• Software Developer / Engineer

    CACI International (Aurora, CO)
    Software Developer / Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular ... None Anticipated Posting End: 11/6/2026 CACI is seeking a Software Developer to join a multidisciplined team to work...CACI facilities in Sterling, VA or Aurora, CO * Clearance : Must have TS /SCI with poly (or… more
    CACI International (10/21/25)
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  • UAS Conceptual Design Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …think creatively to develop innovative design solutions. + **Ability to obtain/maintain a Top Secret US Security Clearance is required** **Qualifications We ... seeking a highly skilled and innovative UAS Conceptual Design Engineer to join our dynamic engineering team. This role...position requires the ability to obtain and maintain a Top Secret US Security Clearance .… more
    Sierra Nevada Company, LLC (11/21/25)
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  • Sr Systems Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …and Verification and Validation (V&V) principles + The ability to obtain and maintain a Top Secret US Security Clearance is required + Systems Engineering ... SNC is on the lookout for a Systems Engineer with expertise in sensor systems to support...position requires the ability to obtain and maintain a Top Secret US Security Clearance .… more
    Sierra Nevada Company, LLC (09/24/25)
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  • Chief Engineer - Level 7

    Northrop Grumman (Aurora, CO)
    …organizations to achieve a common goal. + Must have US Citizenship with an Active DOD Top Secret clearance with SCI at time of application + Demonstrated ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret ...Northrop Grumman Space Systems (NGSP) is seeking a Chief Engineer located in **Aurora, CO.** This role will serve… more
    Northrop Grumman (11/18/25)
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  • Project Engineer II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …requirements management, system design, integration + The ability to obtain and maintain a Top Secret US Security Clearance is required + **Domain ... We are seeking a highly skilled Project Engineer with expertise in sensor systems to support...position requires the ability to obtain and maintain a Top Secret US Security Clearance .… more
    Sierra Nevada Company, LLC (11/20/25)
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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...the impact of your work. **Qualifications:** **Required:** + Active TS /SCI with the ability to obtain a polygraph +… more
    CACI International (10/23/25)
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  • Software Engineer Staff

    Lockheed Martin (Boulder, CO)
    …and Exploitation \(APEX\) team within Lockheed Martin Space is seeking a skilled software engineer to support ongoing programs and internal research and ... development and low\-level programming * Ability to obtain a secret government clearance **Desired Skills:** * Experience..., you must be a US Citizen for consideration\. ** Clearance Level:** TS /SCI **Other Important Information You… more
    Lockheed Martin (10/31/25)
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  • Network Operations Center Help Desk…

    L3Harris (Colorado Springs, CO)
    …Colorado Springs, CO site. The Senior Network Specialist Engineer requires an active Top Secret Clearance with SCI eligibility. They will have a strong ... interest of national security. Job Title: Sr. Associate Network/Helpdesk Engineer Job Code: 30366 Job Location: Colorado Springs, CO...8140 (eg CISSP or Security+) + Must have a Top Secret clearance with eligibility… more
    L3Harris (10/26/25)
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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 ... Systems Engineers to understand requirements and provide feedback * Interface with Software and Integration Engineers to containerize, test, and deploy services *… more
    CACI International (10/16/25)
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  • Systems Engineer - Requirements…

    Lockheed Martin (Littleton, CO)
    …government security clearance , you must be a US Citizen for consideration\. ** Clearance Level:** Top Secret **Other Important Information You Should ... and verification \(including requirement engineering, requirements management, verification\) * Active security clearance \( Secret or Top \- Secret \) *… more
    Lockheed Martin (08/27/25)
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