure configuration. + 4+ years of experience as a Systems Administrator for classified and unclassified networks. Experience with ... **Description** **Leidos- Systems Administrator ** **Location:** Alexandria, VA **Clearance Required:** Active DoD Top Secret (SCI eligibility) ️ **Sector:**… more
    Leidos (08/21/25)
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  • Sr. Systems Administrator - Herndon,…

    General Dynamics Information Technology (Herndon, VA)
    systems and infrastructure. We are seeking a highly skilled and experienced **Senior Systems Administrator ** to join a classified project. The ideal ... related field (or equivalent experience). + 8+ years of experience as a Systems Administrator in a classified or secure environment. + Must possess… more
    General Dynamics Information Technology (08/16/25)
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  • Systems Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Annapolis Junction, MD)
    Systems Administrator The Opportunity: Your combination of people skills and system administrator expertise makes you the team hero, solving one problem ... help us revolutionize our client's business tools. As a Systems Administrator on our project, you'll configure,...may need to meet eligibility requirements for access to classified information ; Secret clearance is required. Compensation At… more
    BOOZ, ALLEN & HAMILTON, INC. (09/09/25)
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  • Systems Administrator

    Koniag Government Services (Washington, DC)
    **Koniag Management Solutions,** a Koniag Government Services company, is seeking a Systems Administrator with a Top-Secret clearance with the ability to obtain ... Management Solutions, a Koniag Government Services company, is seeking an experienced Systems Administrator to support our government client. The ideal candidate… more
    Koniag Government Services (07/02/25)
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  • Systems Administrator , Senior

    BOOZ, ALLEN & HAMILTON, INC. (Fort Meade, MD)
    Systems Administrator , Senior The Opportunity: Are you looking for an opportunity to use your technical expertise in support of cyberspace operations? As a ... Systems Administrator , you'll have the chance to...may need to meet eligibility requirements for access to classified information ; TS/SCI clearance with polygraph is required.… more
    BOOZ, ALLEN & HAMILTON, INC. (09/09/25)
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  • Senior Specialist Systems Engineering…

    L3Harris (Springfield, VA)
    …Job Title: Senior Specialist, Systems Engineering - Information Technology Senior Systems Administrator (Active TS/SCI w/ CI Poly Required) Job Code: 26996 ... Job Description: L3Harris Technologies is seeking an experienced Information Technology Senior Systems Administrator or Mid-to-Senior Level Systems Engineer… more
    L3Harris (09/04/25)
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  • Systems Administrator / Top Secret…

    Lockheed Martin (Arlington, VA)
    …\(ACL\) at Lockheed Martin's Advanced Technology Laboratories \(ATL\) is seeking an IT Systems Engineer/ Systems Administrator with a demonstrated ability to ... computing environments\. The selected candidate will serve as a system and network administrator for multiple program and internal R&D systems that support the… more
    Lockheed Martin (07/12/25)
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  • Windows Systems Administrator

    Northrop Grumman (Annapolis Junction, MD)
    …work of your career. Northrop Grumman Mission Systems is seeking a Windows Systems Administrator to join its Classified Solutions team in Annapolis ... to include password resets and RSA token pin recovery. + Manage systems administrator credential services such as TPAM. + Diagnose and resolve technical… more
    Northrop Grumman (08/29/25)
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  • Enterprise Systems Administrator (2)

    FGS, LLC (Suitland, MD)
    Enterprise Systems Administrator (2)Suitland, MD **REQUIRED** : US Citizenship **Clearance Requirement:** TS/SCI Eligibility (with ability to pass CI Polygraph ... On-Site **Salary Range:** $150,000 - $175,000 **Position Overview:** The Enterprise Systems Administrator provides daily administration and sustainment of… more
    FGS, LLC (09/05/25)
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