• Sr. Linux System Administrator

    RTX Corporation (Andover, MA)
    … and support IT infrastructures around the world. **Senior Linux System Administrator ** internally known as Senior Analyst, Information Workplace Services ... collaborate and support exciting, critical programs with classified information ...infrastructure problems. **What You Will Do:** + Provide Linux systems administration in a heterogeneous Microsoft Windows and Red… more
    RTX Corporation (01/08/26)
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  • Network System Administrator

    ManTech (Los Angeles, CA)
    **MANTECH** seeks a motivated, career and customer-oriented **Network System Administrator ** **III** to join our team in **Los Angeles, CA.** The primary ... FTP, & SSL. + Maintain file servers, Firewalls, network access, Security Monitoring Systems and system documentation as required. + Interface with local… more
    ManTech (12/17/25)
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  • Senior Systems Administrator 10k…

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **Intelligence Sector's (NSS) Cyber & Analytics Business ... much more. **Join us and make a difference in National** **Security!** As a Senior Systems Administrator you will play a vital role in maintaining the efficiency… more
    Leidos (11/15/25)
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  • Sr. Systems Administrator - Secret…

    Lockheed Martin (King Of Prussia, PA)
    …that diminish human error while keeping the operator in the loop\. **The Work** As a Systems Administrator on the JES Program , you will: \-Work in an Kanban ... clearance . CompTIA Security\+ Certification . CompTIA Linux\+ or Red Hat Certified System Administrator Certification . Familiarity with system monitoring… more
    Lockheed Martin (10/29/25)
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  • Citrix Systems Administrator

    Arena Technical Resources, LLC (Eglin, FL)
    Citrix Systems Administrator Location: Eglin, US Job ID: ATR 17802 Job Description Job Title: Citrix Systems Administrator Location: Eglin, AFB ... We are seeking an experienced and proactive Citrix Virtual Desktop & RemoteApp System Administrator to design, deploy, and maintain our Citrix Virtual Apps,… more
    Arena Technical Resources, LLC (01/13/26)
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  • Systems Administrator (GEODSS)…

    Serco (Vandenberg AFB, CA)
    …. In this role, you will: + Perform system administration support for all assigned systems and manage the cybersecurity of the ... **Position Description & Qualifications** **Position Description & Qualifications** Looking for a Systems Administrator opportunity at a place you can make a… more
    Serco (01/15/26)
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  • System Administrator

    Navarro Inc. (Niskayuna, NY)
    …Defense. Naval Nuclear Laboratory's (NNL) Reactor Technology (RT) team is seeking a System Administrator to help ensure the infrastructure needed for developers ... Navarro Research and Engineering is recruiting a System Administratorin Niskayuna, NY. An active DOE Q...team to maintain and develop products and services in support of high quality and secure software development and… more
    Navarro Inc. (12/12/25)
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  • Systems Administrator

    Arena Technical Resources, LLC (Huntsville, AL)
    …requires a DoD Secret Clearance. Skills / Experience Required + The Systems Administrator delivers Tier II IT support to users within PEO Missiles & Space's ... Systems Administrator Location: Huntsville, AL, US...maintenance, account token creation and issue, as well as support of physical and virtual machines. + Responds promptly… more
    Arena Technical Resources, LLC (10/23/25)
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  • Senior System Administrator

    SAIC (Fort Belvoir, VA)
    **Description** The Senior System Administrator will provide support for operational intelligence integration and data-centric operations for customers ... be performed at Ft. Belvoir, VA.** Performs high-level, day-to-day operational maintenance, support , and upgrades for complex operating systems , workstations and… more
    SAIC (11/19/25)
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  • Systems Analyst, BizTalk Integration…

    TECO Energy (Ybor City, FL)
    …Mark E Koener TITLE: Systems Analyst, BizTalk Integration Administrator /Developer, Progression PERFORMANCE COACH: Manager Application Development & ... **Title:** Systems Analyst, BizTalk Integration Administrator /Developer, Progression...applications; implements software packages, integrates applications, and provides 24x7 application support . Collaborates on all phases of… more
    TECO Energy (11/06/25)
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