• Principal Human Factors Engineer

    RTX Corporation (Aurora, CO)
    …US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship ... required, as only US citizens are eligible for a security clearance ​ ** Security Clearance...exciting opportunity for a highly motivated Principal Human Factors Engineer to join us onsite in a closed area… more
    RTX Corporation (10/23/25)
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  • Senior. Platform Engineer - Linux (FEP)…

    RTX Corporation (Aurora, CO)
    …US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship ... required, as only US citizens are eligible for a security clearance ​ ** Security Clearance...talented **Senior Platform Linux - (Front End Processor (FEP) Engineer )** with experience in traditional infrastructure design to support… more
    RTX Corporation (10/17/25)
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  • Principal OR Senior Principal Field Service…

    Northrop Grumman (Keystone, CO)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees ... to add a **Principal OR Senior Principal Field Service Engineer - Network and Communications** to join our team...of Comms and Networks equipment to include radio terminals, software loads, switches, routers, and firewalls required to support… more
    Northrop Grumman (09/17/25)
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  • Senior Systems Engineer

    RTX Corporation (Colorado Springs, CO)
    …US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship ... required, as only US citizens are eligible for a security clearance ​ ** Security Clearance...Interoperability for Domestic and International customers. The Senior Systems Engineer will be part of a Modeling and Simulation… more
    RTX Corporation (11/12/25)
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  • Senior Principal Radar Systems Engineer

    RTX Corporation (Colorado Springs, CO)
    …US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship ... required, as only US citizens are eligible for a security clearance ​ ** Security Clearance...Domestic and International customers. The Senior Principal Radar Systems Engineer will be part of a Colorado Springs, Colorado-based… more
    RTX Corporation (10/01/25)
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  • Systems Integration & Verification Engineer

    Lockheed Martin (Boulder, CO)
    Software Development Lifecycles * Ability to travel to customer sites * DoD Secret security clearance and ability to obtain a TS/SCI security clearance ... * Active CompTIA certification \( Security \+\) * OPIR program experience/exposure ** Security Clearance Statement:** This position requires a government … more
    Lockheed Martin (11/10/25)
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  • Senior DevSecOps Engineer Full Time Remote

    Lockheed Martin (Colorado Springs, CO)
    security controls with the overall cloud architecture\. Partner with the Lead Software Engineer , AI/ML Engineers, UX Designer, and I&T Team to validate that ... to AWS\. **\- Security Integration** - Embed security scans \(static analysis & software composition...development\. Certifications such as CISSP, CISA, CCSK, or CEH\. ** Security Clearance Statement:** This position requires a… more
    Lockheed Martin (11/12/25)
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  • Principal System Safety Engineer

    RTX Corporation (Aurora, CO)
    …US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship ... required, as only US citizens are eligible for a security clearance ​ ** Security Clearance...exciting opportunity for a highly motivated **Principal System Safety Engineer ** to join us on the Air and Space… more
    RTX Corporation (10/31/25)
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  • Senior DevSecOps Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship ... required, as only US citizens are eligible for a security clearance ​ ** Security Clearance...We have an exciting opportunity for a Senior DevSecOps Engineer to join our high-impact team supporting a mission-critical… more
    RTX Corporation (10/01/25)
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  • Information Security Engineer

    Lumen (Denver, CO)
    …world and shape the future. **The Role** Black Lotus Labs is seeking a Principal Security Engineer on the Research & Analysis team. This team leverages Lumen's ... + Spearhead thought leadership initiatives by leading Black Lotus Lab's voice at security conferences and internal executive briefings. **What We Look For in a… more
    Lumen (11/05/25)
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