• Sr. Linux /Unix Administrator

    S4 Inc. (Omaha, NE)
    …including development, testing, and production environments. Specific Duties: + Perform system administration for enterprise Linux /Unix OS solutions. ... Systems Administrator Overview: S4 Inc. has a Sr. Linux /Unix System Administrator position available who will...CompTIA Linux +; or Oracle Certified Professional Oracle Linux System Administrator; or Red Hat Certified… more
    S4 Inc. (10/08/25)
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  • Principal Linux Administrator (Onsite…

    RTX Corporation (Mckinney, TX)
    …across multiple sites. This role is ideal for candidates with specialized expertise in Linux system administration , a commitment to collaboration, and the ... systems , and software. + Perform software upgrades, patching, and system maintenance on Linux systems . + Troubleshoot issues and apply security policies… more
    RTX Corporation (11/19/25)
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  • Principal Linux Systems

    RTX Corporation (El Segundo, CA)
    …only US citizens are eligible for a security clearance. + Must have experience with Linux systems administration + Experience with one of the following: ... infrastructure problems. **What You Will Do:** + Provide IT systems administration in a heterogeneous Redhat Enterprise Linux and Microsoft Windows… more
    RTX Corporation (09/09/25)
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  • Sr. Linux Systems Administrator

    RTX Corporation (Richardson, TX)
    …supporting a Raytheon program in a classified environment as a **Sr. Linux System Administrator** . Responsibilities include building, maintaining, and securing ... of VMware (ESXi and vCenter) **Qualifications We Prefer:** + Deployment and administration of systems in Amazon Web Services (AWS)/Commercial Cloud Services… more
    RTX Corporation (11/19/25)
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  • Linux System Architect

    Huntington Ingalls Industries (Dayton, OH)
    …3+ years of experience with cloud environment + 7+ years of experience with Linux and Windows Server administration + [Desired] Cloud certifications + [Desired] ... Secret Level of Experience: Senior This opportunity resides with Warfare Systems (WS), a business group within HII's Mission Technologies division. Warfare… more
    Huntington Ingalls Industries (11/17/25)
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  • Systems Administrator II - Linux

    TEKsystems (Corona, CA)
    …monitoring) - Develop and maintain standard operating procedures for all routine systems administration functions to ensure security requirements and operational ... Experience Desired: - More than 5 years of experience in managing and troubleshooting Linux operating systems , especially SUSE Linux . - Computer Skills… more
    TEKsystems (11/16/25)
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  • Field Engineer/ Linux Systems

    Huntington Ingalls Industries (Columbia, MD)
    …with a TS+ level clearance as well. + At least 9 years of experience in Linux Systems Administration with Bachelors in related field; 7 years relevant ... during the interview process. Job Description Enlighten is looking for a Field Engineer/ Linux Systems Administrator to support operational systems at… more
    Huntington Ingalls Industries (11/06/25)
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  • Linux Site Reliability Engineer

    SpaceX (Cape Canaveral, FL)
    …sidecars). + Experience implementing proactive alert/monitoring workflows and dashboards for Linux systems and Kubernetes deployments using Prometheus, Grafana, ... Linux Site Reliability Engineer Cape Canaveral, FL Apply...engineering teams. Build highly resilient, high-performance, scalable, and robust systems . + Exercise a high degree of personal responsibility… more
    SpaceX (11/11/25)
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  • Linux OS Developer

    CACI International (VA)
    …Candidates should be comfortable with all aspects of RHEL, including system administration (systemd), package management (RPMs), and security configurations ... develop functional and non-functional requirements. Develop on and for immutable operating systems . **More About the Role** As a Linux Engineer/Developer, you… more
    CACI International (10/28/25)
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  • Linux System Administrator

    ManTech (Fort Meade, MD)
    …of hardware and software in support of developing and testing of information technology systems . + Heavy Linux administration experience. + Experience using ... internal servers adding scalability while circumventing manual process for new operating system rollout. + Configure host-based intrusion detection systems . +… more
    ManTech (11/19/25)
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