• 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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  • Senior Linux Systems

    General Dynamics Information Technology (Macdill AFB, FL)
    …how our customers operate while you advance your career. Join GDIT as a **Senior Linux Systems Administrator ** and build an impactful career in enterprise ... you. MEANINGFUL WORK AND PERSONAL IMPACT As a **Senior Linux Systems Administrator ** , the...worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we… more
    General Dynamics Information Technology (12/18/25)
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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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  • 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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  • 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 (01/02/26)
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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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  • 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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  • 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 (12/24/25)
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  • Linux Systems Administrator

    Parsons Corporation (Centreville, VA)
    …Unleash your talent and redefine what's possible. **Job Description:** Are you a skilled ** Linux Systems Administrator ** looking to work on mission-critical ... systems in a dynamic environment? Parsons is seeking a mid-level Linux Systems Administrator to support Linux -based workstations and servers in both… more
    Parsons Corporation (12/20/25)
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  • Linux Systems Administrator

    Parsons Corporation (Centreville, VA)
    …Unleash your talent and redefine what's possible. **Job Description:** Are you a skilled ** Linux Systems Administrator ** looking for an opportunity to work ... on mission-critical systems ? Parsons is seeking a mid-level Linux Systems Administrator to support both Linux -based workstations and servers in… more
    Parsons Corporation (12/20/25)
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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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  • 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 (12/19/25)
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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 (Elkridge, MD)
    …best work of your career. We are looking for you to join our team as a ** Cyber Systems Administrator ** based out of **Elkridge, MD** . _Please Note: Due to ... 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 (01/01/26)
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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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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …Nightwing is seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and ... Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and...- 5+ years of directly relevant experience as a Linux System Administrator . - 2+ years MacOS… more
    Nightwing (11/26/25)
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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 ... be accepted in place of a degree + 3+ years experience with Linux operating systems , including installations, maintenance, and troubleshooting + Experience in… more
    Parsons Corporation (10/18/25)
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  • Modernization Cyber Systems

    Lockheed Martin (Hanover, MD)
    Linux distributions such as RHEL, CentOS, Ubuntu, and Debian\. Knowledge of Linux systems processes, file systems , networking and offline repository ... **Description:** **The Work:** We are seeking professionals interested in Systems Administration\. * Here, you are going to provide...whim of contract changes\. **What We're Doing:** Lockheed Martin, Cyber & Intelligence invites you to step up to… more
    Lockheed Martin (10/10/25)
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