• Principal Java Software Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with Poly - Current At Raytheon, the foundation of everything ... to drive innovation. **Qualifications You Must Have** + Active and transferable ** TS / SCI with Polygraph** US government issued security clearance **with an… more
    RTX Corporation (10/13/25)
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  • Senior Software Infrastructure Engineer

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with Poly - Current At Raytheon, the foundation of everything ... **Qualifications You Must Have** + Active and transferable US government issued ** TS / SCI with Polygraph** security clearance is required prior to start… more
    RTX Corporation (10/13/25)
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  • Cleared Software Engineer Intern - Summer

    CACI International (Denver, CO)
    …Job Category: Intern/Co-op Time Type: Part time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Part-Time On-Call Percentage of Travel ... **Qualifications:** _Required:_ + Must be able to obtain and maintain applicable TS / SCI with Poly. + Must currently be enrolled in a full-time Undergraduate,… more
    CACI International (10/08/25)
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  • Delivery Consultant, WWPS ProServe

    Amazon (Denver, CO)
    …the candidate selected be a US Citizen and must currently possess an active Top Secret security clearance. The position further requires that, after start, the ... selected candidate obtain and maintain an active TS / SCI security clearance with polygraph and satisfy other security related requirements. Key job… more
    Amazon (10/10/25)
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  • Principal/Sr. Principal RF Microwave Design…

    Northrop Grumman (Aurora, CO)
    …in Electrical Engineering or Physics with 4 years of relevant experience + Active TS / SCI Clearance at the time of application. + Aerospace industry experience, ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time **Description**...has an opening for a **_Principal RF Microwave Design Engineer / Sr. Principal RF Microwave Design Engineer_** to… more
    Northrop Grumman (11/20/25)
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  • GNC Hardware Engineer - GPSR/IMU (Level II)

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of ... to obtain, and maintain, a minimum clearance level of TS / SCI for long\-term employment on this program\....candidate's final work location\. Please note that the salary information is a general guideline only\. Lockheed Martin considers… more
    Lockheed Martin (12/20/25)
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  • Senior Satellite Systems Engineer

    Lockheed Martin (Aurora, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI w/Poly **Other Important Information You Should Know** ... and must meet eligibility requirements for access to classified information \. If you are looking to develop your technical...while meeting competing deadlines * Must have an active TS / SCI clearance and CI poly **Desired Skills:**… more
    Lockheed Martin (11/23/25)
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  • Cloud Enterprise Engineer , US National…

    Amazon (Denver, CO)
    …selected be a US Citizen and must currently possess and maintain an active TS / SCI security clearance with polygraph. About the team About AWS AWS values ... as a technical lead - Current, active US Government Security Clearance of TS / SCI with Polygraph Preferred Qualifications - 5+ years of technical engineering… more
    Amazon (11/20/25)
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  • Engineer Senior Principal II - Payload…

    BAE Systems (Broomfield, CO)
    …the intelligence community. + Current, active TS / SCI or DOD TS security clearance. **Pay Information ** Full-Time Salary Range: $146670 - $249330 Please ... incentives may be available based on position level and/or job specifics. ** Engineer Senior Principal II - Payload Performance Lead** **117533BR** EEO Career Site… more
    BAE Systems (10/29/25)
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  • Associate Technical Fellow

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …solutions for product development. + Experience or certification in INCOSE standards. + Active Secret or Top Secret / SCI Security Clearance. **What you ... effectively integrate into program execution. + The ability to obtain and maintain a Top Secret Security Clearance is required. Learn more about the background… more
    Sierra Nevada Company, LLC (12/17/25)
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