• Mid System Administrator

    Parsons Corporation (Quantico, VA)
    Windows and Azure server environments **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required for this ... **What You'll Be Doing:** + Maintains smooth operation of multi-user computer systems , including coordination with network engineers. + Monitors and manages system… more
    Parsons Corporation (11/15/25)
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  • Network Engineer

    Jacobs (Chantilly, VA)
    Knackworks, a Jacobs Company, has an opening for a Network Engineer (Campus Area Network/Local Area Network (CAN/LAN)) to support our government customer's global ... a modern service provider network architecture. The job duties of the Network Engineer (CAN/LAN) are as follows: * Interpret customer requirements and apply standard… more
    Jacobs (12/12/25)
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  • Security Engineer

    Leidos (Lorton, VA)
    …a degree. + 5-8+ years of hands-on experience administering and securing Linux systems in an enterprise environment. + Active TS /CI government security clearance ... at Leidos currently has an opening for a Security Engineer to work in our Lorton, VA office. This...(eg, FISMA, FedRAMP, PCI-DSS, HIPAA, SOX). + Familiarity with Windows server hardening and cross-platform vulnerability management. + Experience… more
    Leidos (12/11/25)
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  • Architecture Network Engineer

    Leidos (Chantilly, VA)
    …Modernization Sector at Leidos** **has an opening for a** **Network** ** Engineer (Campus Area Network/Local Area Network (CAN/LAN))** to support global enterprise ... modern service provider network architecture. **The job duties of the Network Engineer (CAN/LAN) are as follows:** + Interpret customer requirements and apply… more
    Leidos (12/09/25)
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  • Network Engineer 4

    M. C. Dean (Springfield, VA)
    …seeking a **Network Engineer 4** to join our **Security and Electronic Systems (SES)** business Unit. As part of **(SES)** Strategic Business Unit you will be ... telecommunications, life safety, automation and controls, audiovisual, and IT systems . Headquarters in Tysons, Virginia, MC Dean delivers resilient, secure,… more
    M. C. Dean (01/08/26)
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  • Full Stack Infrastructure Engineer

    Nightwing (Sterling, VA)
    …mitigation countermeasures as necessary. **Required Qualifications:** + US Citizenship + Active Secret clearance (with the ability to obtain TS /SCI clearance and ... Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers'… more
    Nightwing (01/07/26)
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  • Software Test Engineer

    KBR (Chantilly, VA)
    …and regression testing for existing applications + Strong experience using Unix or Windows + Experience using tracking systems for issues and problems such ... Title: Software Test Engineer Belong. Connect. Grow. with KBR! KBR's National...contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future… more
    KBR (12/31/25)
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  • Principal Network Engineer

    Leidos (Mclean, VA)
    …**Leidos** has a new and exciting opportunity for a **Principal Network Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... technologies, scripting skills with shell, python, PERL and the like, supporting Windows and Unix environments, as well as proven experience installing and… more
    Leidos (01/09/26)
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  • Product Management Engineer

    ManTech (Herndon, VA)
    **MANTECH** seeks a motivated, career- and customer-oriented **Product Management Engineer ** to join our team in **Herndon, VA** . In this role, you will support a ... and operations teams. **Preferred Qualifications** + Knowledge of TEMPEST systems and associated requirements. + Experience installing and maintaining server-based… more
    ManTech (01/09/26)
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  • Senior Splunk Cyber Security Engineer

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career, and customer-oriented **Senior Splunk Cyber Security Engineer ** to join our team in **Chantilly, VA.** In this role, you will ... play a key role in maintaining and tuning Splunk systems , while collaborating with technical teams and cyber analysts...(ES) operations and configurations + Proficiency with Unix and Windows environments + DoD 8570 IAT Level II certification… more
    ManTech (12/30/25)
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