• Linux /Windows Systems

    Lockheed Martin (King Of Prussia, PA)
    …6 months of start\) * CompTIA Linux \+ or Red Hat Certified Systems Administrator Certification * Ability to provide in\-depth monitoring, able to identify ... \(EW\), information operations \(IO\), and 5G\.MIL; while delivering full\-spectrum cyber capabilities and cyber resilient systems...our customers achieve their missions\. The Work: As a Systems Administrator on the ECIW team, you… more
    Lockheed Martin (12/11/25)
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  • LINUX Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** ** Linux Systems Administrator ** **- Active Top Secret Required** Seize ... your opportunity to make a personal impact as a ** Linux ** ** Systems Administrator ** with GDIT. A career in systems administration means connecting and… more
    General Dynamics Information Technology (12/05/25)
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  • Linux Systems Administrator

    Nightwing (Sterling, VA)
    …intelligence community, defense, civil, and commercial markets. Nightwing is seeking a qualified Linux Systems Administrator to work with a close-nit team ... Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and...Develop and maintain backup and disaster recovery plans for Linux systems . + Patch Management: Manage the… more
    Nightwing (11/18/25)
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  • Senior Systems Administrator

    Alaka'ina Foundation Family of Companies (Kauai County, HI)
    …The Alaka`ina Foundation Family of Companies (FOCs) is looking for a Senior Linux Systems Administrator Range Network. The position will support ... Senior Systems Administrator ( Linux ) Location...Senior Systems Administrator ( Linux ) Location HI - Kaua'i...of Trellix, LogRhythm, and MDE. + Experience with DoD systems and infrastructure. + Knowledge in Cyber more
    Alaka'ina Foundation Family of Companies (11/20/25)
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  • Patch and Linux Administrator

    Huntington Ingalls Industries (Fairfax, VA)
    …HII! Where Hard Stuff is Done Right! We are seeking an experienced Patching and Linux Administrator III to join our infrastructure team. This role requires deep ... patches System Administration & Management * Design, implement, and maintain enterprise Linux systems running RHEL and Ubuntu distributions * Administer macOS… more
    Huntington Ingalls Industries (11/14/25)
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  • Linux Systems Administrator

    L3Harris (Greenville, TX)
    …29921 Job Location: Greenville, TX Schedule: 9/80 Job Description: L3Harris is seeking a Linux Systems Administrator to support Mission System integration in ... of the Operating Systems and Mission software, Infrastructure services, and Cyber Security hardening. A solid understanding of Linux administration and… more
    L3Harris (12/10/25)
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  • Linux Systems Administrator

    Huntington Ingalls Industries (Nellis AFB, NV)
    …Who We Are Mission Technologies, a Division of HII, is seeking a Linux Systems Administrator Lead to support a Modeling, Simulation, ... Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment,...You Will Do + Maintain continuous operation of multi-user Linux computer systems to ensure team can… more
    Huntington Ingalls Industries (10/03/25)
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  • Linux Systems Administrator

    JHNA (Patuxent River, MD)
    Patuxent River, MD, USA | Full Time Linux Systems Administrator JHNA is currently seeking a talented Linux Systems Administrator to support our ... Pax River. Roles/Responsibilities: + Installing, configuring and managing the Linux operating systems and related toolsets +...Linux and Windows. + Experience in DoD Information Assurance/ Cyber policy and procedures to include hardening of … more
    JHNA (11/25/25)
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  • Alternate CRO Cyber Systems

    SAIC (Kirtland AFB, NM)
    **Description** SAIC is looking for an experienced **Alternate CRO Cyber Systems Administrator ** with a systems administration background to be an ... alternate CRO for a non-collateral account and a cybersecurity systems administrator implementing and maintaining cyber...Minimum 1 year of proven work experience as a Linux systems administrator , Red Hat-based… more
    SAIC (12/03/25)
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  • Senior Systems Administrator

    Amentum (Waimea, HI)
    …Department of Defense (DoD) environment. This role requires deep technical expertise in Linux systems , leadership in secure system administration, and a strong ... Amentum is seeking a highly experienced Senior Linux System Administrator to oversee and...+ Apply and manage patches and updates across all Linux systems in accordance with DoD and… more
    Amentum (09/24/25)
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  • Linux Systems Administrator

    Huntington Ingalls Industries (Nellis AFB, NV)
    …Who We Are Mission Technologies, a Division of HII, is seeking a Linux Systems Administrator to support a Modeling, Simulation, and ... relevant SAP/SAR Clearance. Preferred Requirements + Experience maintaining Red Hat Enterprise Linux (RHEL) systems , highly desired. + Candidates with an active… more
    Huntington Ingalls Industries (10/08/25)
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  • Linux Systems Administrator

    BCMC (Arlington, VA)
    …and business continuity of the customer mission. Responsibilities: - Serve as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux ... large scale configuration management and deployment across Windows, MacOS, Linux /Unix, and other operating systems and virtual...- 5+ years of directly relevant experience as a Linux System Administrator . - 3+ years of… more
    BCMC (10/16/25)
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  • Senior Linux System Administrator

    BAE Systems (San Diego, CA)
    …BAE Systems . BAE Systems is seeking a Senior Closed Area Linux Systems Administrator to provide comprehensive technical and operational support for ... OU structure, and GPOs. + Install, configure, and maintain Linux -based servers and systems . + Configure, deploy,...years of experience with a degree) as a system administrator in a Linux OS environment. Direct… more
    BAE Systems (09/18/25)
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  • Linux Systems Administrator

    SAIC (Grand Forks, ND)
    **Description** SAIC has an immediate need for a BMC3 ** Systems Administrator Analyst** with Linux full stack development experience. We are looking for an ... a Linux environment. + Experience in a Systems Administrator role with Windows. + Experience... engineering and integration; enterprise IT, including cloud services; cyber ; software; advanced analytics and simulation; and training. We… more
    SAIC (11/15/25)
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  • Linux Systems Administrator

    Epsilon, Inc (Phoenix, AZ)
    …Status Submit a Referral (https://careers-epsilon.icims.com/jobs/3766/ linux - systems - administrator ... shared during your recruiter conversation. **Responsibilities** **An average day:** AsLinux Systems Administrator II, you will support the reliability, security,… more
    Epsilon, Inc (12/03/25)
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  • Senior Linux Systems

    Leidos (Aurora, CO)
    …a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... and make a difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where you'll provide crucial support for the… more
    Leidos (10/09/25)
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  • NCIS Cyber Systems

    General Dynamics Information Technology (Quantico, VA)
    …**US Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a ** Cyber Systems Administrator - SecOps** at GDIT in ... required** **WHAT WE'D LOVE FOR YOU TO HAVE:** + ACAS Management + LINUX Systems Administration Experience (SPLUNK) + Forescout Experience **GDIT IS YOUR… more
    General Dynamics Information Technology (12/08/25)
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  • Cyber Systems Administrator

    Northrop Grumman (Tampa, FL)
    …the best work of your career. We are looking for you to join our team as a ** Cyber Systems Administrator ** based out of **Tampa, FL** . _Please Note:_ + _Due ... end users. + Must be able to configure and manage Linux and Windows operating systems upon start date, installs/loads operating system software, patches, and… more
    Northrop Grumman (10/14/25)
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  • Linux Systems Administrator

    Parsons Corporation (Centreville, VA)
    …your talent and redefine what's possible. **Job Description:** Parsons is seeking a mid-level Linux Systems Administrator . The candidate will support both ... may be accepted in place of a degree + 15+ years experience with Linux operating systems , including installations, maintenance, and troubleshooting + Must be a… more
    Parsons Corporation (12/06/25)
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  • System Administrator - Linux

    Leidos (Annapolis Junction, MD)
    …has a new and exciting opportunity for a **System Administrator - Linux ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... complex equipment/ systems (ex. Network Switches, Routers, LANs, & cabling, Windows/ Linux operating systems , VMware, etc.). + Must have experience installing,… more
    Leidos (11/19/25)
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