• Environmental Biologists - Environmental Services…

    ICF (Denver, CO)
    …to provide needed reasonable accommodations. Read more about workplace discrimination righ ts or our benefit offerings which are included in the Transparency in ... (Benefits) Coverage Act. **Candidate AI Usage Policy** At ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to… more
    ICF (08/08/25)
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  • Senior Business Systems Analyst and Developer

    GovCIO (Denver, CO)
    …Tech Services Group. This position is fully remote. The Logistics Tech Services (L&V TS ) group is positioned to provide the following support to the USPS business ... hear that meaningful work and a collaborative team environment are two of the top reasons our employees enjoy working here. In addition, our employees have access to… more
    GovCIO (08/08/25)
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  • Senior Systems Engineer, Air & Space Defense…

    RTX Corporation (Aurora, CO)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI without Polygraph At Raytheon, the foundation of everything we do is rooted ... in our values and a higher calling to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of… more
    RTX Corporation (08/08/25)
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  • Software Engineer

    Lockheed Martin (Boulder, CO)
    …device driver development and low\-level programming * Ability to obtain a secret government clearance **Desired Skills:** * Experience with embedded Linux and ... clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS /SCI **Other Important Information You Should Know** **Expression of Interest:** By… more
    Lockheed Martin (08/08/25)
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  • Property Specialist, Field Engineering

    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 is rooted ... in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of… more
    RTX Corporation (08/08/25)
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  • Senior Software Developer

    GovCIO (Denver, CO)
    …Tech Services Group. This position is fully remote. The Logistics Tech Services (L&V TS ) group is positioned to provide the following support to the USPS business ... hear that meaningful work and a collaborative team environment are two of the top reasons our employees enjoy working here. In addition, our employees have access to… more
    GovCIO (08/08/25)
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  • Engineering Aide / Project Aide - Entry Level…

    Lockheed Martin (Aurora, CO)
    …you must be a US Citizen for consideration\. **Clearance Level:** TS /SCI w/Poly **Other Important Information You Should Know** **Expression of Interest:** ... By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match\. Should this match be identified you may be contacted for this… more
    Lockheed Martin (08/08/25)
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  • Linux System Administrator

    ManTech (Aurora, CO)
    …Atlassian tool suite (JIRA, Confluence) **Security Clearance Requirements** + Current/active TS /SCI with Polygraph, **Physical Requirements** + Must be able to ... remain in a stationary position for up to 50% of the time + Frequently operates computers and standard office productivity tools + Must be able to effectively communicate with co-workers, customers, and leadership-may include delivering presentations +… more
    ManTech (08/08/25)
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  • Data Center Security Monitor

    Amentum (Centennial, CO)
    …after hours while still serving. Basic Qualifications: + Must possess a **current** TS /SCI clearance with Polygraph + High School diploma or equivalent + Ability to ... walk and stand for a minimum of 8-12 hours per day + Possess the visual acuity to observe the activities of other individuals from a moderate distance + This position requires visual observation of personnel working or visiting customer facilities + Must… more
    Amentum (08/08/25)
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  • Linux System Administrator

    ManTech (Aurora, CO)
    …within integrated software development environments **Security Clearance Requirements** + Current TS /SCI with Polygraph **Physical Requirements** + Must be able to ... remain in a stationary position for up to 50% of the time + Frequently operates computers and standard office productivity tools + Must be able to effectively communicate with co-workers, customers, and leadership-may include delivering presentations +… more
    ManTech (08/08/25)
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