• Principal Software Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …architecture making an impact on a software engineering team + Active Top Secret US Security Clearance w/ SCI eligibility is required **Qualifications We ... more (https://www.sncorp.com/careers/total-rewards/) . **IMPORTANT NOTICE:** This position requires current/active Top Secret with SCI eligibility US Security… more
    Sierra Nevada Company, LLC (08/08/25)
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  • Embedded Cyber Software Engineer

    Lockheed Martin (Denver, CO)
    **Description:** You will be an Embedded Cyber Software Engineer for a research and development team which is responsible for investigating and exploiting the ... **What You Will Be Doing** As an Embedded Cyber Software Engineer , you will be responsible for...CITIZEN \- The selected candidate must possess an active Top Secret clearance with SCI eligibility to… more
    Lockheed Martin (10/10/25)
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  • Cyber Software Test Engineer

    Lockheed Martin (Denver, CO)
    …**MUST BE AU\.S\. CITIZEN** - The selected candidate must possess an active Top Secret clearance with SCI eligibility to start\. \#LI\-CS1 **Basic ... **Description:** You will be the **Cyber Test Exploitation Engineer ** for the research and development team, responsible for designing, executing, and automating… more
    Lockheed Martin (10/10/25)
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  • Software Engineer

    Parsons Corporation (Colorado Springs, CO)
    …highly respected subject matter experts with brilliant technologists. Are you an experienced software engineer looking to grow your skillset and work on a ... Our team is looking for a mid-range full stack software engineer with an enterprise software...AWS Cloud Practitioner Certification **Security Clearance Requirement:** An active Top Secret SCI security clearance is required… more
    Parsons Corporation (09/03/25)
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  • Software Engineer

    CACI International (Denver, CO)
    Software Engineer Job Category: Engineering Time Type:...this position you will be required to obtain a Top Secret clearance.** - ** ** **What You ... demonstrate breadth and flexibility by contributing at various levels of software development including firmware, device drivers, real-time operating systems (RTOS)… more
    CACI International (10/09/25)
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  • Software Quality Engineer Senior

    Lockheed Martin (Littleton, CO)
    …by November 2025** **Basic Qualifications:** * Current US Citizenship * Active Top Secret security clearance * Knowledge of quality systems/processes and ... * Lean/Six Sigma black \(or green\) belt * ASQ Certified Software Quality Engineer \(CSQE\) * Knowledge of AS9100 requirements **Security Clearance Statement:**… more
    Lockheed Martin (10/03/25)
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  • Software Engineer Staff - Space…

    Lockheed Martin (Littleton, CO)
    **Description:** Space Protection Programs is seeking an experienced Software Engineer who can guide a team through complex mission software development ... Candidate must have the ability to take ownership of software development and software integration activities\. The...must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should… more
    Lockheed Martin (07/30/25)
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  • Software Engineer SME

    Leidos (Aurora, CO)
    …of the Decision Advantage Solutions Business Area, is currently seeking an experienced Software Engineer Subject Matter Expert (SME) for the Chinook Program. The ... + Tucson, AZ **Clearance Level Required:** **Must have a** ** Top Secret with SCI eligibility and able...a Polygraph.** **Primary Responsibilities:** + Serve as the lead software engineer and technical advisor for mission… more
    Leidos (10/05/25)
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  • Full-stack (Front-end focused) Software

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... quality product. **About the job** : This requisition is sourcing a Full-Stack Software Engineer with a focus on the Front-end. A good candidate will have two… more
    Northrop Grumman (10/16/25)
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  • Software Quality Engineer - Mission…

    Lockheed Martin (Littleton, CO)
    …locations will vary based on actual hiring job postings\. **Basic Qualifications:** * Active Top Secret clearance with the ability to obtain and maintain a ... systems which support our nation's defense systems\.** We are seeking a Software Quality Engineer to join our team ensuring the highest standards of quality… more
    Lockheed Martin (09/13/25)
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