• Software Engineer - C++, Python,…

    Lockheed Martin (Littleton, CO)
    …which support our nation's defense systems\.** We are seeking a highly skilled Software Engineer to join our advanced systems development team supporting ... locations will vary based on actual hiring job postings\. **Basic Qualifications:** * Active TS /SCI security clearance * Bachelor's degree in Computer Science,… more
    Lockheed Martin (09/13/25)
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  • Senior Cyber Security Engineer (P3)

    RTX Corporation (Aurora, CO)
    …of prior relevant experience + Active and transferable US government issued DoD Top Secret with CI Polygraph security clearance is required prior to start ... Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior… more
    RTX Corporation (11/14/25)
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  • Project Engineer

    Lockheed Martin (Littleton, CO)
    …\- Experience with LM400 product and platform \- Must be a US Citizen\. DoD Top Secret with SCI clearance is required prior to start\. **Desired Skills:** \- ... built for you\. We are seeking an LM400 Project Engineer to support the LM400 Assembly, Integration, and Test...work products under short deadlines\. This position requires a pro\- active attitude and the ability to produce in a… more
    Lockheed Martin (11/12/25)
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  • Software Engineer

    CACI International (Denver, CO)
    Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular Percentage of Travel ... Posting End: 12/1/2025 **The Opportunity:** CACI is seeking a Software Engineer to join a highly energetic...to the impact of your work. **Qualifications:** **Required:** + Active TS /SCI with the ability to obtain… more
    CACI International (10/23/25)
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  • Cyber Software Engineer - Early…

    Lockheed Martin (Denver, CO)
    …is Ours\. Lockheed Martin Space is seeking a full\-time Early Career Cyber Software Engineer \. Your responsibilities will include: + Design, develop, and ... with one or more operating systems: _Linux, Unix, macOS, Windows, Android, iOS_ ** Active TS clearance with SCI eligibility required prior to start\.** **Desired… more
    Lockheed Martin (11/09/25)
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  • Software Engineer

    CACI International (Denver, CO)
    Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage ... investigation of operational issues **Qualifications:** _Required:_ * Java development using Spring * Active TS /SCI with CI Polygraph * 5 years of experience in… more
    CACI International (10/16/25)
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  • Sr Staff Cyber Systems Engineer

    Northrop Grumman (Colorado Springs, CO)
    …in the IASAE 3 role. **Preferred Qualifications:** + Briefed to the Sentinel program + A current/ active DoD Top Secret w/SCI and SAP access + Expertise with ... Software Engineering, and/or Electrical Design. + A current/ active DoD Secret clearance + The ability...+ The ability to obtain and maintain a DoD Top Secret w/SCI clearance is required. +… more
    Northrop Grumman (11/15/25)
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  • RF Engineer , Senior Staff (Level V)…

    Lockheed Martin (Littleton, CO)
    …to be aU\.S\. Citizen\. * Qualified applicants must possess at minimum a currently Active Secret security clearance to be considered\. * Selected candidates will ... Lockheed Martin Space is seeking a **Senior Staff RF Engineer ** to join our team in **Littleton, CO** \!...be required to obtain, and maintain, a government issued Top Secret for long term employment on… more
    Lockheed Martin (11/09/25)
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  • Sentinel Sr. Principal DevOps Engineer

    Northrop Grumman (Colorado Springs, CO)
    …Years with PhD or 04 additional years in lieu of a degree. + US Citizenship with Active DoD Top Secret clearance with a reinvestigation date occurring in the ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the...Bachelor's degree in a STEM field of study. + Active DoD Secret clearance with a reinvestigation… more
    Northrop Grumman (10/30/25)
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  • Sr. Principal Air Vehicle System Test…

    Northrop Grumman (Keystone, CO)
    …at a company selected international or Guam location after the initial 24-month assignment. + Active DoD Top Secret clearance that is in-scope or currently ... has an opening for a **Air Vehicle System Test Engineer - Engineering Field Service Representative** (FSR) to join...enrolled in CE, with the ability to obtain a Top - Secret /SCI clearance within a reasonable amount of… more
    Northrop Grumman (11/16/25)
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