• 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 to… more
    ManTech (07/22/25)
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  • Systems Administrator Senior

    TekSynap (VA)
    …**POSITION ACTIVITIES & RESPONSIBILITIES** + Install, configure, and maintain operating system workstations and servers, including web servers, to support business ... processing requirements. + Perform software installations and upgrades to operating systems and layered software packages, ensuring proper functionality. + Monitor… more
    TekSynap (07/18/25)
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  • Systems Administrator

    Huntington Ingalls Industries (Fairfax, VA)
    …video: https://vimeo.com/732533072 Job Description HII-Mission Technologies Division is seeking a Systems Administrator to join our Data Engineering Team in ... Defense (DoD). This role is ideal for an experienced system administrator who wants to expand skills...* Microsoft Windows Server certified (eg, Windows Server Hybrid Administrator Associate or MCSE: Windows… more
    Huntington Ingalls Industries (06/28/25)
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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 Open Description Assertive Professionalsis seeking aSystem Administrator with Polygraph supporting ourNational Security Customer in Chantilly,… more
    Assertive Professionals (07/10/25)
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  • Senior Tenable Nessus Administrator

    CACI International (Chantilly, VA)
    Senior Tenable Nessus 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 Senior Tenable Administrator to support our DoD...for installing and configuring Nessus Agents + Secure Tenable server an Enable TLS + Integrating Tenable products with… more
    CACI International (06/24/25)
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  • Enterprise Senior Systems

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Yes **Job Description:** GDIT seeks a highly motivated and experienced Enterprise Senior Systems Engineer to support the Defense Threat Reduction Agency ... Obtain:** Top Secret **Public Trust/Other Required:** None **Job Family:** Systems Administration **Skills:** Critical Systems ,Enterprise Servers,Operating … more
    General Dynamics Information Technology (08/08/25)
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  • Senior Systems Administrator

    SimIS Inc. (Dahlgren, VA)
    …the listed position and is contingent upon award. Job Description: SimIS, Inc. seeks a Senior Systems Engineer to lead systems engineering activities for a ... This position provides technical leadership for complex simulation and training systems including requirements analysis, system integration, verification and… more
    SimIS Inc. (06/23/25)
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  • Senior Network Administrator

    Service Source (Oakton, VA)
    …IT network infrastructure remains secure, available, and reliable. In this role, the senior network administrator is ultimately responsible for managing the use ... to include servers, switches, routers, cabling and UPS backup systems . + Maintain system integrity through active...monitoring of error logs and user-reported network issues. The senior network administrator conducts regular audits to… more
    Service Source (05/22/25)
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  • Senior Oracle Database Administrator

    ManTech (Chantilly, VA)
    **ManTech** seeks a motivated, career and customer-oriented ** Senior Oracle Database Administrator ** to join our team in **Chantilly , VA** The ** Senior ... ingest, organize and store petabytes of data from disparate system . **Responsibilities include but are not limited to:** +...restores + Managing, monitoring, and administering of Oracle database systems + Participating in server and storage… more
    ManTech (06/14/25)
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  • Systems Administrator

    TEKsystems (Quantico, VA)
    …managing group policies Skills System administrator , Vmware, systems engineering, vsphere, secret clearance, windows server , infrastructure, vcenter, ... administration, vmware infrastructure Top Skills Details System administrator ,Vmware, systems engineering,vsphere,secret clearance,windows server ,infrastructure,vcenter,esxi,vmotion,active directory,vmware… more
    TEKsystems (08/08/25)
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