• 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… more
    ManTech (12/03/25)
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  • Senior Systems Administrator

    TekSynap (Dahlgren, VA)
    …is seeking a **S** **enior S** **ystem** ** Administrator (Unix/Linux).** The Senior Systems Administrator (Unix/Linux) serves as Key Personnel under ... support for Unix/Linux environments within the Navy enterprise. The Senior Systems Administratoris responsible forconfiguration, optimization, and sustainment… more
    TekSynap (10/31/25)
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  • Lead Senior Systems

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented ** Senior Systems Administrator ** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... responsible for providing a full range of Tier 2/3 IT support services and expertise to customer activities, as...or high school diploma/GED and 13 years of relevant systems administration experience with 3 + years in a… more
    ManTech (12/19/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II shall support the Information Technology ( IT ) Operations and ... integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist...with the activity's Senior Systems Administrator , Network Engineer as well as the IT more
    V2X (11/15/25)
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  • Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated and skilled ** Senior Systems Administrator ** to join our sustainment team in **Chantilly, VA.** In this role, you will support ... limited to:** + Provide hands-on O&M support for enterprise systems , including break-fix resolution and routine sustainment tasks +...of a degree + 5+ years of experience in IT , O&M, sustainment, and/or break-fix support + Demonstrated experience… more
    ManTech (12/13/25)
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  • Senior VMware Administrator | Active…

    General Dynamics Information Technology (Quantico, VA)
    …Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a ** Senior VMware Administrator ** at GDIT. Shape what's next for ... sabotage, espionage and subversive activities. **MEANINGFUL WORK AND PERSONAL IMPACT** As a ** Senior VMWare Administrator ,** the work you'll do at GDIT will be… more
    General Dynamics Information Technology (10/08/25)
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  • Senior Tier III Administrator

    General Dynamics Information Technology (Chantilly, VA)
    …Required:** Yes **Job Description:** **GDIT is seeking a Senior Tier III Administrator to provide support to Defense Information Systems Agency (DISA) Global ... your technical expertise along with a drive for innovation to GDIT. The Senior Tier III Administrator must have:** **Education:** **Bachelor's Degree in Computer… more
    General Dynamics Information Technology (12/11/25)
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  • Cleared Senior Microsoft Azure Enclave…

    Virtual Service Operations (Lorton, VA)
    Cleared Senior Microsoft Azure Enclave Administrator * Lorton, VA (http://maps.google.com/maps?q=Lorton+VA+USA) Description Are you a skilled cloud professional ... expertise in Microsoft Azure and secure enclave environments? Join our team as a Senior Microsoft Azure Enclave Administrator and play a critical role in… more
    Virtual Service Operations (10/31/25)
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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 ... expected work well as a part of the DTRA Systems Administration team using ITIL best practices as well...or MS degree with 4-6 years of experience in IT operations working with Linux servers and Virtualization +… more
    Leidos (12/30/25)
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  • Senior System Administrator

    SAIC (Fort Belvoir, VA)
    **Description** The Senior System Administrator will provide support for operational intelligence integration and data-centric operations for customers across ... markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT , including cloud services;… more
    SAIC (11/19/25)
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  • Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …and importance of others (work and win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system simulation support to the Warfare ... of an overall effort to provide high fidelity simulation systems and enable engineers to verify Combat Systems...Level II or higher. This position is designated as IT -I. Benefits: + Medical, Dental, and Vision + Short… more
    SimIS Inc. (11/06/25)
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  • Senior Contract Support…

    KBR (Chantilly, VA)
    Title: Senior Contract Support Administrator Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions. + Collaborative Environment: Be part of a… more
    KBR (10/15/25)
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  • NCIS Systems Administrator | Active…

    General Dynamics Information Technology (Quantico, VA)
    …potential, or suspected criminal, terrorism, sabotage, espionage and subversive activities. **HOW OUR SENIOR SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT** As a ... Required:** Yes **Job Description:** Transform technology into opportunity as a ** Systems Administrator ** at GDIT. Shape what's next for mission-critical… more
    General Dynamics Information Technology (11/04/25)
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  • Senior ArcGIS Administrator

    Leidos (Fort Belvoir, VA)
    **Description** Leidos is seeking a ** Senior ** **ArcGIS Administrato** **r** **in Fort Belvoir, VA** to support the DTRA Program. As a member of our high-performing ... and troubleshooting complex GIS issues. You will collaborate with IT professionals and GIS system users to advance GIS...releases of Esri product lines. + Upgrade ArcGIS Enterprise systems to the applicable or latest versions. + Perform… more
    Leidos (12/30/25)
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  • Lead Windows Systems Administrator

    General Dynamics Information Technology (Chantilly, VA)
    …of related experience **US Citizenship Required:** Yes **Job Description:** Lead Windows Systems Administrator (SME) We are seeking an accomplished Lead Windows ... SCI + Polygraph **Public Trust/Other Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Domains,Microsoft Windows Server Infrastructure,Microsoft... Systems Administrator to oversee the design, operations,… more
    General Dynamics Information Technology (12/29/25)
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  • SharePoint Administrator Expert (SME)…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Required:** None **Job Family:** Technical Solutions **Skills:** Information Systems ,Microsoft SharePoint,Operations **Experience:** 10 + years of related experience ... **US Citizenship Required:** Yes **Job Description:** **SharePoint Administrator Expert (SME) - TS/SCI required** Make meaningful contributions that fuel critical… more
    General Dynamics Information Technology (10/29/25)
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  • Print System Administrator

    SAIC (Quantico, VA)
    …markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT , including cloud services; ... **Description** SAIC is seeking a Printer/System Administrator for a full-time/onsite role in Quantico, VA....for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the… more
    SAIC (11/14/25)
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  • Cisco Call Manager Administrator

    CACI International (Chantilly, VA)
    Cisco Call Manager Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular ... * **The Opportunity:** CACI is looking for a Cisco Call Manager Administrator is responsible for the day-to-day administration, configuration, and maintenance of the… more
    CACI International (12/27/25)
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  • Physical Security System Administrator 4

    M. C. Dean (Chantilly, VA)
    …electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems . Headquarters in Tysons, Virginia, MC Dean delivers ... Security System Administrator 4** to join our **Security and Electronic Systems (SES)** business Unit. As part of **(SES)** Strategic Business Unit you will… more
    M. C. Dean (10/23/25)
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  • Network Administrator II

    William C Brown Inc (Springfield, VA)
    Network Administrator II EOE Statement We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without ... characteristic protected by law. Description WCBinc is looking for a Network Administrator to provide support for implementation, troubleshooting and maintenance of … more
    William C Brown Inc (12/01/25)
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