• Sr. Scientist, Systems Engineer

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

    L3Harris (Greenville, TX)
    …+ Must have an active Secret DoD Clearance with abilty to obtain and maintain a Top Secret with SCI . + Must be able to work weekends, On-call, and 10-15% ... in the interest of national security. Job Title: Lead, Systems Engineer Job Code: 32199 Job Location:...be a US Citizen. Preferred Additional Skills: + Active TS w/ SCI . #LI-AH1 L3Harris Technologies is proud… more
    L3Harris (12/18/25)
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  • Specialist, Information Security…

    L3Harris (Waco, TX)
    …sea and cyber domains in the interest of national security. Job Title: Specialist, Information Security Systems Engineer Job Code: 31929 Job Location: Waco, ... user and system requirements and constraints. + Ensure delivered information systems meet security standards in accordance...and the ability to obtain and maintain a DoD TS / SCI clearance (Requires US citizenship) Preferred Additional… more
    L3Harris (12/12/25)
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  • Senior Systems Engineer (Onsite)

    RTX Corporation (Richardson, TX)
    …by Collins Aerospace** Collins Aerospace is looking for a talented **Senior Systems Engineer ** **with an active TS / SCI clearance** to work onsite in ... and/or modernization. + You will work with the Lead Systems Engineer to ensure the overall system...Server experience + **Active and transferable US government issued** ** TS / SCI security clearance** **is required prior to… more
    RTX Corporation (12/03/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …an active Secret Clearance at the time of hire, with the ability to obtain Top Secret ( TS / SCI ) Security Clearance. + Must successfully obtain a class ... Job Schedule: 1st Shift 9/80 Job Description: The Senior Systems Engineer Specialist will be responsible for...+ Experience with RC-135 Big Safari aircraft. + Active Top Secret with SCI . #LI-AH1… more
    L3Harris (11/08/25)
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  • Systems Engineer Stf - Level 4

    Lockheed Martin (Fort Worth, TX)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should Know** **Expression ... **Description:** You will be the Systems Engineer for the Integration and...conflict, and manage interpersonal dynamics * Security\+ Certification * TS / SCI Clearance will be required for this… more
    Lockheed Martin (12/17/25)
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  • Senior Security Systems Engineer

    Cydecor, Inc. (Crystal City, TX)
    …Environment (CE) training within six (6) months of hire. Security Clearance: + Active Top Secret or higher required ( SCI eligibility preferred). + Any ... us. Job Description: Cydecor is seeking a Senior Security Systems Engineer to support cybersecurity and ...Validator supporting SLBM must also possess TS with SCI eligibility. Education: + Bachelor's… more
    Cydecor, Inc. (12/21/25)
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  • Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …MCS systems . + Must successfully pass a class III flight physical. + Must have an active Top Secret with SCI at the time of hire. + Must be a US Citizen. ... in the interest of national security. Job Title: Specialist, Systems Engineer Job Code: 30634 Job Location:...Preferred Additional Skills: + Security+ Certification. + Active Top Secret with SCI . #LI-AH1… more
    L3Harris (11/01/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …Must 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: + ... Schedule: 1st Shift 9/80 Job Description: The Sr. Specialist, Systems Engineer (SE) performs technical planning, system...Active Top Secret with SCI . +… more
    L3Harris (11/01/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …an 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: + ... Schedule: 1st Shift 9/80 Job Description: The Sr. Specialist, Systems Engineer (SE) will be responsible for...Active Top Secret with SCI . +… more
    L3Harris (11/01/25)
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