• Northrop Grumman (Morrisville, NC)
    …a CompTIA Security+ (Sec+) certification within 6 months of start date Experience with Linux administration or related operating systems Experience in an ... detailed below as well as the interview assessment. Requires an active Top - Secret ( TS )/Sensitive Compartmented Information (SCI) clearance [ TS more
    JobLookup XML (01/01/26)
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  • Senior Linux Systems Administrator

    General Dynamics Information Technology (Macdill AFB, FL)
    …**Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT ... Infrastructure and Operations **Skills:** Linux ,RedHat,System Administration **Certifications:** CompTIA Security+ CE |...you advance your career. Join GDIT as a **Senior Linux Systems Administrator** and build an impactful… more
    General Dynamics Information Technology (12/18/25)
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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 (RHEL) ... and equipment in the lab environment. - Providing ongoing systems administration , technical support, upgrades, patching and...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    BCMC (10/16/25)
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  • Linux Systems Administrator

    CACI International (Linthicum, MD)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee ... Linux System Administrator!** Are you passionate about Linux systems and eager to make a...with Polygraph. + **Proven Experience:** 3 years of hands-on Linux system administration experience. + **Versatile Knowledge:**… more
    CACI International (10/18/25)
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  • MSIC - HPC Linux Systems

    COLSA Corporation (Huntsville, AL)
    Join our team as a Linux Systems Administrator, where you will support and manage a diverse mix of workstations, servers, and high-performance computing (HPC) ... for a skilled professional with a solid foundation in Linux administration and a collaborative approach to...to 12 years of related experience + Active DoD Top Secret Clearance with SCI eligibility +… more
    COLSA Corporation (12/31/25)
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  • Principal Linux Systems

    Northrop Grumman (Linthicum Heights, MD)
    …work of your career. Northrop Grumman Classified Solutions is seeking a well-qualified ** Linux Systems Administrator** to join its dynamic team of technical ... be limited to the following: + Perform as primary Linux Systems Administrator for a classified government...system environments + Candidates must have a current DOD ** Top ** ** Secret ** levelsecurity clearance, to include **SCI… more
    Northrop Grumman (11/19/25)
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  • Linux Systems Administrator

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    … Administrator to join our team in Dahlgren, VA. The Linux Systems Administrator is responsible for system administration in a Research, Development, and ... **Overview** ** LINUX SYSTEMS ADMINISTRATOR (RDTE)** Bowhead seeks...to obtain and maintain a security clearance at the Top Secret level. US Citizenship is a… more
    UIC Government Services and the Bowhead Family of Companies (12/19/25)
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  • Sr Principal Linux Systems

    Northrop Grumman (Boulder, CO)
    …include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively ... Office (CIDO) organization is seeking a highly experienced **Senior Linux Server Admin ** to join its dynamic...with Certification & Accreditation process and STIGs + Active Top Secret is preferred We offer flexible… more
    Northrop Grumman (12/12/25)
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  • Linux Systems Engineer

    William C Brown Inc (Springfield, VA)
    TS / SCI Clearance and eligibility to obtain a Poly. REQUIRED SKILLS: Linux systems administration DESIRED SKILLS: A deep expertise in one of ... any other characteristic protected by law. Description Our work depends on a TS /SCI cleared Linux Systems Engineer joining our team to support our customer… more
    William C Brown Inc (12/25/25)
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  • Linux Systems Administrator

    Huntington Ingalls Industries (Nellis AFB, NV)
    Linux (RHEL) systems , highly desired. + Candidates with an active TS /SCI clearance, highly desired. + Certifications: Linux + and Security+, desired. + ... Type: Full Time/Salaried/Exempt Anticipated Salary Range: $100,000.00 - $140,000.00 Security Clearance: Top Secret Level of Experience: Mid Meet HII's Mission… more
    Huntington Ingalls Industries (10/08/25)
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  • Technical Engagement Network (TEN) Lab Manager/…

    BCMC (Arlington, VA)
    …are seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and deployment of ... and equipment in the lab environment. - Providing ongoing systems administration , technical support, upgrades, patching and...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    BCMC (11/21/25)
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  • Linux Systems and Network Engineer

    Nightwing (Sterling, VA)
    …remote network tunnels. + **Firewall Rules and System Hardening:** Experience in hardening Linux systems and services, as well as writing firewall rulesets using ... internal program managers and government customers. **Required Skills & Experience** + ** Linux System Administration and Networking:** Proven expertise in … more
    Nightwing (11/21/25)
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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: ... citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the...You Will Do:** + Provide IT systems administration in a heterogeneous Redhat Enterprise Linux more
    RTX Corporation (12/05/25)
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  • Senior Linux Systems Administrator…

    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 & ... : Bachelor's degree plus eleven (11) to fifteen (15) years of relevant systems administration experience or equivalent. + **Security Clearance** : Candidates… more
    Leidos (10/09/25)
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  • Linux / AWS Systems Administrator…

    Northrop Grumman (Morrisville, NC)
    …Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator** to join its dynamic team of technical ... limited to the following:** + Serve as a senior Linux Systems Administrator within an AWS cloud...system environments. + Candidates must have a current DoD ** Top Secret /SCI** level security clearance to include… more
    Northrop Grumman (11/15/25)
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  • Linux /Windows Systems Administrator…

    COMSO, Inc (Columbia, MD)
    Linux /Windows Systems Administrator II ( TS /SCI w/ Polygraph) Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Job Type Full-time ... OS installation, baseline configuration, and service enablement. + Perform light Linux administration (primarily Red Hat), including scripting and… more
    COMSO, Inc (11/27/25)
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  • Senior Linux /Unix Systems

    SMX (Dahlgren, VA)
    …Required: Secret + Must be able to obtain and maintain Top Secret + 6+ years' experience administering Linux /Unix systems and networks + Experience ... in Dahlgren, VA. Essential Duties & Responsibilities include thedaily administration of Linux /Unix systems and...Secret clearance with ability to obtain and maintain Top Secret clearance + Networking protocols +… more
    SMX (12/04/25)
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  • Senior Systems Administrator ( Linux

    Alaka'ina Foundation Family of Companies (Kauai County, HI)
    …(DoD) environment. This role requires deep technical expertise in Linux systems , leadership in secure system administration , and a strong working knowledge ... Family of Companies (FOCs) is looking for a Senior Linux Systems Administrator Range Network. The position...AND CLEARANCE: + Must be a US Citizen + Top Secret security clearance is required with… more
    Alaka'ina Foundation Family of Companies (11/20/25)
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  • Senior Systems Administrator ( Linux

    Amentum (Waimea, HI)
    …(DoD) environment. This role requires deep technical expertise in Linux systems , leadership in secure system administration , and a strong working knowledge ... + Apply and manage patches and updates across all Linux systems in accordance with DoD and...+ Red Hat Certified System Administrator (RHCSA) **Security Clearance** Top Secret security clearance is required with… more
    Amentum (12/24/25)
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  • Systems Administrator ( Linux )

    RTX Corporation (Mckinney, TX)
    …solutions for the global aerospace and defense industry. We are currently seeking a Linux Systems Administrator that will be working onsite in a highly ... requirements within 6 months of start date. **Qualifications We Prefer:** + An active DoD Top Secret clearance + Scanning using tools such as Nessus and SCAP +… more
    RTX Corporation (12/02/25)
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