• Principal Linux Systems…

    RTX Corporation (Aurora, CO)
    …program in a classified environment as a **Principal Linux System Administrator in Aurora, CO.** Responsibilities include building, maintaining, and securing ... Information Technology systems and directly supporting customer mission-critical capabilities. + You...vCenter). **Qualifications We Prefer:** + Deployment and administration of systems in Amazon Web Services (AWS)/Commercial Cloud Services (C2S).… more
    RTX Corporation (12/29/25)
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  • Systems Administrator - Junior…

    Amentum (Dahlgren, VA)
    …Technicians (IAT) Level 2 or higher under specialty area 45 - System Administrator with certification in current Operating Systems and Information Security. This ... Dahlgren, VA. You will be part of our growing systems & software engineering team and contribute to our...your skills to the latest DoD weapons and sensor systems , modernizing the Navy and contributing to mission success.… more
    Amentum (12/16/25)
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  • System Administrator Associate_TS/SCI…

    General Dynamics Information Technology (Aurora, CO)
    …Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a Systems Administrator Associate with GDIT. A career in enterprise IT ... improving how agencies operate. At GDIT, people are our differentiator. As a Systems Administrator Associate you will help ensure today is safe and tomorrow is… more
    General Dynamics Information Technology (10/31/25)
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  • Systems Administrator , Windows

    RTX Corporation (Tewksbury, MA)
    …complex IT infrastructure problems._ **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux ... scope and complexity to include the integration of hardware and operating systems (OS). + Work with Cybersecurity professionals to maintain security requirements. +… more
    RTX Corporation (12/29/25)
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  • Network/ Systems Administrator

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

    SAIC (Washington, DC)
    **Description** SAIC is hiring for a Sr System Administrator who specializes in Mac Systems to manage and support our Mac-based enterprise IT environment. The ... + Must have 10+ years relevant experience in Mac Systems administration. + Must be able to pass a...or Python. + Knowledge of Mac OS desktop operating systems . + Skill in working in collaborative team-based environments… more
    SAIC (10/21/25)
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  • Systems Administrator

    ManTech (Fort Meade, MD)
    **MANTECH** seeks an experienced and passionate, career and customer-oriented **System Administrator ** to join our team in **Ft. Meade, MD.** **Responsibilities ... but are not limited to:** + Creating and managing virtual environments + Systems administration of hardware and software in support of maintenance, developing and… more
    ManTech (12/31/25)
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  • Systems Administrator

    ManTech (Fort Meade, MD)
    **MANTECH** seeks an experienced and passionate, career and customer-oriented **System Administrator ** to join our team in Ft. Meade, MD. **Responsibilities include ... but are not limited to:** + Creating and managing virtual environments + Systems administration of hardware and software in support of maintenance, developing and… more
    ManTech (12/28/25)
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  • Systems Administrator

    SAIC (Washington, DC)
    **Description** SAIC, a leading provider of systems engineering & integration, systems development & deployment, intelligence analysis and targeting, and ... an anticipated decision expected by fall 2025.** The System Administrator responsibilities include, but are not limited to: +...and maintain the infrastructure that powers networks and operating systems such as UNIX, Linux, and Windows. + Install… more
    SAIC (12/06/25)
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  • Unix/Linux Systems Administrator…

    Carnegie Mellon University (Pittsburgh, PA)
    …department within the School of Computer Science seeks a UNIX/Linux System Administrator with experience in DevOps practices to contribute your experience to ... role, you will support desktops, project servers, and high-performance computing systems , ensuring reliability and scalability across diverse environments. This role… more
    Carnegie Mellon University (10/09/25)
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