• 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: + ... the interest of national security. Job Title: Specialist, Systems Engineer Job Code: 30519 Job Location: Greenville, TX (On-Site)...Simulation experience. + Active DoD Security Clearance at the Top Secret / SCI Level. #LI-AH1 L3Harris… more
    L3Harris (11/01/25)
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  • Sr. Specialist, Systems Engineer (Avionics)

    L3Harris (Greenville, TX)
    …have an Active Secret clearance at the time of hire with the ability to attain Top Secret with SCI . + Must be a US citizen. Preferred Additional Skills: ... interest of national security. Job Title: Sr. Specialist, Systems Engineer (Avionics) Job Code: 29077 Job Location: Greenville, TX...DOORS/Jira. + FAA Compliance and Certification experience. + Active Top Secret with SCI . #LI-AH1… more
    L3Harris (09/24/25)
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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 ... the interest of national security. Job Title: Specialist, Systems Engineer Job Code: 30634 Job Location: Greenville, TX (On-Site)...Citizen. 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)
    …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: + ... 1st Shift 9/80 Job Description: The Sr. Specialist, Systems Engineer (SE) will be responsible for performing technical planning,...Active Top Secret with SCI . +… 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: + ... 1st Shift 9/80 Job Description: The Sr. Specialist, Systems Engineer (SE) performs technical planning, system integration, verification and...Active Top Secret with SCI . +… more
    L3Harris (11/01/25)
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  • Sr. Principal Air Vehicle System Test…

    Northrop Grumman (Winters, TX)
    …that is in-scope or currently enrolled in CE, with the ability to obtain a Top - Secret / SCI clearance within a reasonable amount of time to meet business ... has an opening for a **Air Vehicle System Test Engineer - Engineering Field Service Representative** (FSR) to join...location after the initial 24-month assignment. + Active DoD Top Secret clearance that is in-scope or… more
    Northrop Grumman (11/16/25)
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  • Senior AI Engineer (Computer Vision,…

    Lockheed Martin (Fort Worth, TX)
    …other engineers or small teams Familiarity with transitioning prototype software to production Top Secret // SCI Clearance **Security Clearance Statement:** ... 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 Systems Engineer (Onsite)

    RTX Corporation (Richardson, TX)
    …Managed by Collins Aerospace** Collins Aerospace is looking for a talented **Senior Systems Engineer ** **with an active TS / SCI clearance** to work onsite in ... modernization. + You will work with the Lead Systems Engineer to ensure the overall system execution is reliable,...Server experience + **Active and transferable US government issued** ** TS / SCI security clearance** **is required prior to… more
    RTX Corporation (09/03/25)
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  • Specialist, Integration / Test Engineer

    L3Harris (Greenville, TX)
    …+ A current DOD Secret Security Clearance with the ability to obtain TS / SCI + 2+ years of experience or an equivalent combination of education and ... of national security. Job Title: Specialist, Integration / Test Engineer Job Code: 30432 Job Location: Greenville, Texas Schedule:...and the ability to obtain and maintain a DOD TS / SCI clearance, which requires US citizenship. +… more
    L3Harris (11/01/25)
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  • Sr IT Systems Engineer - Pub SEC

    Lumen (San Antonio, TX)
    …upgrades **What We Look For in a Candidate** Basic Qualifications: + **Requires a Top Secret / SCI clearance** + On-call after hours/on-call support as ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...and shape the future. **The Role** The IT Systems Engineer II provides advanced Tier II support by troubleshooting… more
    Lumen (11/20/25)
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