• Principal System Administrator

    RTX Corporation (Tucson, AZ)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current At Raytheon, the foundation of everything we do ... problems. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows ...relevant experience + Active and transferable US government issued top secret security clearance is required prior… more
    RTX Corporation (10/16/25)
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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) ... to 12 years of related experience + Active DoD Top Secret Clearance with SCI eligibility +...experience in Linux environments. + Cross-OS administration experience with Windows . + Virtualization experience with VMWare or Nutanix. +… more
    COLSA Corporation (10/02/25)
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  • Linux Systems Administrator

    JHNA (Patuxent River, MD)
    Patuxent River, MD, USA | Full Time Linux Systems Administrator JHNA is currently seeking a talented Linux Systems Administrator to support our NAVAIR ... Roles/Responsibilities: + Installing, configuring and managing the Linux operating systems and related toolsets + Gathering requirements, developing and...Secret Clearance. Must have ability to obtain a Top Secret , Interim Top … more
    JHNA (08/26/25)
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  • Enterprise Systems Administrator I

    Trace Systems Inc (Shaw AFB, SC)
    Job Overview Job Title: Enterprise Systems Administrator I Location: Shaw AFB, SC This position is pending contract award. Job Responsibilities Trace Systems ... is actively recruiting for a, Enterprise Systems Administrator I to support the AFCENT Combined Air Operations...Required. Minimum Qualifications + Active, in-scope US Government issued Top Secret with SCI clearance eligibility. +… more
    Trace Systems Inc (08/15/25)
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  • System Administrator

    Leidos (Bethesda, MD)
    …has an exciting opening for you as our next Tier 3 Service Desk/ Systems Administrator supporting the OSINT Integration Center under our 10-year DOMEX Technology ... job will be to bring together Linux (primarily) and Windows systems administration, systems maintenance,...of relevant professional experience + Must have an active Top Secret security clearance with the ability… more
    Leidos (10/01/25)
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  • Modernization Cyber Systems…

    Lockheed Martin (Hanover, MD)
    …used for contingent offers\. \#RMSC6ISR \#OneLMHotJobs \#RMSRB2025 **Basic Qualifications:** * Current DoD Top Secret SCI with Polygraph SA2: * A High School ... experience\. **Desired Skills:** Capabilities: * Configure and manage UNIX and Windows \(or other applicable\) operating systems and installs/loads operating… more
    Lockheed Martin (10/10/25)
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  • Systems Administrator

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    …the ability to obtain a TS /SCI with Poly highly desired * Operating Systems : Strong knowledge of Windows , Linux, or other relevant operating systems . ... ** Systems Administrator ** **Category:** Business Consulting, Strategy... TS /SCI with Poly highly desired * Operating Systems : Strong knowledge of Windows , Linux, or… more
    CGI Technologies and Solutions, Inc. (10/01/25)
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  • MSIC - Windows Systems Analyst

    COLSA Corporation (Huntsville, AL)
    …as the technical lead for a diverse infrastructure environment. The role spans Windows systems , Nutanix virtualization, Linux (RHEL), and enterprise storage. The ... a fast-paced, complex environment. + Support, configure, and troubleshoot Windows 11 and Windows Server environments (AD,...Minimum of 8 years related experience + Active DoD Top Secret Clearance with SCI eligibility; US… more
    COLSA Corporation (10/10/25)
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  • Mid System Administrator

    Parsons Corporation (Quantico, VA)
    … Windows and Azure server environments **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required for this ... + CKA - Confirms ability to install, configure, and manage Kubernetes clusters. + Azure Administrator Associate or MCSE: Windows Server - Credential for managing… more
    Parsons Corporation (08/16/25)
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  • Principal Systems Administrator

    Northrop Grumman (Jacksonville, FL)
    …history. Northrop Grumman Aeronautics Systems has an opening for Principal Systems Administrator to join our team of qualified, diverse individuals within ... in Jacksonville, FL. Job Description: . Perform as a Windows \VMware System Administrator for a classified government...in lieu of degree - Must have an active Top Secret /SCI clearance or higher (with a… more
    Northrop Grumman (09/13/25)
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