• Senior Linux Systems Administrator

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... in National** **Security!** Join our team as a **Linux Systems Administrator ** , where you'll provide crucial...Virtualization + **Security Clearance** : Must have an active Top Secret /SCI with Polygraph cssrc conmd If… more
    Leidos (12/19/25)
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  • System Administrator

    Leidos (St. Petersburg, FL)
    … clearance is required to qualify for consideration. Eligibility to be cleared to Top Secret and Special Access Programs, post hire, is also required. **Primary ... documentation. + Install, configure, and sustain a mixture of Windows and RedHat-based systems . + Work under...cleared to Special Access Programs and ability to obtain Top Secret security clearance. + Must have… more
    Leidos (12/19/25)
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  • Classified Area System Administrator

    Leidos (Huntsville, AL)
    …and a minimum of two 2 years of System Administrator experience. + **Current Secret clearance** with ability to obtain a Top - Secret clearance. + **DoD ... for consideration. You must also be eligible to obtain Top Secret clearance upon hire. **Primary Responsibilities:**...SSCP) + Familiarity with Risk Management Framework requirements for Windows and Linux systems . + Strong written… more
    Leidos (11/06/25)
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  • Senior Systems Administrator

    Chenega Corporation (Arlington, VA)
    **Req ID:** 38512 **Summary** **Senior Systems Administrator ** **Arlington, VA** Are you ready to enhance your skills and build your career in a rapidly evolving ... of our nation. SecuriGence is seeking a talented **Senior Systems Administrator ** to help contribute to our...DOD IAT Level II Certification is required. + DOD Top Secret clearance w/ SCI eligibility. **Knowledge,… more
    Chenega Corporation (12/10/25)
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  • System Administrator

    BAE Systems (Washington, DC)
    …in lieu of degree, eight years of position related work experience + An active DoD Top Secret security clearance + A DoD 8570 IAT Level II or III certification ... Systems is seeking a full-time on-site System Administrator at Washington Navy Yard supporting our work as...support system deployments + Support the configuration management of systems + Harden Windows /RHEL Servers in accordance… more
    BAE Systems (12/16/25)
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  • System Administrator

    UIC Government Services and the Bowhead Family of Companies (Quantico, VA)
    …* COMPTIA Sec + or higher certification * 7 years of experience as a Systems Administrator or similar infrastructure engineering role. * Advanced knowledge of ... Windows Server and/or Linux systems . * Strong...a plus. SECURITY CLEARANCE REQUIREMENTS: Must currently hold a Top Secret /SCI clearance. Physical Demands: * Must… more
    UIC Government Services and the Bowhead Family of Companies (11/09/25)
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  • System Administrator

    ManTech (Eglin AFB, FL)
    …analysis/vulnerability assessment, Group Policy management and configuration. **Security Clearance:** + Active Top Secret Clearance + Must be able to obtain and ... **MANTECH** seeks a motivated, career and customer-oriented **System Administrator ** to join our Air Force / Space team at **Eglin AFB** . The System … more
    ManTech (01/01/26)
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  • Senior System Administrator

    SAIC (Arlington, VA)
    …of related experience. **Required Clearance and Certificates:** + Active DOD Top Secret clearance; ability to obtain a TS /SCI. + US citizenship. + Active ... SIPR environment. **Position Overview:** + Manage currently supported and subsequent Windows Server Operating Systems on virtual operating environments,… more
    SAIC (12/13/25)
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  • Cleared Systems Administrator

    Colossal Contracting, LLC (Albany, NY)
    Cleared Systems Administrator Albany, NY (http://maps.google.com/maps?q=US+Hwy+Reservation+Atomic+Proj+Ballston+Spa+NY+USA+12020) * Engineering Description ... Colossal Contracting, LLC is looking for Cleared Systems Administrators to support a new team under our...an active DOE Q clearance or an active DOD Top Secret clearance at a minimum. This… more
    Colossal Contracting, LLC (11/12/25)
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  • Network/System Administrator (Net/Sys…

    General Dynamics Information Technology (Colorado Springs, CO)
    …RQ209869 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... Family:** IT Infrastructure and Operations **Skills:** Computer Networking,Microsoft Windows Server,Network Systems ,Troubleshooting **Experience:** 1 + years of… more
    General Dynamics Information Technology (11/04/25)
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