• Senior Systems Administrator…

    Leidos (Fort Belvoir, VA)
    **Description** Leidos is seeking a highly skilled ** Senior Systems Administrator ** to support mission-critical operations across various laboratory ... systems to address complex mission-specific challenges. The ** Senior Systems Administrator ** will work...system automation and optimization. + Experience with network file systems (eg, NFS, SMB) and virtualization technologies… more
    Leidos (06/11/25)
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  • Senior System Administrator (NETOPS)…

    Huntington Ingalls Industries (Virginia Beach, VA)
    …a short video: https://vimeo.com/732533072 Who We Are HII-Mission Technologies is seeking a Senior System Administrator at our Virginia Beach, VA. location. The ... operations. HII designs, develops, integrates and manages the sensors, systems and other assets necessary to support integrated ISR...Senior System Administrator is responsible for the day-to-day administration, maintenance, and… more
    Huntington Ingalls Industries (07/31/25)
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  • System Administrator , Senior

    BOOZ, ALLEN & HAMILTON, INC. (Fort Belvoir, VA)
    System Administrator , Senior The Opportunity: Your combination...Defense ( DoD ) ? We're looking for a systems administrator who spe cia lizes in ... and cybersecurity solutions for the Defense and Intelligence communities. As a systems administrator on our project, you'll install, maintain, audit, and… more
    BOOZ, ALLEN & HAMILTON, INC. (07/22/25)
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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 ... server environments + Knowledge of network security, firewalls, and intrusion detection systems + Experience with virtualization technologies and cloud computing… more
    SimIS Inc. (06/23/25)
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  • System Administrator - Senior Level

    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...and scalability + Knowledge of advanced features such as virtualization , automation, and patch management with the ability to… more
    Nightwing (06/27/25)
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  • Sr. Systems Administrator TS/SCI…

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    **Sr. Systems Administrator TS/SCI with Poly REQUIRED** **Category:** Database Administration **Main location:** United States, Virginia, Arlington **Position ... Full Time **Position Description:** CGI Federal has an exciting opportunity for a Systems Administrator within our Intel sector advancing the national security… more
    CGI Technologies and Solutions, Inc. (08/01/25)
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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 ... for federal, local and commercial customers across high-growth markets. As a System Administrator for our Physical Security Systems , you will be responsible for… more
    M. C. Dean (07/15/25)
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  • IT Infrastructure and Engineering Support…

    CACI International (Fairfax, VA)
    IT Infrastructure and Engineering Support Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with ... looking for an IT Infrastructure, Windows OS or Linux Systems Engineer who will work within Development Environment IT...It is an opportunity to work with a strong senior level engineering team and to affect the way… more
    CACI International (07/30/25)
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  • Database Administrator 4

    M. C. Dean (Chantilly, VA)
    …engineer and deploy automated, secure and resilient power and technology systems ; and deliver the management platforms essential for long-term system sustainability. ... Together, we transform the way complex, large-scale systems are designed, delivered, and sustained-enhancing client outcomes, improving lives, and changing the world… more
    M. C. Dean (07/15/25)
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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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