• 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

    System One (Quantico, VA)
    …application deliverables and systems comply with applicable DISA STIGs or Security Requirements Guidance. * Identify and report system risks. Qualifications: ... System Administrator Quantico, VA - ONSITE...Duties & Responsibilities: * Plan, install, and maintain computer systems , including physical and virtual servers, storage… more
    System One (12/14/25)
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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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  • System Administrator

    UIC Government Services and the Bowhead Family of Companies (Quantico, VA)
    **Overview** Bowhead seeks a System Administrator to join our team supporting NIWC Atlantic. The System Administrator will work directly with the client ... management, and configuration records. * Collaborate with network and security teams to ensure system reliability and...higher certification * 7 years of experience as a Systems Administrator or similar infrastructure engineering role.… more
    UIC Government Services and the Bowhead Family of Companies (11/09/25)
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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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  • 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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  • Linux Systems Administrator - TS/SCI…

    Parsons Corporation (Centreville, VA)
    …redefine what's possible. **Job Description:** Parsons is seeking a mid-level Linux Systems Administrator . The candidate will support both Linux based ... systems maintenance. Responsibilities also include software and hardware system installations, and troubleshooting of user reported issues. The candidate will… more
    Parsons Corporation (12/06/25)
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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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  • 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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  • Network Administrator

    Leidos (Chantilly, VA)
    …SolarWinds, traceroute, ping, and ARP tables. + Experience managing and supporting physical and virtual network systems , including patching and configuration. + ... **Description** Leidos is seeking a Mid-level Forward Deployed Network Administrator to join our Network Engineering Team within the Engineering Operations group at… more
    Leidos (11/15/25)
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  • Database Administrator SME

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a Database Administrator for a technical development program supporting the Sponsor's Entitlement Programs as well as IdAM /ICAM, ... Policy Management. Primary Responsibilities: Overall responsibilities as a Database Administrator include performing all necessary procedures for several databases… more
    Leidos (10/10/25)
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  • Jobsite Administrator

    Hensel Phelps (Aldie, VA)
    …+ Physical Exam (if applicable) + Background Checks for Badging/ Security Clearances (if applicable) **About Hensel Phelps:** Founded in 1937, Hensel Phelps ... extends throughout the life of the property. **Position Description:** The Jobsite Administrator is responsible for a variety of administrative and clerical duties… more
    Hensel Phelps (12/09/25)
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  • Expert Database Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a Database Administrator to support the Sponsor's Authentication Programs as well as Authorization, and Digital Policy Management. ... pages and other records as needed + Support database security hardening + Address and troubleshoot technical problems +...through emails that are generated by the Leidos.com automated system - never from free commercial services (eg, Gmail,… more
    Leidos (10/10/25)
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  • Information System Security Engineer…

    Amentum (Warrenton, VA)
    …using intimate knowledge of security design best practices for information systems . throughout the system development life cycle to support the generation ... look no further. Amentum is seeking a Senior Information System Security Engineer (ISSE) to join our...of high and at-risk systems . * Perform security assessments on hardware/software products to include physical more
    Amentum (12/05/25)
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  • Information System Security Engineer…

    Assertive Professionals (Chantilly, VA)
    …Desired Experience and Qualifications: + Certified Information Systems Security Professional (CISSP) Certification(s). + Certified Splunk Administrator ... Information System Security Engineer (ISSE) About the...security vulnerabilities, organizing and maintaining awareness of both physical and logical placement of network nodes within a… more
    Assertive Professionals (10/09/25)
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  • Security Control Assessor (SCA) (TS/SCI)

    Tau Six (Chantilly, VA)
    …+ Experience with assessing security relevant applications. + Experience as a System Administrator , Information System Security Manager, or ... application of the Defense Information Systems Agency (DISA) Security Technical Implementation Guides. + Operating System /Computing Environment certificate… more
    Tau Six (10/22/25)
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  • Windows Systems Adminsitrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a skilled and motivated **Windows Systems Administrator ** to join our team of top Information Technology and Analytic professionals in ... the organization's Windows infrastructure as part of a collaborative systems team. Your focus will span operations, security...operating systems + Design interfaces to external systems and maintain thorough documentation on system more
    ManTech (12/03/25)
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  • Tech Specialist 4

    M. C. Dean (Chantilly, VA)
    system performance and recommend improvements + Resolve complex system issues for physical security systems and networks + Provide Tier 3 support to ... Technical Specialist will demonstrate the following capabilities: + Manage physical security system support to...of experience with installation, troubleshooting and/or testing of electronic security systems + 12 years of experience… more
    M. C. Dean (11/26/25)
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  • Linux Engineer

    Arena Technical Resources, LLC (Chantilly, VA)
    …to produce security and engineering related artifacts that span technical, physical , and logical system scope. - Interface with subject matter experts ... Engineering team is seeking a driven Senior Linux/UNIX Systems Administrator that is highly technical and...diagnosis and resolution - Implement, troubleshoot and maintain IT systems remotely - Document the management of system more
    Arena Technical Resources, LLC (11/29/25)
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  • Lead Network Engineer

    Nightwing (Sterling, VA)
    …**Assist the Systems Administrators as assigned by the Lead System Administrator .** **Assist the Lead, Network Engineer in developing and ... Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers'… more
    Nightwing (10/23/25)
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