• FAST Labs - Senior Principal II Software…

    BAE Systems (Merrimack, NH)
    …support integration and test events. **Required Education, Experience, & Skills** + Active Top Secret Clearance + Bachelor's Degree in computer science, computer ... Research and Development Team in FAST Labs** The BAE Systems ' FAST Labs team conducts research and development in...**Join our team as a Senior Principal II Software Engineer in FAST Labs Engineering** As a key member… more
    BAE Systems (11/14/25)
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  • Computer Engineer

    Systems Technologies, Inc. (Hanover, MD)
    …years of experience + Senior: 10 years of experience SECURITY CLEARANCE . Active DoD Top Secret /SCI clearance required TRAVEL . Some travel may be required. Job ... Computer Engineer Location Hanover, MD Job Setting On-site Job...or design changes. + Provide guidelines for implementing secure systems to customers or installation teams. + Provide technical… more
    Systems Technologies, Inc. (12/02/25)
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  • Lead Network Engineer

    Cayuse Holdings (Washington, DC)
    …in IT network engineering for a total of fifteen (15) years of experience. + Active Top Secret /SCI security clearance. + Must be able to pass a background check. ... of the contract by the client.** The Lead Network Engineer will serve as the contractor's Subject Matter Expert...Design. + Bachelor's degree in Engineering, Computer Science, Information Systems . + In lieu of a bachelor's degree, the… more
    Cayuse Holdings (12/20/25)
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  • Customer Facing Python Engineer

    Arena Technical Resources, LLC (Washington, DC)
    Engineer (AI background) Job Location: Washington, DC - Onsite Eligibility/Clearance: Secret Clearancerequired, Top Secret Clearance preferred. This ... Customer Facing Python Engineer Location: Washington, DC, US Job ID: ATR...to meet customer objectives (50%). - Department of Defense Secret or Top Secret clearance… more
    Arena Technical Resources, LLC (10/21/25)
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  • Principal Product Support Engineer

    Sierra Nevada Company, LLC (Omaha, NE)
    …and personal computers + Communication and customer interface skills + Active/Current Top Secret US Clearance with SCI Eligibility + Comprehensive understanding ... more (https://www.sncorp.com/careers/total-rewards/) . **IMPORTANT NOTICE:** This position requires current/active Top Secret with SCI eligibility US Security… more
    Sierra Nevada Company, LLC (12/19/25)
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  • Senior Mechanical Engineer - Electronics…

    RTX Corporation (Richardson, TX)
    …only US citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Top Secret Job Description Collins Aerospace, an RTX company, is a ... a rapidly evolving global market. The Collins Aerospace Mission Systems Integrated Strategic Solutions (ISSE) engineering team is seeking...+ Active possession of an active US government issued Secret or Top Secret clearance.… more
    RTX Corporation (12/09/25)
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  • Software Engineer

    SOS International LLC (Fort Huachuca, AZ)
    Fort Huachuca, Arizona, USA Full-time FLSA Status: Exempt Clearance Requirement: Top Secret /SCI **Company Description** Founded in 1989, SOSi is among the ... special projects as required. **Qualifications** **Minimum Requirements** + An active in scope Top Secret /SCI clearance is required. + MA/MS +10 -OR- BA/BS +12… more
    SOS International LLC (12/09/25)
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  • Product Support Engineer III

    Sierra Nevada Company, LLC (Omaha, NE)
    …interface skills + Thorough understanding of system level maintenance of networks and communications systems + An active Top Secret with SCI eligibility US ... more (https://www.sncorp.com/careers/total-rewards/) . **IMPORTANT NOTICE:** This position requires current/active Top Secret with SCI eligibility US Security… more
    Sierra Nevada Company, LLC (11/27/25)
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  • RF Engineer (Colorado)

    Lockheed Martin (Littleton, CO)
    …RF components such as antennas, receivers, transmitters, etc\.\) Must have a Top Secret clearance; US Citizenship required **Desired Skills:** Experience with ... security clearance, you must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should Know** **Expression of… more
    Lockheed Martin (11/07/25)
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  • Lead EW Embedded Software Engineer

    RTX Corporation (Arlington, VA)
    …US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret RTX Corporation is an Aerospace and Defense company that ... provides advanced systems and services for commercial, military and government customers...and prototype demonstrations Qualifications you must have: + Active Top Secret clearance with SCI eligibility +… more
    RTX Corporation (11/05/25)
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