• 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... 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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  • Linux Administrator

    CACI International (Chantilly, VA)
    …(IAM) and integration with Linux systems . * Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification. * ITIL, ... 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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  • 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 ... on-site as needed in Reston, VA._** **Required Clearance:** Active Top Secret with SCI **Key Responsibilities:** +...required + Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred) Come break things… more
    Leidos (12/30/25)
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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 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:** 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:** 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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  • Linux System Administrator

    Nightwing (Sterling, VA)
    …community, defense, civil, and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program in the Sterling VA ... location. The qualified Systems Administrator will support a very dynamic...requirements + Experience with administering and managing user and system accounts on Linux distributions + Ability… more
    Nightwing (12/20/25)
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  • Linux System Administrator

    Parsons Corporation (Centreville, VA)
    …Unleash your talent and redefine what's possible. **Job Description:** Our Special Programs and Systems team is hiring Linux System Administrators with a ... includes system design, configuration, and debugging of Linux systems . Note: this is a full...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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  • 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...diagnosis and resolution - Implement, troubleshoot and maintain IT systems remotely - Document the management of system more
    Arena Technical Resources, LLC (11/29/25)
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  • Top Secret AWS Engineer

    Insight Global (Vienna, VA)
    Job Description Key Responsibilities Systems Operations & Maintenance Perform daily system health checks, log reviews, and performance monitoring across Linux ... with Bash scripting and custom script development. Experience performing STIGs and supporting system compliance. Active TS Clearance with SCI and CI Poly… more
    Insight Global (01/06/26)
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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 Engineer/Developer ( TS /SCI…

    General Dynamics Information Technology (Warrenton, 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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  • Fidelis Administrator - Active TS

    ENS Solutions (Reston, VA)
    …configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and ... administration. Requirements + 3+ years of experience as a system administrator + Experience with installing or...SSH or Console Port + Experience operating and maintaining Linux servers, including operating systems and applications,… more
    ENS Solutions (12/27/25)
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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 ... active TS /SCI with Poly security clearance. + Proven experience in systems administration for Windows and/or Linux environments. + Hands-on experience with… more
    Leidos (01/01/26)
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  • Linux Sys Admin - TS /SCI CI Poly

    Insight Global (Springfield, VA)
    …Counter-Intelligence Polygraph (CI Poly) * Security+ DoD 8570 certification or higher. * System administration across Linux systems . * Ability to work ... Job Description Seeking a Systems Administrator to join a high-performing...its national security strategy. This is for an on-site system administrator sustaining and maintaining a VM-based… 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 ... with assessing security relevant applications. . Experience as a System Administrator , Information System Security...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 ... + Experience with assessing security relevant applications. + Experience as a System Administrator , Information System Security Manager, or Information… 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 ... candidates for consideration, must possess an active and in-scope TS /SCI Polygraph.** **Basic Qualifications:** + Bachelor's degree and 8+...tool as well as maintaining the tool itself + Linux system administration to include ability to… more
    Leidos (11/07/25)
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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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