• Spacecraft Harness Engineer - Millennium…

    The Boeing Company (El Segundo, CA)
    …which the US Government requires US Citizenship. An interim and/or final US Top Secret /SCI Clearance Post-Start is required. **Visa Sponsorship** Employer will ... US Government requires US Citizenship. **Preferred Qualifications (Desired Skills/Experience):** + Active DoD TS /SCI Clearance. + Experience with the successful… more
    The Boeing Company (01/07/26)
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  • SkillBridge Fellowship | GEOINT Systems

    RTX Corporation (Beale AFB, CA)
    …a distributed team environment. + Security Clearance: Ability to obtain and maintain a Top Secret /SCI. + Shift Work: Willingness and ability to work a rotating ... Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior… more
    RTX Corporation (11/18/25)
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  • Senior Software Engineer

    RTX Corporation (Anaheim, CA)
    …coding, testing, and debugging complex algorithms + Ability to obtain a US government issued Top Secret SCI ( TS /SCI) security clearance + US citizenship is ... Applied Signal Technology (AST) is seeking a **Senior Software Engineer ** who strives for excellence and have a passion...with Configuration Management tools, such as git + Existing TS /SCI clearance ( Active within the last 24… more
    RTX Corporation (11/28/25)
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  • Machine Learning Engineer IV

    General Atomics (Poway, CA)
    …to senior DoW stakeholders. + Ability to obtain and maintain a Top Secret /SCI clearance is required ( active TS /SCI strongly preferred). **US Citizenship ... 0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** California **Clearance Level:** Top Secret (SCI access eligible) **Pay Range Low:** 140,940… more
    General Atomics (12/11/25)
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  • Flight Software Engineer /Principal Flight…

    Northrop Grumman (Manhattan Beach, CA)
    …Atlassian Tool Suite (Jira, BitBucket, etc.) + Experience using SIMICS, VectorCast, GoogleTest + Active DoD Top Secret /SCI clearance _This position will work ... RT-Linux, GH Integrity) + Candidate must currently have an active DoD Secret clearance at the time...able and willing to obtain and maintain a DoD Top Secret /SCI clearance **Basic Qualifications - Principal… more
    Northrop Grumman (12/13/25)
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  • Guidance, Navigation & Controls Engineer

    The Boeing Company (El Segundo, CA)
    …trade studies, architecture development, and systems integration & analysis + Active TS /SCI clearance + History of working independently to root cause ... which the US Government requires US Citizenship. An interim and/or final US Top Secret /SCI Clearance Post-Start is required. **Visa Sponsorship** Employer will… more
    The Boeing Company (01/03/26)
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  • Astrodynamics Engineer - Millennium Space…

    The Boeing Company (El Segundo, CA)
    …optimization, relative motion maneuvering, orbit determination techniques, etc.) + Possess active TS /SCI clearance **Before applying, please note:** Millennium ... which the US Government requires US Citizenship. An interim and/or final US Top Secret /SCI Clearance Post-Start is required. **Visa Sponsorship** Employer will… more
    The Boeing Company (01/09/26)
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  • Engineer Electrical / Principal…

    Northrop Grumman (Palmdale, CA)
    …STEM discipline and 0 years of related professional/military experience. + Must have an active DoD Top Secret clearance (with a background investigation ... part of history, they're making history. Northrop Grumman Aeronautic Systems has an opening for an **Electrical Engineer...year of related professional/military experience. + Must have an active DoD Top Secret clearance… more
    Northrop Grumman (11/21/25)
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  • Software Engineer , Satellite…

    SpaceX (Hawthorne, CA)
    Software Engineer , Satellite Systems (Starshield) Hawthorne, CA Apply...or similar) + Ability to obtain and maintain a Top Secret or Top Secret ... ultimate goal of enabling human life on Mars. SOFTWARE ENGINEER , SATELLITE SYSTEMS (STARSHIELD) Starshield leverages SpaceX's... SCI clearance ADDITIONAL REQUIREMENTS: + Note that an active clearance may provide the opportunity for you to… more
    SpaceX (12/03/25)
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  • Principal or Senior Principal Network…

    Northrop Grumman (CA)
    …hire physical if determined necessary by Company, based on OCONUS location. + ** Active ** **DoD** ** Top Secret ** clearance (with a background investigation ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...determined necessary by Company, based on OCONUS location. + ** Active ** **DoD** ** Top Secret ** clearance… more
    Northrop Grumman (01/17/26)
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