• CNO Developer (All Levels) - TS/SCI…

    Parsons Corporation (Centreville, VA)
    …from their mentorship to grow your skills and support our customer's mission. Your CNO skills will be stretched to the limit as you utilize your creativity to ... discover new solutions to problems, implement capabilities, and help better protect our country. **What You'll Be Doing:** + Design and develop innovative software code for new tools and capabilities in areas related to computer security, vulnerability… more
    Parsons Corporation (08/08/25)
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  • Entry-Level Software or Embedded Engineer/…

    Parsons Corporation (Centreville, VA)
    …Description:** Parsons is looking for an entry-level **TS Cleared Software** or **Embedded Engineer/ Developer ** to join our team! In this role you will work directly ... client computer network defense (CND) and computer network operations ( CNO ) missions into the future. You'll interface directly with...into the future. You'll interface directly with CND and CNO experts to design and develop tools and systems.… more
    Parsons Corporation (08/08/25)
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  • JIRA Developer

    Leidos (Mclean, VA)
    **Description** **Leidos** has a new and exciting opportunity for a **JIRA Developer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and… more
    Leidos (08/01/25)
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  • Windows Software Developer

    Lockheed Martin (Herndon, VA)
    …collaborative work environment that encourages differences and big\-picture thinking\. As a Windows Developer , you will have the opportunity to work on a variety of ... experience including design, implementation, testing, analysis and debugging supporting CNO /CNE\. \- Experience in vulnerability research and applying various… more
    Lockheed Martin (09/25/25)
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  • Software Engineer

    Leidos (Alexandria, VA)
    …is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and ... + Experience in software development on Agile teams using Agile Developer practices such as Pair Programming, Test Driven Development (TDD), Refactoring,… more
    Leidos (09/18/25)
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  • Software Engineer TS/SCI Poly

    Leidos (Alexandria, VA)
    …is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and ... integration. + Experience in software development on Agile teams using Agile Developer practices such as Pair Programming, TDD, Refactoring, and ATDD. + Experience… more
    Leidos (08/26/25)
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