• Principal System Safety Engineer

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI - Current At **Raytheon** , the foundation of everything we ... exciting opportunity for a highly motivated **Principal System Safety Engineer ** to join us on the Air and Space...or equivalent Safety Engineering. + Active US government issued TS / SCI security clearance is required. US citizenship… more
    RTX Corporation (10/31/25)
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  • Terrestrial COMSEC Network Engineer

    CACI International (Colorado Springs, CO)
    …responsible for executing the communications security program, ensuring the protection of sensitive information transmitted network connected and point to point ... Terrestrial COMSEC Network Engineer Job Category: Information Technology Time...Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage… more
    CACI International (10/25/25)
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  • Cyber Security Engineer

    Lockheed Martin (Boulder, CO)
    …\(RMF\) - NIST SP 800‑53\. * Ability to obtain and maintain a DoD Secret clearance \( TS / SCI preferred\)\. **Desired Skills:** * Bachelor's degree in ... to obtain and maintain a DoD clearance up to TS / SCI and the ability to travel\. **Basic...must be a US Citizen for consideration\. **Clearance Level:** Secret **Other Important Information You Should Know**… more
    Lockheed Martin (10/11/25)
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  • Senior Platform DevOps Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with Polygraph At Raytheon, the foundation of everything we do ... safer, more secure world. As a **Senior Platform DevOps Engineer ** , you will herald a transformative era in...Python, Java, Ruby, Bash, C++, C#, Go) + Current TS / SCI with CI Poly security clearance is… more
    RTX Corporation (11/29/25)
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  • Signal Processing Engineer II

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI - Current At Raytheon, the foundation of everything we do is ... + We have an exciting opportunity for a **Systems Engineer II- Signal Processing** to join our team on...functions + Active and transferable US government issued **DOD** ** TS / SCI with Ability to Obtain Special Access… more
    RTX Corporation (12/05/25)
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  • Cable Plant Engineer

    CACI International (Denver, CO)
    Cable Plant Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: ... and site layouts for cable installations + Use CAD software to produce high-quality technical drawings and blueprints (is...experience + 5+ years of related work experience + TS / SCI with Poly required + Proficiency in… more
    CACI International (10/25/25)
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  • Senior Platform Network Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with CI Poly - Current At Raytheon, the foundation of ... a safer, more secure world. The **Senior Platform Network Engineer ** will perform network engineering and design, creating engineering...90 days after starting in the role + Current TS / SCI with CI Poly security clearance is… more
    RTX Corporation (12/19/25)
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  • Satellite Systems Engineer

    CACI International (Aurora, CO)
    …Job Category: Intelligence Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage of Travel Required: ... End: 1/1/2099 **Opportunity:** Join CACI as a Satellite Systems Engineer and work in a high speed resource management...minimum 4 years of related work experience + Active TS / SCI with Polygraph + Strong communication skills,… more
    CACI International (12/18/25)
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  • Satellite Systems Engineer

    CACI International (Aurora, CO)
    …Job Category: Intelligence Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage of Travel Required: ... execution, and performance analysis and optimization **Qualifications:** _Required:_ Active TS / SCI with Polygraph -Strong communication skills, highly motivated,… more
    CACI International (12/07/25)
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  • Electro-Optical Model Based Systems…

    Lockheed Martin (Louisville, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI w/Poly **Other Important Information You Should Know** ... Lockheed Martin Space is seeking an **Electro\-Optical MBSE Systems Engineer ** to join our team in **Sunnyvale, CA or...* Must be able to obtain and maintain a TS / SCI w/Poly clearance\. **Desired Skills:** * Demonstrated… more
    Lockheed Martin (12/06/25)
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