• Senior Systems Administrator

    V2X (Springfield, VA)
    …responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - active TS /SCI clearance to support our government ... required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to...to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II supports… more
    V2X (08/07/25)
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  • Senior Specialist Systems

    L3Harris (Springfield, VA)
    Senior Specialist, Systems Engineering - Information Technology Senior Systems Administrator (Active TS /SCI w/ CI Poly Required) Job Code: 26996 ... Description: L3Harris Technologies is seeking an experienced Information Technology Senior Systems Administrator or Mid-to-...of 10 years of prior related experience. + Active Top Secret /SCI w Poly Security Clearance. +… more
    L3Harris (09/04/25)
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  • Senior Systems Administrator

    The Boeing Company (Herndon, VA)
    …and Security (IDT&S) organization Specialized Infrastructure Operations group is currently seeking a ** Senior Systems Administrator ** to join the team in ... Scope Polygraph + 5+ years of experience as a systems administrator + 5+ years of experience...eligibility. **Security Clearance** This position requires an active US Top Secret /SCI Security Clearance (US Citizenship Required).… more
    The Boeing Company (09/26/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Quantico, VA)
    …**US Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a ** Senior Systems Administrator ** with GDIT. A career in ... criminal, terrorism, sabotage, espionage and subversive activities. **HOW OUR SENIOR SYSTEMS ADMINISTRATOR WILL MAKE...ServiceNow. **WHAT YOU'LL NEED:** + **Security Clearance Level:** Active Top Secret clearance (Must be TS more
    General Dynamics Information Technology (08/09/25)
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  • Senior Systems Administrator

    ICF (Reston, VA)
    …within the DC MD VA area We are seeking a highly skilled and customer-facing Senior Systems Administrator to support Linux and Windows environments for a ... **Key Responsibilities:** + Maintain and administer Linux and Windows operating systems , ensuring system performance and security compliance. + Apply patches,… more
    ICF (09/27/25)
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  • Senior Windows Systems

    SMX (Dahlgren, VA)
    Senior Windows Systems Administrator ... + Must be able to obtain and maintain Top Secret + Master's level degree in ... (https://www.smxtech.com/careers/) Dahlgren, VA SMX is looking for a highly motivated Senior Windows Systems Administrator to join our team in support of… more
    SMX (09/03/25)
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  • Senior Linux Systems

    ManTech (Chantilly, VA)
    **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA** This opportunity allows you to become ... to drive impactful solutions in support of critical government missions. As a ** Senior Linux Systems Administrator ,** you will help maintain and… more
    ManTech (08/30/25)
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  • Senior Linux/Unix Systems

    SMX (Dahlgren, VA)
    …in support of Naval Surface Warfare Center Dahlgren Division (NSWCDD) in Dahlgren, VA. The Senior Systems Administrator will work as part of our team ... Senior Linux/Unix Systems Administrator ... Senior Linux/Unix Systems Administrator (4419)at SMX(View all jobs)...be able to obtain and maintain Top Secret + 6+ years' experience administering Linux/Unix systems more
    SMX (09/03/25)
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  • Senior IT Systems

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities ... but are not limited to:** + Providing end-user support to personnel utilizing ITD IT systems . + Triaging help desk tickets for a broad range of service requests to… more
    ManTech (08/20/25)
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  • Senior IT Systems

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities ... but are not limited to:** + Providing end-user support to personnel utilizing ITD IT systems . + Triaging help desk tickets for a broad range of service requests to… more
    ManTech (08/20/25)
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