• 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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  • G2 Directory Services Engineer / Senior

    General Dynamics Information Technology (Fairfax, VA)
    …**Job Description:** Transform technology into opportunity as a **Directory Services Engineer / Senior Systems Administrator ** at GDIT. Shape what's next for ... Our work depends on a **Directory Services Engineer / Senior Systems Administrator ** joining our...centers. + Installs, configures and maintains virtual hosts, operating systems , applications and databases. + Documents IT more
    General Dynamics Information Technology (01/05/26)
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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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  • Senior Systems / Network…

    Leidos (Quantico, VA)
    …worldwide. SMIT-MCEN is the largest IT services program for the Navy. The Senior Systems / Network Administrator will oversee the operation of network ... **Description** Leidos has an immediate opening for a Senior Systems / Network Administrator...current certifications and stay informed on emerging threats and IT advancements to ensure ongoing network readiness and compliance.… more
    Leidos (01/06/26)
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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 (01/05/26)
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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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  • Linux System Administrator - Senior

    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...system-related issues, ensuring high performance, security, and availability of IT systems + Coordinate and manage … more
    Nightwing (12/20/25)
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  • Systems Administrator

    General Dynamics Information Technology (Sterling, VA)
    …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** SYSTEMS ADMINISTRATOR SENIOR Advance how our customers operate while ... IT Infrastructure and Operations **Skills:** Information Technology ( IT ) Systems ,Linux,Microsoft Windows,Operating Systems (OS),Software...you advance your career. Join GDIT as a Systems Administrator Senior and build… more
    General Dynamics Information Technology (12/18/25)
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  • Senior System Cloud Administrator

    Insight Global (Herndon, VA)
    Job Description Insight Global's SaaS Client is seeking a highly skilled Senior Systems Cloud Administrator with strong experience in Microsoft Azure, ... and infrastructure standards. * Provide training or knowledge-sharing to IT operations and other technical teams. Systems ...to IT operations and other technical teams. Systems Lifecycle & Backup * Perform builds, upgrades, and… more
    Insight Global (12/04/25)
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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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  • Systems Administrator

    Amentum (Warrenton, VA)
    …Security, & Intel space? If so, look no further. Amentum is seeking a ** Systems Administrator ** to join our team of passionate individuals in **Warrenton, VA** ... for transformative change. **Responsibilities:** The duties and responsibilities of the ** Systems Administrator ** include, but are not limited to, the… more
    Amentum (12/10/25)
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  • Systems Administrator

    Amentum (Warrenton, VA)
    Amentum is seeking a Windows Systems Administrator to support our federal program in Warrenton, VA. Our mission is to operate and maintain the Distributed ... video, and data, global communications network that facilitates collaboration among senior leaders and key staff. **Responsibilities:** + Administer and maintain… more
    Amentum (01/09/26)
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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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  • Lead ServiceNow System Administrator Public…

    ICF (Reston, VA)
    …establishing, activating, modifying, disabling, and removing accounts. Provide support to IT systems , including day-to-day operations, monitoring, and problem ... rapidly growing, entrepreneurial, technology department, seeking a Lead ServiceNow System Administrator to support a federal project. Our Data Modernization Division… more
    ICF (01/03/26)
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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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