• Systems Integration and Test Engineer Sr.

    Lockheed Martin (Littleton, CO)
    …Experience working on AGILE software scrum teams\. \#LMSpaceSystemsEng \#Erebus ** Security Clearance Statement:** This position requires a government ... and help us build next generation of geospatial intelligence software and support critical national security missions\....security clearance , you must be a US Citizen for consideration\.… more
    Lockheed Martin (01/16/26)
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  • Adversary Emulation Engineer

    The MITRE Corporation (Colorado Springs, CO)
    …spaces? MITRE's Cyber Infrastructure Protection Innovation Center is seeking a cyber security engineer to develop and support its adversary emulation ... IOT with an interest in adversary emulation, protocol analysis, software development, threat-informed defense, and security operations....US citizen in order to obtain a Top Secret clearance within one year of hire. + This position… more
    The MITRE Corporation (01/13/26)
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  • SW/HW Systems Engineer

    Lockheed Martin (Littleton, CO)
    …* Experience with Command and Telemetry Databases * Eligible for TS/SCI security clearance , therefore U\.S\. Citizenship is required\. **Desired Skills:** * ... Lockheed Martin seeks an innovative and talented **SW/HW Systems Engineer ** to join the Global Security team...issues * Active or Current TS/SCI with T5 investigation ** Security Clearance Statement:** This position requires a… more
    Lockheed Martin (12/03/25)
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  • DevOps Engineer - Starfleet (Level 3 OR 4)

    Northrop Grumman (Aurora, CO)
    …degree in a STEM discipline and 6 years experience + **Active Top Secret/SCI security clearance at the time of application** + Ability and willingness to ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the...**Principal (Level 3) OR Sr. Principal (Level 4) DevOps Engineer ** to join our team based in **Aurora, Colorado.**… more
    Northrop Grumman (12/05/25)
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  • Deputy Chief Systems Engineer (Missile…

    L3Harris (Broomfield, CO)
    …of 16 years of prior related experience. + Must have an active TOP SECRET/SCI security clearance + Minimum of 9 years experience in systems engineering roles + ... sea and cyber domains in the interest of national security . Job Title: Deputy Chief Systems Engineer ...of our positions require the ability to obtain a security clearance . Security clearances may… more
    L3Harris (12/18/25)
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  • Systems Engineer Senior Staff (Level 5)

    Lockheed Martin (Littleton, CO)
    …agencies or defense programs * Ability to obtain and maintain a Top Secret/SCI Security Clearance , thus US Citizenship is required **Desired Skills:** * Deep ... worldwide\. Lockheed Martin is looking for a dedicated Systems Engineer to join the team in Waterton, Colorado supporting...and maintaining optical inter\-satellite links \(OISL\) * Active TS/SCI security clearance ** Security Clearance more
    Lockheed Martin (12/30/25)
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  • Systems Engineer Staff (Level 4)

    Lockheed Martin (Littleton, CO)
    …our Littleton, CO campus\. **Basic Qualifications:** * Current/Active DoD Top Secret Security Clearance * Familiarity with Model Based Systems Engineering ... Space is looking for an innovative and experienced Systems Engineer to support the team that designs, develops, fields...mission and end\-to\-end systems expertise * Prior SAP access ** Security Clearance Statement:** This position requires a… more
    Lockheed Martin (12/06/25)
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  • Systems Engineer III

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …NOTICE:** This position requires the ability to obtain and maintain a Secret US Security Clearance . US Citizenship status is required as this position needs an ... way of living. Join our team! As a Systems Engineer , you will be using your skills and expertise...active US Security Clearance for employment. Non-U.S. citizens may… more
    Sierra Nevada Company, LLC (01/06/26)
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  • Sr Principal Engineer Systems - Sys…

    Northrop Grumman (Colorado Springs, CO)
    …non-interface systems engineering activities **Basic Qualifications:** Please list your current security clearance and IAT or relevant certifications on your ... Integration offers an excellent opportunity for a **Sr Principal Engineer Systems - Systems Engineer Interface (26-018...Applicants must have a current, active in-scope DoD-issued Secret security clearance at the time of application,… more
    Northrop Grumman (01/17/26)
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  • Integration and Test Engineer

    Lockheed Martin (Littleton, CO)
    …We are a dynamic team on a recurring multi\- year, critical program seeking a Software Engineer who likes to be challenged and solve problems\. Who We Are: ... with Certificate Administration, STIGs, and Puppet * Possess a current CompTIA Security \+ Certification ** Security Clearance Statement:** This position… more
    Lockheed Martin (01/09/26)
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