• 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

    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 ... in a dynamic environment? Parsons is seeking a mid-level Linux Systems Administrator to support...networking equipment rack installations. **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is… 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:** Parsons is seeking a Linux Systems Administrator . The candidate will support both ... server and networking equipment rack installations **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required for… more
    Parsons Corporation (01/08/26)
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  • Senior Linux /Unix Systems

    SMX (Dahlgren, VA)
    Senior Linux /Unix Systems Administrator (4411)at...be able to obtain and maintain Top Secret + 6+ years' experience administering Linux /Unix ... Center Dahlgren Division (NSWCDD) in Dahlgren, VA. The Senior Systems Administrator will work as part of...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 (Unix/…

    EPS Corporation (Dahlgren, VA)
    Senior Systems Administrator (Unix/ Linux ) - (758) Share this job as a link in your status update to LinkedIn. Job Title Senior Systems Administrator ... Technology Job Description EPS Corporation is seeking a highly skilledSenior Systems Administrator (Unix/ Linux )to support enterprise-level networks and… more
    EPS Corporation (11/13/25)
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  • Linux Engineer

    Arena Technical Resources, LLC (Chantilly, VA)
    …17717 Job Description Job Title: Linux Engineer Location: Chantilly, VA Eligibility: Top Secret /SCI clearance with current CI Polygraph required The ... Systems Engineering team is seeking a driven Senior Linux /UNIX Systems Administrator that is...- Experience writing detailed, technical documentation -8570 Compliance -Active TS /SCI + CI Poly - Ability to respond to… more
    Arena Technical Resources, LLC (11/29/25)
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  • Linux Administrator

    CACI International (Chantilly, VA)
    …* Knowledge of Identity and Access Management (IAM) and integration with Linux systems . * Red Hat Certified System Administrator (RHCSA) or Red Hat Certified ... Linux Administrator Job Category: Information Technology...with RMF (Risk Management Framework). Required Qualifications * Active Top Secret clearance (SCI eligibility strongly preferred).… more
    CACI International (11/13/25)
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  • Systems Engineer/Developer ( TS /SCI…

    General Dynamics Information Technology (Chantilly, VA)
    …flows and analyzing data failure conditions + Extensive experience as a Linux Systems Administrator , preferably RHEL/CentOS (installation, configuration, ... RQ212148 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job… more
    General Dynamics Information Technology (01/02/26)
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  • System Administrator - Linux

    The Metamorphosis Group (Chantilly, VA)
    System Administrator - LINUX - TS /SCI FSP REQUIRED Chantilly, VA Apply Now Job Description The Metamorphosis Group, Inc, TMG, has an immediate opening for a ... Linux System Administrator , who shall be responsible...system monitoring. MUST BE US CITIZEN MUST HAVE ACTIVE TS /SCI with FSP US Veterans Preferred **ABSOLUTELY NO THRID… more
    The Metamorphosis Group (12/10/25)
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  • NCIS Cyber Systems Administrator

    General Dynamics Information Technology (Quantico, VA)
    …**Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT ... **Job Description:** Transform technology into opportunity as a **Cyber Systems Administrator - SecOps** at GDIT in...NEED TO SUCCEED (Required):** + **Security Clearance Level:** Active Top Secret clearance with SCI eligibility. +… more
    General Dynamics Information Technology (12/08/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …but there are also Linux distributions as well. + The Senior Systems Administrator II shall support the mid-level internal escalation tier(s) for the ... respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server...required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to… more
    V2X (11/15/25)
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  • Systems Administrator - TS

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking an experienced ** Systems Administrator ** to join our team in supporting mission-critical IT infrastructure. This role is ideal ... of a degree. + US Citizen with an active TS /SCI with Poly security clearance. + Proven experience in.../SCI with Poly security clearance. + Proven experience in systems administration for Windows and/or Linux environments.… more
    Leidos (01/01/26)
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  • Linux Sys Admin - TS /SCI CI Poly

    Insight Global (Springfield, VA)
    Job Description Seeking a Systems Administrator to join a high-performing team at the heart of an important US government function which helps the nation meet ... national security strategy. This is for an on-site system administrator sustaining and maintaining a VM-based data system supporting...DoD 8570 certification or higher. * System administration across Linux systems . * Ability to work in… more
    Insight Global (01/07/26)
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  • Security Control Assessor - active TS /SCI…

    V2X (Springfield, VA)
    …location. The position is required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to obtain and maintain a ... We are hiring a Security Control Assessor - active TS /SCI clearance to support our government customer based in...The position requires US Citizenship and an active DoD Top Secret with SCI clearance and the… more
    V2X (11/21/25)
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  • Security Control Assessor (SCA) ( TS /SCI)

    Tau Six (Chantilly, VA)
    …networking, and cybersecurity tools, techniques, and tactics. Clearance Required: US Government Top Secret / SCI Responsibilities: The Security Control Assessor ... market. We are seeking a motivated self-starter with experience in secure information systems to join a team of security professionals and help defend national… more
    Tau Six (10/22/25)
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  • OCONUS Field Engineer - TS /SCI Polygraph…

    Leidos (Chantilly, VA)
    …team environment. The ideal candidate will have prior experience as either a systems engineer or systems administrator . Prior OCONUS experience and ... **All candidates for consideration, must possess an active and in-scope TS /SCI Polygraph.** **Basic Qualifications:** + Bachelor's degree and 8+ years' experience;… more
    Leidos (11/07/25)
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  • Linux Administrator - ACAS

    CACI International (Springfield, VA)
    Linux Administrator - ACAS Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular ... the NGA mission. In this role, we're seeking a ** Linux Administrator - ACAS** who could potentially...vendor updates are received **You'll Bring These Qualifications** + Top Secret /SCI clearance (current), with the ability… more
    CACI International (11/10/25)
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  • Linux System Administrator with CI…

    Parsons Corporation (Centreville, VA)
    …of deployed systems . This role includes system design, configuration, and debugging of Linux systems . Note: this is a full time in-office role. **What You'll ... redefine what's possible. **Job Description:** Our Special Programs and Systems team is hiring Linux System Administrators...be a US Citizen + Must possess and maintain Top Secret SCI clearance with CI poly… more
    Parsons Corporation (11/21/25)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    **Description** The DTRA program at Leidos is seeking a **Senior Linux Administrator ** in Fort Belvoir, VA to support the DTRA I3TS Infrastructure Services team ... from design through development to production, building and deploying Linux based systems in a virtual environment....on-site as needed in Reston, VA._** **Required Clearance:** Active Top Secret with SCI **Key Responsibilities:** +… more
    Leidos (12/30/25)
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  • Systems Administrator

    General Dynamics Information Technology (Springfield, VA)
    …RQ206899 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... and tomorrow is smarter. Our work depends on a ** Systems Administrators** with Linux and Windows Infrastructure...SYSTEMS ADMINISTRATORS** WILL MAKE AN IMPACT As the Systems Administrator on this contract, you will… more
    General Dynamics Information Technology (12/06/25)
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