• Principal Linux Systems

    RTX Corporation (El Segundo, CA)
    …only US citizens are eligible for a security clearance. + Must have experience with Linux systems administration + Experience with one of the following: ... citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the...You Will Do:** + Provide IT systems administration in a heterogeneous Redhat Enterprise Linux more
    RTX Corporation (09/09/25)
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  • Windows Linux Systems Administrator…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …of education and experience (including military service). + **3+ years** of relevant systems administration experience. + **Active TS /SCI clearance with ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other...**Windows and Red Hat Enterprise Linux (RHEL) systems .** **Key Responsibilities:** + Perform administrative support… more
    General Dynamics Information Technology (07/16/25)
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  • LINUX Sr Principal Systems Engineer…

    General Dynamics Information Technology (Washington, DC)
    …**Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT ... ENGINEER WILL MAKE AN IMPACT:** + Enterprise Authorization: Integrate Linux Systems (currently, RHEL 7/8 and Ubuntu...6 months of assignment. + **Security Clearance Level:** Active Top Secret + **Required Skills and Abilities**… more
    General Dynamics Information Technology (09/23/25)
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  • Senior Linux /Unix Systems

    SMX (Dahlgren, VA)
    …Required: Secret + Must be able to obtain and maintain Top Secret + 6+ years' experience administering Linux /Unix systems and networks + Experience ... in Dahlgren, VA.** Essential Duties & Responsibilities include thedaily administration of Linux /Unix systems and...Secret clearance with ability to obtain and maintain Top Secret clearance + Networking protocols +… more
    SMX (09/03/25)
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  • Senior Systems Administrator ( Linux

    Alaka'ina Foundation Family of Companies (Kauai County, HI)
    …(DoD) environment. This role requires deep technical expertise in Linux systems , leadership in secure system administration , and a strong working knowledge ... Family of Companies (FOCs) is looking for a Senior Linux Systems Administrator Range Network. The position...AND CLEARANCE: + Must be a US Citizen + Top Secret security clearance is required with… more
    Alaka'ina Foundation Family of Companies (09/19/25)
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  • Senior Systems Administrator ( Linux

    Amentum (Waimea, HI)
    …(DoD) environment. This role requires deep technical expertise in Linux systems , leadership in secure system administration , and a strong working knowledge ... + Apply and manage patches and updates across all Linux systems in accordance with DoD and...+ Red Hat Certified System Administrator (RHCSA) **Security Clearance** Top Secret security clearance is required with… more
    Amentum (09/24/25)
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  • Sr. Linux Systems Administrator

    RTX Corporation (El Segundo, CA)
    …with Linux system administration . **Qualifications We Prefer** : + Active Top Secret security clearance is preferred. + Experience with Linux and ... citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything...the world. **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows… more
    RTX Corporation (09/24/25)
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  • Sr. Linux /Windows Systems

    Lockheed Martin (King Of Prussia, PA)
    …topographies, Virtualization Technologies * Must currently have an active Top Secret Clearance **Desired Skills:** * Windows and Linux OS patching/security ... system administration , including installing, patching, troubleshooting and hardening Linux and Windows operating systems \(both bare\-metal and virtual… more
    Lockheed Martin (09/18/25)
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  • System Administrator - Red Hat Enterprise…

    Kaizen Approach, Inc (Annapolis Junction, MD)
    Linux (SAL) to support the implementation and operation of Red Hat Enterprise Linux -based or Red Hat Derivative IT systems . In this role, you'll install, ... configure, and maintain Linux -based operating systems and their services while...systems and their services while performing essential system administration tasks such as account management, system health monitoring,… more
    Kaizen Approach, Inc (09/25/25)
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  • Senior Systems Administrator - Linux

    ICF (Reston, VA)
    …DC MD VA area We are seeking a highly skilled and customer-facing Senior Systems Administrator to support Linux and Windows environments for a critical Treasury ... a **Public Trust clearance** . **Key Responsibilities:** + Maintain and administer Linux and Windows operating systems , ensuring system performance and security… more
    ICF (09/27/25)
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