• Principal Systems Engineer - Reliability…

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …Action Systems (FRACAS) + **The ability to obtain and maintain a Top Secret US Security Clearance is required** ​ **Qualifications We Prefer:** + ... This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this position needs an… more
    Sierra Nevada Company, LLC (07/18/25)
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  • Senior Platform DevOps Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …US citizenship is required, as only US citizens are eligible for a security clearance ​ ** Security Clearance :** TS /SCI with Polygraph At Raytheon, the ... languages (Eg Python, Java, Ruby, Bash, C++, C#, Go) + Current TS /SCI with CI Poly security clearance is required on day 1. US citizenship is… more
    RTX Corporation (08/22/25)
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  • Platform Network Engineer II (Onsite)

    RTX Corporation (Aurora, CO)
    …US citizenship is required, as only US citizens are eligible for a security clearance ​ ** Security Clearance :** TS /SCI with Polygraph At Raytheon, the ... Security + within 90 days after starting in the role + Current TS /SCI with CI Poly security clearance is required day 1. US citizenship is required, as… more
    RTX Corporation (08/16/25)
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  • Senior. Platform Developer Onsite

    RTX Corporation (Aurora, CO)
    …US citizenship is required, as only US citizens are eligible for a security clearance ​ ** Security Clearance :** TS /SCI with Polygraph At Raytheon, the ... CompTIA Security + or ability to obtain + Active and current TS /SCI / CI Poly security clearance is required day 1. US citizenship is required, as only… more
    RTX Corporation (07/23/25)
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  • Principal Platform Cloud Architect (Onsite)

    RTX Corporation (Aurora, CO)
    …citizenship is required, as only US citizens are eligible for a security clearance ​ ** Security Clearance :** TS /SCI without Polygraph At Raytheon, the ... Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start...code, and other DevOps principles + Active and transferable TS /SCI clearance is required day 1. US… more
    RTX Corporation (06/13/25)
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  • Associate Director, Deputy Program Management

    RTX Corporation (Aurora, CO)
    …citizenship is required, as only US citizens are eligible for a security clearance ​ ** Security Clearance :** TS /SCI without Polygraph At Raytheon, the ... + An active and transferable TS /SCI level US government issued security clearance isrequiredpriorto start date. US citizenship isrequired, as only US… more
    RTX Corporation (08/19/25)
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  • Principal / Sr. Principal Software Engineer…

    Northrop Grumman (Boulder, CO)
    …All applicants must have the ability to obtain and maintain a Top Secret /SCI ( TS /SCI) security clearance . **Preferred Qualifications:** + A current ... active in-scope US Government DoD issued Top Secret /SCI ( TS /SCI) security clearance + OO design pattern and modern data structure experience +… more
    Northrop Grumman (08/13/25)
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  • Sentinel - Principal/Sr Principal Contract…

    Northrop Grumman (Colorado Springs, CO)
    …Special Program Access (SAP) **Preferred Qualifications** + Active DoD Secret or Top - Secret security clearance + Extensive experience in construction ... processes and procedures + Active Federal US Government or DoD Secret or Top - Secret security clearance + Master's degree, law degree or paralegal… more
    Northrop Grumman (07/29/25)
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  • Contracts Administrator - Level 3 or 4

    Northrop Grumman (Aurora, CO)
    …from the National Contracts Management Association (NCMA) + An active US Government DoD Top Secret security clearance , with Sensitive Compartmented ... the time, as needed, per business need + Must have an active US Government DoD Top - Secret security clearance that has been maintained within the past two… more
    Northrop Grumman (07/08/25)
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  • Principal Engineer Systems - Network…

    Northrop Grumman (Colorado Springs, CO)
    … at the time of application, which is required to start with the ability to obtain Top Secret security clearance + A DoD 8140 certification at **IAT ... and **ESXi** servers. **Preferred Qualifications:** + A current, active in-scope DoD-issued ** Top Secret ** security clearance at the time of application… more
    Northrop Grumman (08/27/25)
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