• Physical Security System

    M. C. Dean (Chantilly, VA)
    …across high-growth markets. As a System Administrator for our Physical Security Systems , you will be responsible for monitoring, maintaining, ... electrical, engineering, and cybersecurity industries. We are seeking a ** Physical Security System Administrator...improvements + Resolve complex system issues for physical security systems + Triage… more
    M. C. Dean (10/23/25)
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  • System Administrator Lead

    System One (Mclean, VA)
    Job Title: System Administrator Lead Location: Arlington, Virginia Type: Contract To Hire Contractor Work Model: Onsite Security Clearance: Top Secret w/ SCI ... eligibility Duties and Responsibilities: Leads a team of system administrators responsible for enterprise IT systems . * Manages escalated incidents, patch… more
    System One (12/18/25)
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  • System Operations/ Administrator

    Sciolex Corporation (Chantilly, VA)
    …Directory. Deploy software updates, patches, and security fixes to desktop systems . Conduct regular system backups and data recovery operations. Maintain and ... clearance with a Counter-Intelligence Polygraph Experience as a desktop system administrator or in a similar IT...DoD Directive 8570 Knowledge of Windows and Linux operating systems . CompTIA Security + or ability to obtain… more
    Sciolex Corporation (10/14/25)
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  • Citrix Systems Administrator

    Leidos (Bethesda, MD)
    …architectural changes to existing, approved, systems to maintain operability and security of the environment + Implement major system upgrades as designed ... can thrive, keep reading!** Leidos is seeking a Citrix Systems Administrator to support the National Media...and problems. + Experience working as a Tier 3 system administrator : familiar with using desktop software… more
    Leidos (12/03/25)
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  • System Administrator

    Leidos (Bethesda, MD)
    …has an exciting opening for you as our next Tier 3 Service Desk/ Systems Administrator supporting the OSINT Integration Center under our 10-year DOMEX Technology ... and troubleshooting of Linux and Windows servers to include base configuration, security and system patching, performance monitoring, etc. + Implement and… more
    Leidos (10/01/25)
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  • System Administrator

    CACI International (Ashburn, VA)
    System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of ... Travel: Local * * * **The Opportunity:** CACI is currently looking for a System Administrator with agile methodology experience to join our BEAGLE (Border… more
    CACI International (12/13/25)
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  • Linux System Administrator -Senior…

    Nightwing (Sterling, VA)
    …technical support and guidance for system -related issues, ensuring high performance, security , and availability of IT systems + Coordinate and manage IT ... and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program...policies, etc. using FreeIPA + Hands on experience with Physical rack installations, troubleshooting, and system integration… more
    Nightwing (12/20/25)
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  • Senior Systems Administrator

    The Boeing Company (Herndon, VA)
    …space. The Senior System Administrator will handle system administration tasks, including infrastructure management, information security , software ... (IDT&S) organization Specialized Infrastructure Operations group is currently seeking a **Senior Systems Administrator ** to join the team in **Herndon, VA** .… more
    The Boeing Company (12/25/25)
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  • System Administrator

    The Boeing Company (Herndon, VA)
    …future with us. Boeing Defense, Space & Security (BDS), Maritime and Intelligence Systems (M&IS), seeks a ** System Administrator ** (Shift Work) to join ... and tight deadlines, to include **infrastructure administration** , **information security ** support and configurations, software and **OS support** ,...a small group of end users who use our system and several other systems that we… more
    The Boeing Company (12/25/25)
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  • Jr. System Administrator

    Leidos (Chantilly, VA)
    …​The National Security Sector at Leidos currently has an opening for a System Administrator to work on our Department of State Facial Recognition (DoS FR) ... security controls and supporting security tests to validate security control implementation and operation -Contribute to system documentation efforts… more
    Leidos (12/24/25)
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  • Senior Systems Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a System Administrator for a technical development program supporting the Sponsor's Attribute Services within the IDAM/ICAM ... space.As a System Administrator on this program, you will...interacting with cross functional project teams including Software Development, System Engineering/ Verification and Validation, Security , Compliance… more
    Leidos (10/10/25)
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  • System Administrator

    TekSynap (Bethesda, MD)
    …by performing any necessary upgrades and repairs. + Planning a strategy to maintain system security on the computers and thenetwork as a whole. + Optimizingand ... evaluating the system regularly. + Assigning and updating security ...substituted for degree requirements. **Overview** We are seeking a ** System Administrator ** to perform various activities to… more
    TekSynap (12/16/25)
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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 ... and ordering hardware/software to meet customer requirements + Experience with client system security to include scans, patching, audit log review, and… more
    ManTech (12/19/25)
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  • Junior Systems Administrator

    Amentum (Mclean, VA)
    **Amentum** is looking for a **Junior Systems Administrator ** to join our team in **McLean, VA** ! As a Junior Systems Administrator , you will be ... **Responsibilities:** + Installing and configuring software updates, patching operating systems , managing system backups, and performing routine hardware… more
    Amentum (12/05/25)
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  • SAP NS2 Senior Cloud Engineer/ Systems

    SAP (Herndon, VA)
    …variety of benefit options for you to choose from. **SAP NS2 Senior Cloud Engineer/ Systems Administrator - Onsite - Chantilly, VA** **Active TS SCI with ... internals must have manager's approval to transfer. The NS2 Senior Cloud Engineer/ Systems Administrator candidate will be responsible for leading the development… more
    SAP (10/21/25)
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  • Systems Administrator

    Guidehouse (Bethesda, MD)
    …and troubleshooting of Linux and Windows servers to include base configuration, security and system patching, performance monitoring, etc. + Implement and ... virtual and physical environments + Manage, maintain, configure, and deploy system integration tools such as Kubernetes, Rancher, Helm + Develop scripts to… more
    Guidehouse (12/10/25)
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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 ... initiatives, including PKI, LDAP, and related authentication technologies + Maintain system documentation, configuration management, and security baselines in… 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 ... 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 (11/19/25)
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  • Cloud Administrator

    Leidos (Ashburn, VA)
    …cyber threats to CBP networks through monitoring, intrusion detection and protective security services to CBP information systems including local area ... servers and workstations. The CBP SOC is responsible for the overall security of CBP Enterprise-wide information systems , and collects, investigates, and… more
    Leidos (11/15/25)
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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 ... 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 (12/03/25)
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