• Senior Information Systems

    Concurrent Technologies Corporation (Huntsville, AL)
    Senior Information Systems Administrator Concurrent Technologies Corporation Huntsville, AL Minimum Clearance Required: Top Secret Clearance Clearance Level Must ... powerful solutions. CTC is looking for talented Senior Information System Administrator with experience accrediting, maintaining, and ensuring cyber security for… more
    Concurrent Technologies Corporation (10/19/25)
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  • Systems Administrator

    Koniag Government Services (Washington, DC)
    **Koniag Management Solutions,** a Koniag Government Services company, is seeking a Systems Administrator with a Top-Secret clearance with the ability to obtain ... Management Solutions, a Koniag Government Services company, is seeking an experienced Systems Administrator to support our government client. The ideal candidate… more
    Koniag Government Services (10/01/25)
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  • Systems Administrator - Mid-Career

    Lockheed Martin (Moorestown, NJ)
    …values integrity and excellence\. **THE WORK** We are seeking an experienced Linux Systems Administrator to install, configure, maintain, and secure our Linux ... **Description:** **WHAT WE'RE DOING** At Lockheed Martin Rotary and Mission Systems , we're on a mission to drive innovation and uphold the highest standards of… more
    Lockheed Martin (10/11/25)
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  • M365 Systems Administrator

    SAIC (Washington, DC)
    …**SAIC** is currently seeking a dedicated and meticulous **Office 365 System Administrator ** to join our team in Washington DC The ideal candidate will ... system enhancements, and supporting Microsoft Exchange in a highly secure, classified environment. **Key Responsibilities:** + Provision new user accounts and… more
    SAIC (11/21/25)
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  • Senior Systems Administrator (Linux)

    Amentum (Waimea, HI)
    Amentum is seeking a highly experienced Senior Linux System Administrator to oversee and manage enterprise-level Linux infrastructure in support of US Navy ... Defense (DoD) environment. This role requires deep technical expertise in Linux systems , leadership in secure system administration, and a strong working knowledge… more
    Amentum (09/24/25)
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  • Systems Administrator / Flight…

    Lockheed Martin (Nellis Air Force Base, NV)
    …to our customers around the world\. **THE WORK** Lockheed Martin is seeking a Systems Administrator to support Modeling, Simulation, and Training at the Joint ... performance within the Joint Simulation Environment \(JSE\) at JITTC\-N\. The Systems Administrator will maintain continuous operation of multi\-user computer… more
    Lockheed Martin (11/05/25)
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  • Network/ Systems Administrator

    Argonne National Laboratory (Lemont, IL)
    …has an opportunity to serve as the System Administrator of the classified National Security Systems (NSS) for the Security Programs Facility (SPF). Develop, ... division related applications. Design, configure, implement, and maintain the secure operating systems , networks, and applications for the SPF classified NSS.… more
    Argonne National Laboratory (11/22/25)
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  • Systems Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Keyport, WA)
    Systems Administrator The Opportunity: Your combination of people skills and system administrator knowledge makes you the team hero, solving one problem ... the supervisor on performance management and personnel administration functions. As a Systems Administrator on our team, you'll help lead troubleshooting… more
    BOOZ, ALLEN & HAMILTON, INC. (11/28/25)
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  • Sr. Principal Windows/VMware Systems

    Northrop Grumman (Baltimore, MD)
    …work of your career. Northrop Grumman Mission Systems is seeking a Windows Systems Administrator to join its Classified Solutions team in Linthicum, MD. ... limited to the following: + Perform as a SWindows/VMware systems administrator . + Experience operating under and...+ Maintain security audit and logging information on all classified networked and standalone computers as directed by the… more
    Northrop Grumman (11/01/25)
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  • Systems Administrator (Level 2 or 3)

    Northrop Grumman (Aurora, CO)
    …making history. Northrop Grumman Space Systems (NGSP) seeks to fill a ** Systems Administrator (Level 2 or 3)** supporting the Integrated National Systems ... Duties:** + Perform as a Linux and Windows System Administrator and able to build these environments from scratch....classified environment + Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF,… more
    Northrop Grumman (11/06/25)
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