• Senior Linux System…

    ManTech (Fort Meade, MD)
    Mantech seeks a motivated, career and customer-oriented **Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will ... capacity analysis and planning. + Configure and manage Linux operating systems ; install and maintain OS software; implement system enhancements to improve… more
    ManTech (09/20/25)
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  • Sr. Principal Linux System…

    RTX Corporation (Aurora, CO)
    …supporting a Raytheon program in a classified environment as a Senior Principal Linux System Administrator . + Responsibilities include building, maintaining, ... , GICSP, GSEC, SSCP, CySA+, CND. + Experience administering Red Hat Enterprise Linux (RHEL) based systems + Experience using and developing automation… more
    RTX Corporation (07/19/25)
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  • Linux System Administrator

    Insight Global (Portsmouth, RI)
    Job Description As a System Administrator supporting the Radar Digital Product Line for one of our large defense companies, you'll be responsible for delivering ... IT services and security compliance across Linux (primarily Red Hat)...and Requirements - 6+ years of experience as a System Administrator in a DoD environment. -… more
    Insight Global (09/16/25)
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  • Linux System Administrator…

    Parsons Corporation (Centreville, VA)
    …right now. We've got what you're looking for. **Job Description:** Our Special Programs and Systems team is hiring Linux System Administrators with a passion ... includes system design, configuration, and debugging of Linux systems . Note: this is a full...JavaScript, or C++ programming or quality assurance (QA) experience ** Security Clearance Requirement:** An active Top Secret SCI w/Polygraph… more
    Parsons Corporation (08/23/25)
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  • Unix/ Linux Administrator

    Leader Communications Inc. (Portsmouth, VA)
    Position Summary The Unix/ Linux Administrator will play a key role in administering and securing enterprise Unix/ Linux systems , ensuring compliance with ... teams in a high-tempo environment. Duties & Responsibilities + Administer and maintain Unix/ Linux systems (Red Hat, CentOS, SUSE, Ubuntu, Solaris, AIX). +… more
    Leader Communications Inc. (09/23/25)
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  • Principal Linux System…

    RTX Corporation (Tewksbury, MA)
    …and innovate for customer success. We create leading-edge technology solutions to prevent security threats, secure the integrity of our systems and support IT ... complex IT infrastructure problems. **Responsibilities to** **Anticipate** : .Provide IT systems administration in a heterogeneous Redhat Enterprise Linux ,… more
    RTX Corporation (08/15/25)
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  • Principal Linux Systems…

    RTX Corporation (El Segundo, CA)
    …are eligible for a security clearance. + Must have experience with Linux systems administration + Experience with one of the following: Solaris, Windows, ... meaningful problems that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many… more
    RTX Corporation (09/09/25)
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  • Linux System Administrator

    ManTech (Fort Meade, MD)
    **ManTech** seeks an experienced and passionate, career and customer-oriented ** Linux System Administrator ** to join our team located in the Fort Meade, MD ... adding scalability while circumventing manual process for new operating system rollout. + Configure host-based intrusion detection systems...IPA replacing human error and manual process + Analyze system and security logs while responding to… more
    ManTech (09/04/25)
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  • Swdc MSS Linux Systems…

    Northrop Grumman (Colorado Springs, CO)
    …team on the Specialized Warfighter Development Contract (SWDC) program as a Principal Systems Administrator based out of Schriever SFB, CO. This is an ... not available. What You'll get to Do: The Principal Systems Administrator primary duties include installing, troubleshooting,...degree * Experience administering and configuring Red Hat Enterprise Linux * Must have CompTIA Security + with… more
    Northrop Grumman (08/30/25)
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  • Linux Systems Administrator

    Arena Technical Resources, LLC (St. Louis, MO)
    Linux Systems Administrator Location: St....- Must be able to research findings identified by security scans and patching systems . - Must be ... a talented TS/SCI cleared Red Hat Data Center / Systems Administrator in St. Louis, MO to...maintaining, securing, and enhancing aR&D testbed network/environment across multiple security domains. Our team is made up of cloud… more
    Arena Technical Resources, LLC (08/30/25)
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