• System Administrator

    General Dynamics Information Technology (Annapolis Junction, MD)
    …process. Configures and manages UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, implementing operating ... Provide configuration management, implementation, and sustainment of compliance with applicable system security controls. + Perform periodic vulnerability scans… more
    General Dynamics Information Technology (01/14/26)
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  • TS/SCI Systems Administrator

    Insight Global (Dayton, OH)
    Job Description An employer in the Dayton, OH area is seeking a TS/SCI Systems Administrator for a contract to hire opportunity. This individual will be ... the DevOps platform that support, backup and restore the security . Will be required to sit on base or...Bachelor's Degree (STEM degree) 4+ years of experience with Systems Administration Experience working with Linux Operating… more
    Insight Global (01/09/26)
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  • Advisory Systems Administrator

    Frontier Technology Inc. (Los Angeles, CA)
    …+ Apply and maintain STIGs across operating systems to ensure baseline security compliance; manage and verify hardened system backups for rapid recovery. + ... learn more about you. We are hiring an Advisory System Administrator to support one of our...High school diploma or equivalent. + 10+ years of System Administration experience. + CompTIA Security +~OR~CompTIA Cloud… more
    Frontier Technology Inc. (12/18/25)
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  • Systems Administrator

    Leidos (Piketon, OH)
    **Description** Leidos has an exciting and rewarding opportunity for a Systems Administrator to work independently with minimal supervision providing systems ... Must have strong interpersonal skills. + Experience with Microsoft Windows and Server Operating Systems and/or Oracle, RHEL and Linux Operating Systems . +… more
    Leidos (12/12/25)
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  • Senior Principal System…

    RTX Corporation (Tucson, AZ)
    …and innovate for customer success. We create leading-edge technology solutions to prevent security threats, secure the integrity of our systems and support IT ... infrastructures around the world. **Sr. Principal System Administrators,** internally known as Sr. Principal Analyst, infrastructure...required, as only US citizens are eligible for a security clearance. + Experience with Linux and… more
    RTX Corporation (01/15/26)
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  • Geospatial Systems Administrator

    CACI International (Fort Bragg, NC)
    Geospatial Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular ... security 4.5.2 protocols and patches, the monitoring of system health and loading, and the administration of multiple...systems , hardware, and software required for MS and LINUX operating systems + At least 2… more
    CACI International (10/28/25)
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  • Systems Administrator (Tier 2…

    Chenega Corporation (Washington, DC)
    Systems Administrator (Tier 2 Support - ServiceNow) Washington, DC Join our Talent Network Systems Administrator (Tier 2 Support - ServiceNow) ... career to the next level! Chenega Agile Realtime Solutions (CARS) is seeking a Systems Administrator (Tier 2 Support - ServiceNow) to provide technical support… more
    Chenega Corporation (12/11/25)
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  • System Administrator

    SAIC (Fort Gordon, GA)
    **Description** SAIC is currently hiring a ** System Administrator ** to support the INSCOM Military Intelligence Brigade (MIB) in Fort Gordon, GA. **Job ... Level I/II sustainment of INSCOM CI, as well as System Administration for Windows, Linux , and Solaris...and Solaris administration and other application expertise on emerging systems + Provide support to the underlying system… more
    SAIC (12/19/25)
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  • Systems Administrator

    MIT Lincoln Laboratory (Lexington, MA)
    …national challenges. Job Description Group 99 seeks an IT Systems Administrator to support Windows, Mac, and Linux environments across classified and ... Key responsibilities include: + Providing onsite support for Windows, Linux , and Mac systems across secure and...end-users + Maintaining compliance of IA and IT related security measures aligned with both government and lab policies… more
    MIT Lincoln Laboratory (01/16/26)
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  • Systems Administrator

    TEKsystems (Fort Wayne, IN)
    … linux , ivanti, patch management, sccm, powershell, vulnerability management, System administrator , Active directory, Azure, Infrastructure, Automation Job ... Seeking a Systems Administrator for a client in...Skills' 1. Deployment of hardened/secured Windows and Red Hat Linux servers. 2. Ivanti Security Controls or… more
    TEKsystems (01/14/26)
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