• System Administrator

    Parsons Corporation (Centreville, VA)
    …intelligence community or DoD. + Strong proficiency in managing Windows and Linux operating systems . + Extensive experience with Cisco network devices and ... ensure systems are secure and compliant. + Develop and maintain Standard Operating Procedures (SOPs) for system administration tasks. + Work closely with the… more
    Parsons Corporation (12/04/25)
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  • Pr./ System Admin - Shift Work (Top Secret)

    Northrop Grumman (Chantilly, VA)
    …and configuration management. + Maintain smooth operation of multi-user computer systems , including coordination with team members, system engineers, operators, ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...history. We have an opening for a **Tier 2/3 System Administrator** to join our team of qualified, diverse… more
    Northrop Grumman (11/25/25)
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  • ISSO/ Systems Security Engineer

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    …network, and operating system hardening techniques. + Knowledge of system administration concepts for operating systems such as but not ... NSWCDD ISSM. + Recommend and develop draft IA and system security procedures and practices, in accordance with the...limited to Unix/Linux, IOS, Android, and Windows operating systems . **Preferred:** + Experience with the… more
    UIC Government Services and the Bowhead Family of Companies (12/18/25)
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  • Lead Sterling B2B ITX Engineer - Hybrid - 1 day…

    System One (Reston, VA)
    …unit and integration testing, and debugging of computer software ranging from operating system architecture integration and software design to selection of ... computer systems , language, and/or equipment. Designs, codes, tests, develops, and.... Works with end-users and project stakeholders to define system scope and objectives. Manages modifications to and maintenance… more
    System One (12/18/25)
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  • System Administrator

    ManTech (Virginia Beach, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Systems Administrator** to join our team in **Virginia Beach, VA.** This is an **onsite** position. As ... a Systems Administrator you will provide direct support to the...but are not limited to:** + Execute the full System Development Life Cycle (SDLC) from initial receipt of… more
    ManTech (12/06/25)
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  • Cyber Operations Specialist III

    System One (Springfield, VA)
    …experience working in Cyber Security Operating Host Based Security System (HBSS), firewalls, Intrusion Prevention Systems , Intrusion Detection Systems ... external stakeholders based on events, alerts, and incidents on the customer systems and networks. + Provide advanced cybersecurity analytics (ACA) services which… more
    System One (12/18/25)
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  • Network Engineer SME

    System One (Alexandria, VA)
    …(MX), switches (EX), and firewalls (SRX). * Junos OS: Knowledge of Juniper's operating system for network device management. * Protocols: strong understating of ... security measures, such as firewalls, access controls, and intrusion prevention systems . * Inspect, maintain, and, where necessary, replace network cabling and… more
    System One (12/18/25)
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  • System Operations/Administrator

    Sciolex Corporation (Chantilly, VA)
    …IT support role. Compliant with DoD Directive 8570 Knowledge of Windows and Linux operating systems . CompTIA Security+ or ability to obtain within 90 days of ... Deploy software updates, patches, and security fixes to desktop systems . Conduct regular system backups and data recovery operations. Maintain and update asset… more
    Sciolex Corporation (10/14/25)
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  • Systems Administrator

    Arena Technical Resources, LLC (Langley, VA)
    …networks. Desktop system management responsibilities involving account monitoring, security, Operating System (OS) installation, and other local area ... and communication of status to agency management and internal customers * Install/load operating system and application software * Isolate and resolve hardware… more
    Arena Technical Resources, LLC (12/18/25)
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  • Systems Administrator

    William C Brown Inc (Springfield, VA)
    …networks. Desktop system management responsibilities involving account monitoring, security, Operating System (OS) installation, and other local area ... and communication of status to agency management and internal customers* Install/load operating system and application software* Isolate and resolve hardware and… more
    William C Brown Inc (10/14/25)
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