• Senior Systems Administrator (Unix/Linux)

    TekSynap (Dahlgren, VA)
    …**RESPONSIBILITIES** + Install, configure, andmaintainUnix/Linux operating systems andassociatedhardware/ software components in a secure DoD environment. + ... operational systems and COTS software ;performance tuning; and hardware/ software /network troubleshooting. + Must meet DoD IAT Level III certification… more
    TekSynap (10/31/25)
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  • Senior Systems Engineer

    Lockheed Martin (Mount Laurel, NJ)
    …need arises by the supported program\. \- The ability to obtain and maintain DoD Secret Level Clearance, which requires U\.S\. Citizenship **Desired Skills:** \- ... collaborate with the customer in performing test and evaluation activities\. The Senior Systems Engineer will also work with internal software teams to isolate… more
    Lockheed Martin (10/31/25)
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  • Principal Engineer Systems (25-446)

    Northrop Grumman (Colorado Springs, CO)
    …Candidates must have experience working in a collaborative team environment with other systems , software , and specialty engineers to develop solutions + The ... resume, if applicable. + A Bachelor's Degree in **STEM** Computer Science, Systems Engineering, Software Engineering, Mathematics, Physics, or a related field… more
    Northrop Grumman (09/13/25)
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  • Software Engineer / Game Engine Developer…

    Lockheed Martin (Fort Worth, TX)
    …will need to be a US Citizen, and be able to obtain and maintain a US DoD SECRET clearance, to support this government contract, as well as successfully pass a ... **Description:** You will be the Senior Software Engineer for the Virtual Prototyping group\. Our team delivers advanced visualization, simulation, and digital‑twin… more
    Lockheed Martin (11/12/25)
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  • Lead Systems Engineer

    Chenega Corporation (Redstone Arsenal, AL)
    …STEM and 12+ years working on missile defense-related or other complex, large DoD program/project. + Active Secret clearance. + Technical understanding and ... personnel. + Exceptional written and verbal skills required. + Experience with DoD terrestrial and satellite communication systems (MILSATCOM). + Ability to… more
    Chenega Corporation (09/15/25)
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  • Sentinel Sr. Principal Software Engineer…

    Northrop Grumman (Huntsville, AL)
    …PhD or 4 additional years in lieu of a degree. * US Citizenship with Active DoD Secret clearance with a reinvestigation date occurring in the last 6 years. * ... to fit your life and launch your career today. Northrop Grumman Defense Systems is seeking **Sr. Principal Engineer Software - 15349.** This position… more
    Northrop Grumman (11/19/25)
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  • Software Engineer (Engineer Software

    Huntington Ingalls Industries (Suffolk, VA)
    …Full Time/Salaried/Exempt Anticipated Salary Range: $56,566.00 - $80,000.00 Security Clearance: Secret Level of Experience: Entry Level This opportunity resides with ... its fleet. With a holistic approach to life-cycle maritime defense systems -from small watercraft to submarines, surface combatants and aircraft carriers-HII ensures… more
    Huntington Ingalls Industries (11/07/25)
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  • Senior Principal Systems Engineer…

    RTX Corporation (Mckinney, TX)
    …can be located in McKinney, TX or El Segundo, CA. **This position requires an active DoD Secret security clearance prior to the first day in order to access ... :** + Participate in collaborative, cross-discipline integrated product teams composed of systems , software , test, and hardware engineers + Have the opportunity… more
    RTX Corporation (11/04/25)
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  • Full Time - Software Development Engineer…

    RTX Corporation (Portsmouth, RI)
    …higher level programming language. + Knowledge of data structures and algorithms, systems software design, operating systems , architectures, software ... citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Secret At Raytheon, the foundation...Portsmouth, Rhode Island. You will work within the Maritime Systems & Platforms Software Department. We strive… more
    RTX Corporation (11/22/25)
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  • Senior/Principal Cybersecurity Software

    Sandia National Laboratories (Livermore, CA)
    …staff, management, and customers to implement solutions that address requirements. Architect software systems , develop code, write unit tests, and create ... PL/SQL, SQLite) and Non-Relational Databases (eg NoSQL, Cassandra). + Experience designing software systems with a minimum cyber-attack surface while avoiding… more
    Sandia National Laboratories (11/20/25)
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