• RF Engineer , Senior (Level III)…

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI w/Poly **Other Important Information You Should Know** ... for this position, applicants must possess an active security clearance level of: ** TS / SCI with Polygraph** * For long term employment on this program,… more
    Lockheed Martin (07/26/25)
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  • Software Engineer TS / SCI

    Leidos (Aurora, CO)
    …activities as a member of an agile development team. You must have an active/current TS / SCI Polygraph up front (this is firm). The development here includes: + ... has a new and exciting opportunity for a **Software Engineer ** in our **National Security Sector's (NSS) Cyber &...**Security Clearance requirement:** + Candidates must possess an active ** TS / SCI with Polygraph** up frontto be considered… more
    Leidos (05/28/25)
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  • Data Center Operations Engineer - TS

    General Dynamics Information Technology (Aurora, CO)
    …or network related issues using Linux-based tools + **Security Clearance Level** : TS / SCI with active polygraph + **Location** : On Customer Site - Aurora, ... your opportunity to make a personal impact as a Data Center Operations Engineer supporting customer activities. GDIT is your place to make meaningful contributions… more
    General Dynamics Information Technology (07/23/25)
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  • Sr. Staff Systems Engineer ( TS

    Northrop Grumman (Aurora, CO)
    …a PhD in a STEM discipline with 10 years of relevant experience. + **Active TS / SCI clearance is required at time of application.** + General knowledge of ground ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time **Description** At...Space Systems (NGSP) is seeking a **Sr.** **Staff Systems** ** Engineer ** to support a program out of our **Aurora,… more
    Northrop Grumman (07/18/25)
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  • Principal Systems Engineer - Active…

    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 ... and test development teams + Experience documenting system interfaces, detailing network routing information , and developing system architecture artifacts +… more
    RTX Corporation (07/30/25)
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  • Sr. Software Engineer -Automated Test…

    Leidos (Aurora, CO)
    …quarterly PI Planning sessions in MD. + **Clearance Required: Must have TS / SCI with Polygraph up front.** **Preferred Qualifications:** + Experience working ... has a new and exciting opportunity for an **Automated Test Framework Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area… more
    Leidos (08/08/25)
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  • Platform Integration Engineer - TS

    Leidos (Aurora, CO)
    …experience maybe considered in lieu of a degree. + US Citizen with an active TS / SCI security clearance with Poly + Proven expertise in developing and deploying ... **Description** Leidos is seeking a highly adaptable **Platform Integration Engineer ** to support mission-critical solutions across various laboratory environments.… more
    Leidos (08/08/25)
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  • Senior Full Stack Software Engineer

    Leidos (Aurora, CO)
    …programs + Bachelor's degree in Computer Science or related discipline + TS / SCI clearance with Polygraph + Familiarity with front-end frameworks (React, ... has a new and exciting opportunity for a **Senior Full Stack Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area (CABA)**… more
    Leidos (07/31/25)
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  • Principal Software Engineer - 25k Sign On…

    Leidos (Aurora, CO)
    …from an accredited college or university. + **Clearance Required: Must have TS / SCI with Polygraph** **Preferred Qualifications:** + Java development experience + ... has a new and exciting opportunity for a Software Engineer in our **National Security Sector's (NSS) Cyber &...team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling,… more
    Leidos (07/25/25)
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  • Staff Systems Engineer - TS

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of ... must have extensive working knowledge of Windows, System Administration, Hardware, Network and LAN support\. Must have extensive knowledge of OS installation… more
    Lockheed Martin (07/26/25)
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