• Senior Systems Engineer (MBSE) (Onsite)

    RTX Corporation (Aurora, CO)
    …start date.​ US citizenship is required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** TS / SCI with CI Poly - Current ... environment (Government, Military, SETA, and Contractor). + **An active and transferable TS / SCI CI Poly US government issued security clearance is required… more
    RTX Corporation (09/03/25)
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  • Principal System Administrator

    RTX Corporation (Aurora, CO)
    …start date.​ US citizenship is required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** TS / SCI with CI Poly - Current ... + Apply security hardening settings and work with our Information Assurance partners to maintain compliance with standards +...+ Must have active and transferable US government issued ** TS / SCI with poly security clearance **… more
    RTX Corporation (09/03/25)
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  • Principal Systems Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …date.​ US citizenship is required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** TS / SCI with Polygraph At Raytheon, ... (RFC) impact reviews and assessment experience. + **An active and transferable TS / SCI CI Poly US government issued security clearance is required prior to… more
    RTX Corporation (09/03/25)
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  • Class A CDL Driver

    Lockheed Martin (Littleton, CO)
    …, you must be a US Citizen for consideration\. ** Clearance Level:** TS / SCI w/Poly **Other Important Information You Should Know** **Expression of ... \(Flat Bed, Van, RGN, Specialty, etc\) \-Ability to obtain and maintain a TS / SCI w/ Polygraph security clearance **Desired Skills:** \-Active security … more
    Lockheed Martin (07/31/25)
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  • Principal Linux System Administrator

    RTX Corporation (Aurora, CO)
    …start date.​ US citizenship is required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** TS / SCI with CI Poly - Current ... years of prior relevant experience. + Must have active and transferable US government issued TS / SCI with poly security clearance is required prior to start… more
    RTX Corporation (07/19/25)
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  • Research Scientist Sr- RF Systems/Data Fusion

    Lockheed Martin (Boulder, CO)
    …, you must be a US Citizen for consideration\. ** Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of Interest:** ... radar systems and algorithms \- Ability to obtain a TS / SCI security clearance **Desired Skills:**...candidate's final work location\. Please note that the salary information is a general guideline only\. Lockheed Martin considers… more
    Lockheed Martin (07/12/25)
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  • System Administrator

    KBR (Colorado Springs, CO)
    …Standard Qualifications: Required: + Security Clearance : Must have an active US government Top Secret / SCI security clearance , which is something only ... academia, and partner nations. Key Responsibilities: + Manage cloud-based information systems, ensuring availability, performance, scalability, and security + Harden… more
    KBR (08/22/25)
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  • Senior System Engineer

    KBR (Colorado Springs, CO)
    …program risk areas and recommends/implements risk reduction measures Qualifications Required: + Active Top - Secret clearance with SCI eligibility + ... selected candidate's work location, knowledge, skills, abilities and/or experience, clearance level, contract affordability and in consideration of internal parity.… more
    KBR (08/13/25)
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  • Senior Software Engineer

    KBR (Colorado Springs, CO)
    …: Must currently possess an active US government Top Secret security clearance with the ability to obtain SCI SI/TK, which is something only a US ... obtain + Required Experience and Education: BS degree in Computer Science or Information Systems. Other degrees will be considered with relevant work experience. +… more
    KBR (08/09/25)
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  • Senior Space Control Expert

    KBR (Colorado Springs, CO)
    …they pertain to working, interfacing, and leading multi-disciplined team of engineers. + Active Top - Secret clearance with SCI eligibility Desired: + ... selected candidate's work location, knowledge, skills, abilities and/or experience, clearance level, contract affordability and in consideration of internal parity.… more
    KBR (07/25/25)
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