• Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …have an active Secret at the time of hire with the ability to obtain a Top Secret with SCI. + Must be a US Citizen. Preferred Additional Skills: + Active ... of a team that supports the requirements, design, development, test , and integration of complex, specialized hardware/ software ...Top Secret with SCI. + CI Poly.… more
    L3Harris (11/01/25)
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  • Sr Staff Cyber Systems Engineer

    Northrop Grumman (San Antonio, TX)
    …current/active DoD Secret clearance + The ability to obtain and maintain a DoD Top Secret w/SCI clearance is required. + The ability to obtain and maintain a ... join our team as a Sr Staff Cyber Systems Engineer to join the Sentinel Mission Defense Team based...Briefed to the Sentinel program + A current/active DoD Top Secret w/SCI and SAP access +… more
    Northrop Grumman (11/15/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …active Secret clearance at the time of hire with the ability to obtain a Top Secret with SCI. + Must be a US Citizen. Preferred Additional Skills: + Active ... of a team that supports the requirements, design, development, test , and integration of complex, specialized hardware/ software ... Top Secret with SCI. + CI Poly.… more
    L3Harris (11/01/25)
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  • Sr. Scientist, Systems Engineer

    L3Harris (Greenville, TX)
    …+ Travel up to 10% of the time. + Ability to obtain and maintain a Top Secret with SCI. Clearance. + Other duties as assigned by Supervisor. Qualifications: + ... interest of national security. Job Title: Sr. Scientist, Systems Engineer Job Code: 30671 Job Location: Greenville, TX (On-Site)...be a US Citizen. Preferred Additional Skills: + Active Top Secret with SCI. #LI-AH1 L3Harris Technologies… more
    L3Harris (11/01/25)
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  • Systems Engineer

    Actalent (Richardson, TX)
    …tools. + Proficiency with Microsoft Office tools. + Ability to obtain a DoD Top Secret security clearance. Additional Skills & Qualifications + Bachelor's degree ... Job Title: Systems Engineer Job Description We are seeking a talented...in engineering or equivalent related experience. + Current Secret or Top - Secret security clearance.… more
    Actalent (11/07/25)
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  • Senior AI Engineer (Computer Vision,…

    Lockheed Martin (Fort Worth, TX)
    …etc\.\) Experience leading other engineers or small teams Familiarity with transitioning prototype software to production Top Secret // SCI Clearance ... security clearance, you must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should Know** **Expression of… more
    Lockheed Martin (10/25/25)
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  • Senior Mechanical Engineer - Electronics…

    RTX Corporation (Richardson, TX)
    …only US citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Top Secret Job Description Collins Aerospace, an RTX company, is a ... team is seeking a highly motivated Senior Level Mechanical Engineer that is passionate about the development of electronics...+ Active possession of an active US government issued Secret or Top Secret clearance.… more
    RTX Corporation (09/24/25)
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  • Principal Software Engineer (Onsite)

    RTX Corporation (Richardson, TX)
    …global market. Collins Aerospace is seeking a highly motivated and talented Principal Software Engineer with a strong interest in the design, development and ... efforts spanning the product lifecycle, including customer engagement, requirements definition, software /hardware development & integration, as system test &… more
    RTX Corporation (09/21/25)
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  • Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …of aircraft RF and satellite communications systems, or cryptographic equipment. + Must have an active Top Secret with SCI at the time of hire. + Must be a US ... SE is part of a team that supports the requirements, design, development, test , and integration of complex, specialized hardware/ software systems installed on… more
    L3Harris (11/08/25)
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  • Senior Principal Systems Engineer

    RTX Corporation (Mckinney, TX)
    …ABET approved college or university. + Active and transferable US government issued Top Secret security clearance + Experience in technical writing (eg, System ... + Participate in collaborative, cross-discipline integrated product teams composed of systems, software , test , and hardware engineers + Have the opportunity to… more
    RTX Corporation (11/04/25)
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