• Senior Linux Systems

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... more about how this program "Delivers Mission Success!" Seeking a motivated and experienced Linux System Administrator for a small, diverseteam that provides… more
    Leidos (10/09/25)
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  • Linux System Administrator

    RTX Corporation (Woburn, MA)
    …meaningful problems that create a safer, more secure world. Raytheon is currently seeking a Linux System Administrator to support the Sea Based X-Band Radar, ... System software and hardware to include operating systems experience, (Windows, Red Hat Enterprise Linux ,...short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it… more
    RTX Corporation (11/19/25)
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  • Senior Linux Administrator Team Lead

    General Dynamics Information Technology (Falls Church, VA)
    …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** **HOW A LINUX SYSTEM ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide ... **Req ID:** RQ209314 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Secret **Public...system administration support for Linux operating systems including installing software, applying… more
    General Dynamics Information Technology (10/25/25)
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  • Sr. Linux Systems

    RTX Corporation (Richardson, TX)
    …be supporting a Raytheon program in a classified environment as a **Sr. Linux System Administrator ** . Responsibilities include building, maintaining, and ... We support critical programs with unclassified, classified, and proprietary information system capabilities and create end-to-end solutions to solve complex digital… more
    RTX Corporation (11/19/25)
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  • Linux Systems Administrator

    Arena Technical Resources, LLC (St. Louis, MO)
    Linux Systems Administrator Location: St. Louis, MO, US Job ID: ATR 17232 Job Description We are looking for a talented TS/SCI cleared Red Hat Data Center / ... Systems Administrator in St. Louis, MO to...(not just familiarity) RedHat or some other variance of Linux - Must be able to troubleshoot users' problems… more
    Arena Technical Resources, LLC (10/06/25)
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  • Quality Assurance Linux

    Assertive Professionals (Hanover, MD)
    …in the resolution process. Configures and manages LINUX operating systems and installs/loads operating system software, troubleshoots, maintains integrity ... Quality Assurance Linux Administrator About the Organization Established...involved in the resolution process + Configures and manages LINUX operating system and installs + Creates… more
    Assertive Professionals (09/25/25)
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  • Field Engineer/ Linux Systems

    Huntington Ingalls Industries (Columbia, MD)
    …during the interview process. Job Description Enlighten is looking for a Field Engineer/ Linux Systems Administrator to support operational systems ... well. + At least 9 years of experience in Linux Systems Administration with Bachelors in related...systems and applications. + Experience leveraging a ticketing system for support requests (JIRA, ServiceNow, etc.) + Must… more
    Huntington Ingalls Industries (11/06/25)
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  • Principal Linux Administrator

    RTX Corporation (Mckinney, TX)
    …hardware, operating systems , and software. + Perform software upgrades, patching, and system maintenance on Linux systems . + Troubleshoot issues and ... Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized... system maintenance, installations, upgrades, and backups on Linux systems . + Team-oriented with strong collaboration… more
    RTX Corporation (11/19/25)
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  • Linux Systems Administrator

    Lockheed Martin (Sunnyvale, CA)
    …and more than 570 facilities that span more than 70 countries\. We are hiring a Linux System Administrator , Sr to support daily IT operations in our ... In this position, the chosen candidate will utilize their system administration skills as primary IT support for a...for a classified environment, with a focus on our Linux environment\. Priority consideration will be given to qualified… more
    Lockheed Martin (11/20/25)
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  • Principal Linux Systems

    RTX Corporation (El Segundo, CA)
    …meaningful problems that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many ... teams to support fast-paced, critical programs with classified information system capabilities. Success in this role means you can...for a security clearance. + Must have experience with Linux systems administration + Experience with one… more
    RTX Corporation (09/09/25)
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