• Senior Network Tool Engineer

    Leidos (Chantilly, VA)
    …regular system maintenance, including software upgrades (NED upgrades), patching, security auditing, and configuration backups for network devices. + ... perform root cause analysis. + Integrate NSO with various network devices, external systems , and APIs using...through emails that are generated by the Leidos.com automated system - never from free commercial services (eg, Gmail,… more
    Leidos (12/20/25)
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  • Systems Administrator

    William C Brown Inc (Springfield, VA)
    systems connected to local and wide area networks. Desktop system management responsibilities involving account monitoring, security , Operating System ... related functions.* Provide support for implementation, troubleshooting and maintenance of IT systems and management of system infrastructure and any processes… more
    William C Brown Inc (01/13/26)
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  • Network Engineer

    Leidos (Arlington, VA)
    …+ Provide intermediate to senior-level technical expertise and assist with network integration and consolidation efforts across multiple systems environments. ... technical problems relating to the installation and upgrade of network hardware and systems . + Interface with...+ Candidate must possess an active DOD TS/SCI level security clearance, and be eligible to obtain and maintain… more
    Leidos (01/02/26)
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  • Security Control Assessor (SCA) (TS/SCI)

    Tau Six (Chantilly, VA)
    …application of the Defense Information Systems Agency (DISA) Security Technical Implementation Guides. + Operating System /Computing Environment certificate ... of security professionals and help defend national security systems . Tau Six, an agile small... security relevant applications. + Experience as a System Administrator, Information System Security more
    Tau Six (10/22/25)
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  • Network Engineer

    ManTech (Chantilly, VA)
    **MANTECH** is seeking a motivated, career and customer-oriented ** Network Engineer** to join our team based out of **Chantilly, VA.** The Network Engineer must ... of work performance, and adherence to professional standards and operational and security guidelines as defined by the Government and ManTech International, Inc.… more
    ManTech (01/13/26)
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  • Architecture Network Engineer

    Leidos (Chantilly, VA)
    …**The Digital Modernization Sector at Leidos** **has an opening for a** ** Network ** **Engineer (Campus Area Network /Local Area Network (CAN/LAN))** ... to support global enterprise networks. The CAN/LAN service network architecture provides solutions for modernizing network components while supporting service… more
    Leidos (12/09/25)
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  • Network Technician I

    BlackBox (Sandston, VA)
    Black Box Network Services, the global leader in communication system integration, is looking for several Technician - Network with a proven track record in: ... IP phones This position will support facilities management, site security and project engagement with a commitment and desire... testing . Perform back-up testing to ensure all systems are connected to the customer's network more
    BlackBox (11/18/25)
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  • Secret Windows Systems Administrator

    Insight Global (Dahlgren, VA)
    …configurations to ensure data integrity. The candidate must also collaborate with Information System Security Officer (ISSO) to obtain system accreditation ... Job Description Insight Global is seeking a Windows Systems Administrator based in Dahlgren, Virginia, to deliver...to ensure data safety. -Experience collaborating with the Information System Security Officer (ISSO) to obtain … more
    Insight Global (01/13/26)
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  • Systems Engineer, Senior

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    …for system design, configuration, and troubleshooting procedures. * Security Implementation: Ensuring systems are protected from unauthorized access ... components, to meet organizational needs. They analyze user requirements, develop system architectures, and ensure systems are functioning optimally. Their… more
    CGI Technologies and Solutions, Inc. (12/30/25)
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  • Production Operations Systems Engineer

    SAIC (VA)
    …Experience with network monitoring and diagnostic tools. + Knowledge of security best practices for production systems . + Experience implementing security ... router switches, etc. + Implement continuous improvement methodology through the use of IT systems or procedure. + Maintain inventory of system assets. + Ensure… more
    SAIC (12/31/25)
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