• IT Systems Administrator

    EMCOR Group (Dulles, VA)
    …well as many government agencies. **Job Summary** **Essential Duties and Responsibilities:** ** IT Systems Administrator Requirements:** The System ... 3 level" + Responsible for capacity, storage planning, and database performance ** Systems Administrator Qualifications:** + Relevant degree or diploma in… more
    EMCOR Group (12/31/25)
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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… more
    ManTech (12/03/25)
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  • IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include ... 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 (11/19/25)
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  • IT Infrastructure and Engineering Support…

    CACI International (Sterling, VA)
    …* * **The Opportunity:** CACI has an immediate opening for an Infrastructure/ Systems Administrator , supporting a development and test environment, utilizing ... IT Infrastructure and Engineering Support Administrator Job...various operating systems and a multitude of engineering equipment. This position is… more
    CACI International (11/29/25)
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  • Systems Administrator (SME)

    BAE Systems (Herndon, VA)
    …SME to provide Tier I & II problem identification, diagnosis, and resolution for complex IT systems , as well as technical assistance to computer system users. As ... a Systems Administrator SME, you will play a...+ Provide support for implementation, troubleshooting, and maintenance of IT systems , including day-to-day operations, monitoring, and… more
    BAE Systems (12/12/25)
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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 you ... IT Infrastructure and Operations **Skills:** Information Technology ( IT ) Systems ,Linux,Microsoft Windows,Operating Systems (OS),Software...advance your career. Join GDIT as a Systems Administrator Senior and build an impactful… more
    General Dynamics Information Technology (12/18/25)
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  • Systems Administrator Expert…

    General Dynamics Information Technology (Germantown, MD)
    …years of related experience **US Citizenship Required:** Yes **Job Description:** ** Systems Administrator Expert - Backup and Configuration** Transform ... technology into opportunity as a ** Systems Administrator Expert - Backup and Configuration**...for the administration, maintenance, and support of the organization's IT systems and infrastructure including managing servers,… more
    General Dynamics Information Technology (01/05/26)
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  • ITSM ServiceNow Administrator

    BAE Systems (Sterling, VA)
    **Job Description** **Join a Team that's Shaping the Future of IT Support** At BAE Systems , we're passionate about delivering innovative IT solutions that ... customers to achieve their missions. As an **ITSM ServiceNow Administrator ** , you'll play a critical role in providing..., you'll play a critical role in providing exceptional IT support to the customer. You'll be part of… more
    BAE Systems (10/30/25)
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  • Database Administrator

    BAE Systems (Reston, VA)
    **Job Description** At BAE Systems , we're passionate about harnessing the power of technology to drive innovation and make a meaningful impact. Our team is dedicated ... mission-critical objectives. We're now seeking a highly skilled Database Administrator to join our dynamic team and help us...in an area related to the labor category (ie, IT , Computer Science, Information Science, Data Science/Engineering) from a… more
    BAE Systems (12/30/25)
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  • Lead Senior Systems Administrator

    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 - COMSEC

    KBR (Chantilly, VA)
    Title: Systems Administrator - COMSEC Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... our national security. In this SETA role, you use your expertise to perform Systems Administration for a COMSEC group. A Systems Engineering Technical Advisor… more
    KBR (12/06/25)
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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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  • Systems Administrator - TS/SCI…

    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 for a professional with solid systems administration expertise, particularly in pipeline automation and/or VMware environments across Windows and/or Linux… more
    Leidos (01/01/26)
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  • Cloud Administrator

    Leidos (Ashburn, VA)
    …tasks such as provisioning, monitoring, troubleshooting, and optimizing cloud resources and systems . The Cloud Administrator must have a deep understanding and ... intrusion detection and protective security services to CBP information systems including local area networks/wide area networks (LAN/WAN), commercial Internet… more
    Leidos (11/15/25)
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  • Systems Administrator III

    Noblis (Chantilly, VA)
    Responsibilities As a Systems Administrator , you will be responsible for installing, configuring, and maintaining operating system workstations and servers, ... with established IT policies and procedures + Monitor and tune systems to achieve optimum performance levels + Ensure workstation/server data integrity by… more
    Noblis (12/30/25)
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  • Fidelis Administrator - Active TS/SCI…

    ENS Solutions (Reston, VA)
    …Experience automating deployments and configuration management. + Experience as a network administrator or systems engineer. + Experience in using Active ... innovative solutions to enable secure and reliable operations of enterprise computer systems . Develop new concepts and processes and analyze root causes and resolve… more
    ENS Solutions (12/27/25)
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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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  • 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 a ... 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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  • 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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  • System Operations/ Administrator

    Sciolex Corporation (Chantilly, VA)
    …Top Secret/SCI clearance with a Counter-Intelligence Polygraph Experience as a desktop system administrator or in a similar IT support role. Compliant with DoD ... that surpasses the epitome of excellence. Our core services include systems engineering technical advice, technical support, and administrative assistance. From our… more
    Sciolex Corporation (10/14/25)
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