• Linux Systems Administrator

    SAIC (Reston, VA)
    …national importance. This position is in Reston, VA. We are seeking a highly motivate System Administrator to join our National Intelligence Program to be at the ... active TS/SCI clearance with Polygraph. **Required:** + Proven experience as a Systems Administrator , with a focus on supporting a complex enterprise… more
    SAIC (08/07/25)
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  • Systems Administrator III Lead

    CACI International (Norfolk, VA)
    Systems Administrator III Lead Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular ... US * * * **The Opportunity:** + Join NAVSEA 03S as the lead Systems Administrator for the Navy Maintenance and Modernization Enterprise Solution (NMMES) +… more
    CACI International (07/09/25)
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  • Senior System Administrator

    ManTech (Chantilly, VA)
    …to join our team in **Chantilly, VA** . A qualified Senior Systems Administrator will support a secure Windows-based Information System and will assist and ... installation, operation, and maintenance of all current and future Information Systems . Duties and responsibilities involve the support and administration of Windows… more
    ManTech (06/03/25)
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  • Exchange Systems Administrator SME

    Leidos (Alexandria, VA)
    …where you can thrive, keep reading!** **The Mission** Leidos is seeking an Exchange System Administrator to support a large enterprise IT contract for the DOD. ... service inquiries and problems. + Extensive experience working as a Tier 2 system administrator : familiar with using exchange/vault tools. + Extensive experience… more
    Leidos (07/23/25)
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  • System Administrator

    CGI Technologies and Solutions, Inc. (Newport News, VA)
    ** System Administrator ** **Category:** Infrastructure/ Cloud **Main location:** United States, Virginia, Newport News **Position ID:** J0325-0671 **Employment ... understanding of networking (eg routing, switching, protocols) 3-5 years of System Administration experience working supporting Cloud Infrastructure (IaaS)… more
    CGI Technologies and Solutions, Inc. (05/14/25)
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  • Principal System Administrator

    RTX Corporation (Springfield, VA)
    …a security clearance​ **Security Clearance:** TS/SCI with Polygraph **Principal** ** System Administrator ** **-** **Network Operations Center** **-Springfield, ... and provide access to tools and resources that enable this **Principal** ** System Administrator - Network Operations Center** employee to continuously improve… more
    RTX Corporation (07/24/25)
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  • System Administrator

    Tyto Athene (Fort Belvoir, VA)
    **Description** Tyto Athene is searching for a ** System Administrator ** to work as part of an integrated team including cybersecurity specialists, network ... or Related Field or equivalent experience + 5 to 8 years experience as a System Administrator + Knowledge in Network, Firewall and System Administration +… more
    Tyto Athene (07/28/25)
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  • Senior Systems Administrator

    Leidos (Vienna, VA)
    **Description** The National Security Sector at Leidos is seeking a **Senior System Administrator ** to join a dynamic team based in **Tysons Corner, VA** . This ... team responsible for managing a wide range of mission-critical systems . **Key Details** : + Work hours fall within...duty rotation + Contribute technical insights to guide the system 's cloud hosting strategy + Develop monitoring… more
    Leidos (07/29/25)
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  • Systems Administrator Junior

    TekSynap (VA)
    …& RESPONSIBILITIES** + Provides analysis, design, and integration support for infrastructure systems , including cloud -based services like AWS or Azure for ... tools such as Ansible, Packer, and AWS CloudFormation. + Designs and manages cloud environments, including EC2, S3, RDS, VPCs, Lambda, IAM, and other AWS services… more
    TekSynap (07/18/25)
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  • Linux System Administrator

    V2X (Ashland, VA)
    …and response to CBRN threats. + In the role of an Intermediate System Administrator for the Integrated Early Warning of Chemical, Biological, Radiological, ... potential system issues or performance bottlenecks. + Respond quickly to system downtime or malfunctions, diagnosing and bringing systems back online as… more
    V2X (07/09/25)
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