• Systems Administrator / Information…

    Guidehouse (Arlington, VA)
    …**Clearance Required** **:** Active Secret **What You Will Do** **:** We are seeking a Systems Administrator / Information Systems Engineer in support of the ... or more years of systems administration or information systems engineering experience. + IAT Level II certification. **What Would Be Nice To Have** **:** +… more
    Guidehouse (01/08/26)
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  • Fidelis Administrator - Active TS/SCI…

    ENS Solutions (Reston, VA)
    administrator , or Bachelor's degree and 3+ years of experience as a system administrator + Active DoD 8570 IAT Level II Certification, including Security+ CE, ... deployments and configuration management. + Experience as a network administrator or systems engineer. + Experience in using Active Directory to manage… more
    ENS Solutions (12/27/25)
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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 ... + Providing end-user support to personnel utilizing ITD IT systems . + Triaging help desk tickets for a broad...experience in Information Technology. + Current DoD 8570 IAT II certification (Security+, SSCP, or equivalent) or ability to… more
    ManTech (12/03/25)
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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 a ... are not limited to:** + Provide hands-on O&M support for enterprise systems , including break-fix resolution and routine sustainment tasks + Monitor system… more
    ManTech (12/13/25)
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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 ... + Providing end-user support to personnel utilizing ITD IT systems . + Triaging help desk tickets for a broad...may be substituted. + Certification: Current DoD 8570 IAT II certification (eg, Security+, SSCP) or the ability to… more
    ManTech (11/19/25)
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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...headquartered in Leesburg, VA, provides mission-critical services in Cybersecurity, Systems Engineering and Integration, IT Operations Support, Software Development,… more
    Chenega Corporation (11/12/25)
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  • Virtual Platform Administrator

    TekSynap (VA)
    …+ Create and maintain accurate system documentation for assigned systems , including tracking changes to virtualized infrastructure configurations. + Assist ... capacity planning, performance monitoring, and tuning for assigned virtualized systems . + Participate in virtualization disaster recovery planning, supporting fault… more
    TekSynap (11/15/25)
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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) ... **MEANINGFUL WORK AND PERSONAL IMPACT** **As a Tier III Administrator , you will work closely with your team and...ensure timely resolution.** **Process tickets received from the Tier II support desk to resolution and escalate appropriate tickets… more
    General Dynamics Information Technology (12/11/25)
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  • Virtual Platform Administrator

    TekSynap (VA)
    …+ Create and maintain accurate system documentation for assigned systems , including tracking changes to virtualized infrastructure configurations. + Assist ... capacity planning, performance monitoring, and tuning for assigned virtualized systems . + Participate in virtualization disaster recovery planning, supporting fault… more
    TekSynap (11/06/25)
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  • MDM Application Database Administrator - US…

    General Dynamics Information Technology (Fairfax, VA)
    …**US Citizenship Required:** Yes **Job Description:** **MDM Application Database Administrator ** Oversee complex programs that drive impactful mission outcomes for ... our customers as an IBM Master Data Management (MDM) Application Database Administrator . Here, you'll see the bigger picture on mission initiatives and where your… more
    General Dynamics Information Technology (01/06/26)
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