• Windows Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a skilled and motivated ** Windows Systems Administrator ** to join our team of top Information Technology and Analytic professionals in ... High School Diploma and 7+ years of relevant experience with Windows systems + Experience with complex system architectures and interconnected data environments… more
    ManTech (12/03/25)
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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 ... IT or related STEM field + Experience with ServiceNow + Microsoft Certified: Windows Server Hybrid Administrator AssociateCompTIA Network+ or Cisco CCNA for… more
    Amentum (01/09/26)
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  • Dev Sec Ops Engineer

    Lockheed Martin (Herndon, VA)
    …of the World \- Experience with Chef, Ansible, Gitlab or Docker \- Windows systems administrator experience **Security Clearance Statement:** This position ... and applications: \-\- Red Hat Linux \-\- AWS \- Prior Linux systems administrator experience \- Prior experience working within SAFe or other Agile Release… more
    Lockheed Martin (12/06/25)
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  • Systems Administrator

    BAE Systems (Sterling, VA)
    …and protect our freedom. BAE Systems is looking for a Senior Systems Administrator to provide comprehensive support to all aspects of system maintenance, ... incentives may be available based on position level and/or job specifics. ** Systems Administrator ** **117073BR** EEO Career Site Equal Opportunity Employer.… more
    BAE Systems (12/09/25)
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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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  • G2 SharePoint Systems Administrator

    General Dynamics Information Technology (Fairfax, VA)
    …Yes **Job Description:** Transform technology into opportunity as a **SharePoint / Systems Administrator ** at GDIT. Shape what's next for mission-critical ... GDIT, people are our differentiator. Our work depends on a **SharePoint / Systems Administrator ** joining our CNIC Applications Support team which provides… more
    General Dynamics Information Technology (01/05/26)
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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 ... understanding of client and server operations and maintenance with Windows 10 and 11 environments and Windows ...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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  • IT Systems Administrator

    EMCOR Group (Dulles, VA)
    …many government agencies. **Job Summary** **Essential Duties and Responsibilities:** **IT Systems Administrator Requirements:** The System Administrator is ... 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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  • System Administrator

    Assertive Professionals (Chantilly, VA)
    System Administrator About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small Business ... with Polygraph Timeline Pipeline Description Assertive Professionalsis seeking aSystem Administrator with Polygraph supporting ourNational Security Customer in Chantilly,… more
    Assertive Professionals (01/07/26)
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  • NCIS Systems Administrator | Active…

    General Dynamics Information Technology (Quantico, VA)
    …Required:** Yes **Job Description:** Transform technology into opportunity as a ** Systems Administrator ** at GDIT. Shape what's next for mission-critical ... subversive activities. **MEANINGFUL WORK AND PERSONAL IMPACT** As a ** Systems Administrator ** , the work you'll do...team at Quantico, VA. + Administer, manage and maintain Windows servers 2019 and 2022. + Responsible for … more
    General Dynamics Information Technology (01/05/26)
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  • Systems Administrator

    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 ... Poly security clearance. + CompTIA Security+ certification + Proven experience in systems administration for Windows and/or Linux environments. + Hands-on… more
    Leidos (01/13/26)
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  • System Administrator

    Gromelski & Associates, Inc. (Manassas, VA)
    …resources. **_System Administrator Required Tasks:_** + Performs duties as System Administrator on systems using Linux, Windows , and other operating ... Job Description:_** + Performs tasks as Red Hat Linux Systems Engineer and Administrator , develops kernels and other advanced solutions for leading edge… more
    Gromelski & Associates, Inc. (12/17/25)
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  • Database/ Systems Administrator

    CACI International (Ashburn, VA)
    Database/ Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular ... activities associated with delivery of software solutions associated with customer-defined systems and software projects by working in close collaboration with… more
    CACI International (11/01/25)
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  • Fidelis Administrator - Active TS/SCI…

    ENS Solutions (Reston, VA)
    …and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and evaluation, solution ... of start date. Optional Qualifications: + Experience with operating and maintaining Microsoft Windows and Linux servers to include operating systems . + Prior… more
    ENS Solutions (12/27/25)
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  • Database Administrator (Senior)

    BAE Systems (Sterling, VA)
    **Job Description** BAE Systems , a top-ten prime contractor to the US Department of Defense, enables the US government to transform data into intelligence and ... engineering, integration and sustainment support for critical military platforms and systems . Intelligence & Security provides services and products to the… more
    BAE Systems (10/29/25)
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  • System Administrator

    Chenega Corporation (Oakton, VA)
    …security and economic interests of our nation. SecuriGence is seeking an experienced Systems Administrator to help contribute to our success. If you enjoy ... System Administrator Oakton, VA . Information Technology Join our...Installing, configuring, and supporting windows -based. applications on Windows 7, 8, and 10 desktop systems ,… more
    Chenega Corporation (11/12/25)
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  • System Administrator

    CACI International (Ashburn, VA)
    …a minimum of five (5) solid years of experience providing system administration support for Windows and /or Linux Operating systems + Minimum 3 Years of VMware ... System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel… more
    CACI International (12/13/25)
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  • Physical Security System Administrator 4

    M. C. Dean (Chantilly, VA)
    …Security System Administrator 4** to join our **Security and Electronic Systems (SES)** business Unit. As part of **(SES)** Strategic Business Unit you will ... and commercial customers across high-growth markets. As a System Administrator for our Physical Security Systems , you...+ Digitus + C-Cure + Requires an understanding of Windows patching and vulnerability remediation with ATO processes +… more
    M. C. Dean (10/23/25)
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  • Senior IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include ... to obtain one within 180 days. + Experience with Windows and Linux operating systems . + Experience providing help-desk end-user support for common desktop… more
    ManTech (12/03/25)
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  • System Administrator

    Gromelski & Associates, Inc. (Manassas, VA)
    Windows environment. Maintains smooth operation of multi-user computer systems , including coordination with network administrators. **_System Administrator ... **System Administrator ** Location **Manassas, VA** Job Category **Engineering** ID...and Delivery, Multimedia Support, and Technical System Support._ **_System Administrator Job Description:_** Provides technical and operational support for… more
    Gromelski & Associates, Inc. (11/21/25)
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