• Linux Administrator

    CACI International (Chantilly, VA)
    Linux Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee ... * We are seeking a highly skilled and motivated Linux Administrator to join our Federal IT...with RMF (Risk Management Framework). Required Qualifications * Active Top Secret clearance ( SCI eligibility… more
    CACI International (11/13/25)
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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… more
    The Metamorphosis Group (12/10/25)
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  • Linux System Administrator -Senior…

    Nightwing (Sterling, VA)
    …of experience supporting mission critical networks and computer systems. CLEARANCE REQUIREMENT: TS / SCI with POLY Responsibilities + Assist with the design, ... defense, civil, and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program in the Sterling VA location. The… more
    Nightwing (12/20/25)
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  • Linux Engineer

    Arena Technical Resources, LLC (Chantilly, VA)
    …ATR 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 highly technical...- Experience writing detailed, technical documentation -8570 Compliance -Active TS / SCI + CI Poly - Ability to… more
    Arena Technical Resources, LLC (11/29/25)
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  • Systems Administrator - TS

    General Dynamics Information Technology (Chantilly, VA)
    …ID:** RQ206369 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None ... Vormetric, and KMS).Demonstrated experience with web services. + **Security Clearance Level** : Top Secret / SCI with Polygraph + **Preferred Skills:** +… more
    General Dynamics Information Technology (12/16/25)
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  • Pr./System Admin - Shift Work ( Top

    Northrop Grumman (Chantilly, VA)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: No **Description** At Northrop Grumman, our employees have ... **Must have US Citizenship with a current or active Top Secret level clearance and the ability...Secret level clearance and the ability to obtain SCI level access at time of application** + Experience… more
    Northrop Grumman (11/25/25)
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  • Fidelis Administrator - Active TS

    ENS Solutions (Reston, VA)
    …Fidelis appliance stack and network issues to ensure it remains fully operational + Active TS / SCI clearance; willingness to take a polygraph exam + HS diploma or ... configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and evaluation,… more
    ENS Solutions (09/27/25)
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  • System Administrator ( TS

    IBM (Bethesda, MD)
    …Proven ability in assisting customers in debugging any implementation issues. * Active TS / SCI Fullscope Poly clearance with the agency **Preferred technical and ... around us. **Your role and responsibilities** As a System Administrator , you will work closely with IBM and clients'...professional experience** * Linux administration skills * Knowledge of HCL BigFix *… more
    IBM (12/03/25)
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  • Security Control Assessor (SCA) ( TS

    Tau Six (Chantilly, VA)
    …networking, and cybersecurity tools, techniques, and tactics. Clearance Required: US Government Top Secret / SCI Responsibilities: The Security Control ... Experience with assessing security relevant applications. + Experience as a System Administrator , Information System Security Manager, or Information System… more
    Tau Six (10/22/25)
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  • Senior System Integrator Engineer ( TS

    Vexterra Group (Bethesda, MD)
    …least 6 years of relevant professional experience * Must have an active TS / SCI with Counterintelligence Poly * Experience in system integrations testing through ... and O&M team members on the following key tasks: DUTIES * Perform Linux builds, installs, configuration, administration, and troubleshooting of both Linux and… more
    Vexterra Group (10/14/25)
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  • OCONUS Field Engineer - TS / SCI

    Leidos (Chantilly, VA)
    …Requirement:** **All candidates for consideration, must possess an active and in-scope TS / SCI Polygraph.** **Basic Qualifications:** + Bachelor's degree and 8+ ... will have prior experience as either a systems engineer or systems administrator . Prior OCONUS experience and IP networking knowledge are desired. The program… more
    Leidos (11/07/25)
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  • System Engineer ( TS / SCI )- Senior…

    Vexterra Group (Bethesda, MD)
    …or SSCP along with an appropriate computing environment (CE) certification) Clearance + Active TS / SCI clearance + Active CI Polygraph or willing to obtain one ... Description: Vexterra is looking to fill a Windows Systems Engineer and Administrator position within the Analysis Solutions Division (ASD) to support the National… more
    Vexterra Group (10/14/25)
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  • Dev Sec Ops Engineer

    Lockheed Martin (Herndon, VA)
    …experience \- TS / SCI clearance is required for this position; Final Top Secret clearance is required to start **Desired Skills:** \- Prior experience ... and must meet eligibility requirements for access to classified information \. A TS / SCI clearance is...Red Hat Linux \-\- AWS \- Prior Linux systems administrator experience \- Prior experience… more
    Lockheed Martin (12/06/25)
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  • Systems Administrator

    Guidehouse (Bethesda, MD)
    **Job Family** **:** Systems Engineering **Travel Required** **:** None **Clearance Required** **:** Active Top Secret SCI ( TS / SCI ) **What You Will ... and Windows builds, installs, configuration, administration, and troubleshooting of Linux and Windows servers to include base configuration, security...**What You Will Need:** + An ACTIVE and MAINTAINED " TOP SECRET / SCI ( TS /… more
    Guidehouse (12/10/25)
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  • Junior Systems Administrator

    Amentum (Mclean, VA)
    …day-to-day maintenance and support of computer systems and networks. **Must have an Active Top Secret / SCI US Government clearance. Note: US Citizenship is ... **Amentum** is looking for a **Junior Systems Administrator ** to join our team in **McLean, VA**...required to maintain a Top Secret / SCI clearance.** **Responsibilities:** +… more
    Amentum (12/05/25)
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  • System Development Engineer, STRADA - Service…

    Amazon (Herndon, VA)
    …to launch a project on a trajectory to success? Amazon is seeking a Linux /Unix Systems Administrator /Engineer with the ability to automate day to day tasks ... the ground up. A good candidate must have strong Linux /Unix Systems Administration knowledge, including shell scripting, and a...Citizen and must currently possess and maintain an active TS / SCI security clearance with polygraph. Key job… more
    Amazon (12/05/25)
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  • SAP NS2 Senior Cloud Engineer/Systems…

    SAP (Herndon, VA)
    …NS2 Senior Cloud Engineer/Systems Administrator - Onsite - Chantilly, VA** **Active TS SCI with Polygraph Required** **NS2 COMPANY DESCRIPTION** SAP is the ... infrastructure customers. Must be a US Citizen with active TS /SC with Poly; NS2 does not offer Visa sponsorships...Security, Engineering, Information Technology. MA/MS Preferred. + Top Secret Clearance with Polygraph Note: The… more
    SAP (10/21/25)
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  • System Administrator

    Leidos (Bethesda, MD)
    …experience + At least 4+ years of relevant professional experience + Must have an active Top Secret security clearance with the ability to obtain and maintain a ... you as our next Tier 3 Service Desk/ Systems Administrator supporting the OSINT Integration Center under our 10-year...TS / SCI with Polygraph security clearance + Experience… more
    Leidos (10/01/25)
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  • Systems Administrator

    Guidehouse (Bethesda, MD)
    …Systems Engineering (SYE) **Travel Required** **:** Up to 10% **Clearance Required** **:** Active Top Secret SCI with Polygraph **What You Will Do** **:** ... You Will Need** **:** + An ACTIVE and MAINTAINED TS / SCI Federal or DoD security clearance with...patching, and system monitoring + Demonstrated experience with IC information technology ( Linux and Windows) and security… more
    Guidehouse (12/25/25)
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  • System Administrator

    The Boeing Company (Herndon, VA)
    …based on candidate eligibility. **Security Clearance** This position requires an active US Top Secret / SCI Security Clearance (US Citizenship Required). (A US ... System Admin Team during high impact operations. This position requires an **active TS / SCI ** US Security Clearance (US Citizenship Required). (A US Security… more
    The Boeing Company (12/25/25)
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