• Mission Systems Engineer - Clearance…

    Lockheed Martin (Littleton, CO)
    …to customer's needs \- Ability to effectively communicate with peers and customers \- Active Top Secret security clearance with the ability to obtain and ... security clearance , you must be a US Citizen for consideration\. ** Clearance Level:** TS /SCI w/Poly **Other Important Information You Should Know**… more
    Lockheed Martin (10/29/25)
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  • Systems Engineer - Interim Clearance…

    Lockheed Martin (Littleton, CO)
    …government security clearance , you must be a US Citizen for consideration\. ** Clearance Level:** Top Secret **Other Important Information You Should ... **Description:** **WHAT WE'RE DOING** At Lockheed Martin, we engineer innovative solutions to deliver resilient systems, products,...Ability to obtain a DoD Secret Security Clearance and the ability to obtain a TS… more
    Lockheed Martin (11/01/25)
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  • RF Engineer , Senior Staff (Level V)…

    Lockheed Martin (Littleton, CO)
    …government security clearance , you must be a US Citizen for consideration\. ** Clearance Level:** Top Secret **Other Important Information You Should ... Qualified applicants must possess at minimum a currently Active Secret security clearance to be considered\. *...be required to obtain, and maintain, a government issued Top Secret for long term employment on… more
    Lockheed Martin (11/09/25)
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  • Principal Systems Engineer…

    Northrop Grumman (Aurora, CO)
    …relevant experience; 3 years with a Masters; 0 years with a PhD. + **Current DoD Top Secret clearance with SCI eligibility at time of application, and ... Grumman Space Systems (NGSP) is seeking a **Principal Systems Engineer ( Software Integrator)** / **Sr. Principal Systems...Masters; 3 years with a PhD. + **Current DoD Top Secret clearance with SCI… more
    Northrop Grumman (11/22/25)
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  • Software Engineer - Level 4…

    Northrop Grumman (Colorado Springs, CO)
    …which is required to start with the ability to obtain and maintain a Top Secret - TS /SCI/SAP security clearance + Ability and willingness to travel up-to ... has an exciting career opportunity for an Sr Principal Software Engineer - Level 4 - M&S...Qualifications:** + Applicants holding a current, active in-scope DoD-issued ** Top Secret with SCI/SAP** security clearance… more
    Northrop Grumman (11/08/25)
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  • Principal Software Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    … clearance is required prior to start date. An active and transferable US government issued Top Secret security clearance that can be crossed over to a ... as only US citizens are eligible for a security clearance ​ **Security Clearance :** TS /SCI -...secure processing, and data management. Raytheon is currently hiring Software Engineers to upgrade an advanced hardware/ software … more
    RTX Corporation (10/09/25)
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  • Staff Systems Engineer ( 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, ... Grumman Space Systems (NGSP) is seeking a **Staff Systems Engineer ** to support a program out of our **Aurora,...experience with a PhD. + Must have an active Top Secret /SCI clearance at the… more
    Northrop Grumman (11/20/25)
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  • Sr. Specialist, Software Engineer…

    L3Harris (Colorado Springs, CO)
    …lieu of a degree, minimum of 10 years of prior related experience. + Top Secret or TS /SCI Clearance + Experience in VMWare and Hyper-V, and familiar with ... the interest of national security. Job Title: Sr. Specialist, Software Engineer / Virtualization Engineer ...troubleshooting and support of new system fielding. + Maintain Top Secret Clearance which requires… more
    L3Harris (09/12/25)
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  • Software Engineer Level 5

    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, ... making history. Northrop Grumman's Space Sector is seeking a Software Engineer - Level 5 to join...strong background in JAVA development, and hold an active Top Secret /SCI security clearance . You… more
    Northrop Grumman (11/12/25)
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  • Cyber Software Test Engineer

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