• Sr . System Administrator ( Linux )

    Nightwing (Sterling, VA)
    …management and providing technical services to enable customer mission accomplishment. The Senior System Administrator ( Linux ) will serve as a key member ... federal data centers. This position is hands-on and requires expertise in Linux administration, automation, and security hardening. The Senior System… more
    Nightwing (10/29/25)
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  • Sr Software Engineer

    Actalent (Manassas, VA)
    Sr Software Engineer ! Job...Linux platforms. Responsibilities + Design, develop, and integrate software components using Java and C/C++ in a ... Description We are seeking a highly skilled Sr Software Engineer to join...Linux OS environment. + Implement and optimize Linux /Unix socket programming for high-performance communications. + Develop and… more
    Actalent (11/14/25)
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  • Principal/ Sr . Principal Cyber…

    Northrop Grumman (Chantilly, VA)
    …of your career. We are looking for you to join our team as a **Principal** **Cyber Software Test Engineer ** and ** Sr . Principal** **Cyber Software Test ... environment learning new tools and processes + Test new software applications in various environments (eg Windows, Linux...to prioritize bugs until resolution **Basic Qualifications for a Sr . Principal Cyber Software Test Engineer more
    Northrop Grumman (11/01/25)
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  • Sr . Software Engineer

    Leidos (Alexandria, VA)
    …of the Decision Advantage Solutions Business Area, is currently seeking a highly motivated Sr . Software Engineer for the Chinook Program. The Chinook Program ... the GEOINT enterprise through secure, agile, and cloud-native development. As a senior engineer , you will lead technical development efforts, drive DevSecOps… more
    Leidos (10/05/25)
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  • Sr . Software Engineer

    Leidos (Arlington, VA)
    **Description** Leidos is presently seeking a ** Sr .** ** Software Engineer ** in support of the Defense Information Systems Agency GSMO-II Program. The ... security scans and security implementation guidelines (eg STIGs). + Experience developing software on a Linux platform (RHEL 9), including experience working… more
    Leidos (11/09/25)
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  • Sr . Software Engineer TS/SCI…

    Leidos (Alexandria, VA)
    **Description** Leidos has an exciting opportunity for a Sr . Software Engineer ! *Must have an active TS/SCI Polygraph up front. No exceptions.* You will ... perform software development lifecycle (SDLC) activities as both an individual...and shared actions for developers and testers. You will engineer , author, tune and document automation scripts in a… more
    Leidos (09/10/25)
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  • Sr . Principal Cyber Software

    Northrop Grumman (Chantilly, VA)
    …position will be located at a Mission Systems Sector site in Chantilly, VA. As a Senior Software Engineer on the Mobile Development team, you will be ... best work of your career. **Northrop Grumman Mission Systems** is seeking an experienced ** Senior Principal Cyber Software Engineer ** to join our team… more
    Northrop Grumman (10/21/25)
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  • Sr . Software Engineer

    Leidos (Arlington, VA)
    **Description** Leidos is seeking a Senior Software Engineer to support the maritime autonomy team. In this position you will work in a diverse environment ... features and performance improvements. + Implement, and testing C++ software for Linux systems. + Experience with interface communication standards / protocols… more
    Leidos (09/05/25)
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  • Software Engineer Sr

    Lockheed Martin (Herndon, VA)
    …of space\- based programs in support of national security\. We are seeking a Software Engineer to participate in the design, development, test and maintenance of ... Mission Management and/or Command and Control domains\. As a Software Engineer with Paragon, you will: *...and more\. **Basic Qualifications:** * Experience developing backend application software on a Linux platform using the… more
    Lockheed Martin (10/18/25)
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  • Sr Software Engineer

    Shuvel Digital (Dulles, VA)
    …introducing new cyber capabilities to address emerging threats. Raytheon is seeking a Senior Software Engineer to support the design, development, and ... Title: Senior Software /Security Engineer (CyberSecurity)...networking skills + In depth knowledge of Windows, and Linux operating systems + Understanding of Cloud technologies, methodologies,… more
    Shuvel Digital (09/25/25)
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