• Sr. Scientist, Systems Engineer

    L3Harris (Greenville, TX)
    …strong leadership experience with Systems, and SIGINT/ELINT. + Must be a US Citizen . Preferred Additional Skills: + Active Top Secret with SCI. #LI-AH1 L3Harris ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (11/01/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …with the ability to obtain a Top Secret with SCI. + Must be a US Citizen . Preferred Additional Skills: + Active Top Secret with SCI. + CI Poly. #LI-AH1 L3Harris ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (11/01/25)
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  • Sr Specialist, Technical Writer

    L3Harris (Greenville, TX)
    …for DoD or Aerospace programs and/or platforms. + Must be a US Citizen . #LI-AM2 L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (11/01/25)
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  • Facilities Maintenance Technician

    RTX Corporation (Dallas, TX)
    …Lemmon Avenue , Dallas, TX, 75209 USA **Position Role Type:** Onsite **U.S. Citizen , US Person, or Immigration Status Requirements:** The ability to obtain and ... security clearance is required.​ US citizenship is required, as only US citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Top… more
    RTX Corporation (10/31/25)
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  • Sr. Spec, Systems Engineering (Mission Systems)

    L3Harris (Greenville, TX)
    …to obtain and maintain a Top Secret with SCI. + Must be a US Citizen . Preferred Additional Skills: + Active Top Secret with SCI. + Security+ Certification. + RC-135 ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (10/30/25)
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  • Lead, Systems Engineering (SIGINT/COMINT)

    L3Harris (Greenville, TX)
    …3 Flight Physical and altitude chamber test. + Must be a US Citizen . Preferred Additional Skills: + Active TS/SCI clearance. + Cybersecurity Certification such as ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (10/26/25)
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  • Lead, Systems Engineer (Network)

    L3Harris (Greenville, TX)
    …architectures across complex mission critical environments. + Must be a US Citizen . #LI-AH1 L3Harris Technologies is proud to be an Equal Opportunity Employer. ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (10/24/25)
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  • Lead, Systems Engineer (CAM) 1

    L3Harris (Greenville, TX)
    …system integration and communications ground/flight test support. + Must be a US Citizen . #LI-AH1 L3Harris Technologies is proud to be an Equal Opportunity Employer. ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (10/24/25)
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  • Sr. Spec, Systems Engineer

    L3Harris (Greenville, TX)
    …maintain a DOD Top Secret (TS/SCI) Security Clearance. + Must be a US Citizen . Preferred Additional Skills: + Active Top Secret with SCI. + Security+ Certification. ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (10/24/25)
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  • Manager, Configuration Management

    L3Harris (Greenville, TX)
    …of Configuration and Data Management experience. + Must be a US Citizen . Preferred Additional Skills: + Basic aircraft knowledge. #LI-AH1 L3Harris Technologies is ... to obtain a security clearance. Security clearances may only be granted to US citizens . In addition, applicants who accept a conditional offer of employment may be… more
    L3Harris (10/24/25)
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