• System Administrator

    Chenega Corporation (Oakton, VA)
    …Support, Software Development, and Program Management. Job Title: System Administrator Location:Oakton, Virginia Clearance Level: Top Secret Clearance ... System Administrator Oakton, VA . Information...Installing, configuring, and supporting windows -based. applications on Windows 7, 8, and 10 desktop systems ,… more
    Chenega Corporation (11/12/25)
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  • Associate System Administrator

    Lockheed Martin (Littleton, CO)
    …networks invulnerable to ever evolving threats\. What You Will Be Doing As a ** System Administrator ** within this dynamic environment, you will be the guardian ... team environment * CompTIA Linux\+ or Red Hat Certified Systems Administrator Certification * Ability to provide...must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should… more
    Lockheed Martin (12/18/25)
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  • Senior Classified Systems…

    The MITRE Corporation (Bedford, MA)
    …and operational focus. Roles and Responsibilities: The team seeks a full-time Systems Administrator to support the deployment, operation, and maintenance of ... who has prior experience working as a classified IT Systems Administrator . This is an on-premises position...combination of related education and work experience. + Active Top Secret clearance with the ability to… more
    The MITRE Corporation (01/13/26)
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  • Linux Systems Administrator 3/4…

    Northrop Grumman (Melbourne, FL)
    …The Northrop Grumman Classified Solutions team is seeking an experienced **Linux Systems Administrator ** to join its dynamic team of technical professionals. ... limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract....have the ability to obtain, and maintain, a DOD ** Top Secret ** level security clearance as a… more
    Northrop Grumman (01/13/26)
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  • Systems Administrator / Diads / Sam…

    Lockheed Martin (Nellis Air Force Base, NV)
    …forefront of cutting\-edge technology and engineering\. Lockheed Martin is seeking a Systems Administrator to develop, integrate, and operate DIADS and ... the future of aerospace and defense\. **Basic Qualifications:** * A current active Top Secret Level Clearance with an investigation completed within the last… more
    Lockheed Martin (11/09/25)
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  • Classified Area System Administrator

    Leidos (Huntsville, AL)
    …minimum of two 2 years of System Administrator experience. + **Current Secret clearance** with ability to obtain a Top - Secret clearance. + **DoD ... the Digital Modernization sector, is seeking an early career ** System Administrator ** to join our team. In...for consideration. You must also be eligible to obtain Top Secret clearance upon hire. **Primary Responsibilities:**… more
    Leidos (11/06/25)
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  • Systems Administrator Junior

    General Dynamics Information Technology (St. Louis, MO)
    …RQ212695 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... Yes **Job Description:** Transform technology into opportunity as a Systems Administrator with GDIT. A career in...efficiency. WHAT YOU'LL NEED TO SUCCEED: Basic Qualifications: + TS /SCI Clearance w/ ability to obtain CI Poly +… more
    General Dynamics Information Technology (01/14/26)
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  • GIS Enterprise Administrator

    Guidehouse (Washington, DC)
    …Data Science Consulting **Travel Required** **:** Up to 10% **Clearance Required** **:** Active Top Secret ( TS ) **What You Will Do** **:** Guidehouse is ... You Will Need** **:** + An ACTIVE and MAINTAINED " TOP SECRET /SCI ( TS /SCI)" Federal or...GIS systems (PROD and DEV) + Broad system administration experience on Windows and/or Linux… more
    Guidehouse (11/25/25)
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  • Senior System Administrator

    The Boeing Company (Colorado Springs, CO)
    …Defense, Space & Security** (BDS) Phantom Works Organization is seeking a **Senior System Administrator ** to support the **Phantom Works Space Battle Management ... Management Command & Control (SBMC2) team requires a Senior System Administrator to support operation of a...eligibility. **Security Clearance** This position requires an active US Top Secret Security Clearance (US Citizenship Required).… more
    The Boeing Company (01/09/26)
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  • Sr. Network Administrator

    Leidos (Scott Air Force Base, IL)
    …Scott AFB, IL. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). **PRIMARY ... System Administration skills in both Linux and Windows environments to navigate current systems while...will suffice in lieu of degree + Active DoD Top Secret Security Clearance and ability to… more
    Leidos (01/15/26)
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