• Test Engineer

    CACI International (Sarasota, FL)
    Test Engineer Job Category: Engineering Time Type: Full time...+ Must be a US citizen with an active Top Secret /SCI DoD Security clearance with polygraph. ... * **The Opportunity:** Join our team as a Test Engineer and play a pivotal role in ensuring the...role in ensuring the quality and compliance of complex hardware/ software systems. Your expertise will drive the development and… more
    CACI International (12/20/25)
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  • Senior Principal Engineer - Anti-Tamper…

    RTX Corporation (Tucson, AZ)
    …life cycle + Experience in solutions meeting robust SSE systems security requirements + DoD Top Secret clearance with current SSBI within last 5 years desired + ... as only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything we do is rooted… more
    RTX Corporation (12/16/25)
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  • Lead, Systems Engineer (RC-135 Raven)

    L3Harris (Nellis Air Force Base, NV)
    …an active Secret Clearance at the time of hire with the ability to obtain Top Secret with SCI Security Clearance and CI polygraph within the first year. + ... the interest of national security. Job Title: Lead, Systems Engineer (RC-135 Raven Simulations Systems) Job Code: 31299 Job...(DMO). + LINUX and UNIX-based operating systems. + Active Top Secret /SCI clearance. L3Harris Technologies is proud… more
    L3Harris (11/19/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …active Secret clearance at the time of hire with the ability to obtain a Top Secret with SCI. + Must be a US Citizen. Preferred Additional Skills: + Active ... 1st Shift 9/80 Job Description: The Sr. Specialist, Systems Engineer (SE) will be responsible for performing technical planning,... Top Secret with SCI. + CI Poly.… more
    L3Harris (11/01/25)
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  • Senior Mechanical Engineer - Structural…

    RTX Corporation (Richardson, TX)
    …only US citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Top Secret Collins Aerospace, an RTX company, is a leader in ... team is seeking a highly motivated Senior Level Mechanical Engineer that enjoys contributing to the analysis, design updates,...+ Active possession of an active US government issued Secret or Top Secret clearance.… more
    RTX Corporation (10/07/25)
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  • Cyber Network Engineer

    General Dynamics Information Technology (Fairfax, VA)
    …RQ210135 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** BI Full 6C (T4) **Job ... experience **US Citizenship Required:** Yes **Job Description:** **Cyber Network Security Engineer ** Advance your career while impacting our national security in… more
    General Dynamics Information Technology (12/04/25)
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  • Mechanical Engineer , Hardware Development…

    SpaceX (Hawthorne, CA)
    …engineering or a related technical discipline + Ability and willingness to obtain a Top Secret clearance + 1+ years of experience in technical project management ... Mechanical Engineer , Hardware Development (Starshield) Hawthorne, CA Apply SpaceX...candidate will have project experience in mechanical, electrical, and software engineering. RESPONSIBILITIES: + Own hardware from conceptual design… more
    SpaceX (11/12/25)
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  • Systems Engineer

    Leidos (Fort Meade, MD)
    …with an active DoD Secret security clearance with the ability to obtain a Top - Secret security clearance. Come break things (in a good way). Then build them ... and Values guide the way we do business. Leidos is seeking a Systems Engineer who will support a large, multi-year contract providing Timing and Synchronization to… more
    Leidos (12/19/25)
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  • Systems Engineer SATCOM SME

    Serco (Orlando, FL)
    **Position Description** Are you looking for a **System Engineer (SATCOM SME)** position where you can make an impact every day? Discover this great opportunity in ... Global SATCOM (WGS) Subject Matter Expert (SME) + Perform software baseline deployment, testing, and troubleshooting in a development/test...experience + An active US Department of Defense (DoD) Secret security clearance + A valid US Passport for… more
    Serco (12/12/25)
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  • Senior Systems Engineer

    BAE Systems (Hudson, NH)
    …languages. **Preferred Education, Experience, & Skills** 1. US Citizen with active Top Secret clearance 2. MS in Systems Engineering, Electrical Engineering, ... of EW systems across multiple business areas. As team engineer level contributor, you will be responsible for and...Education, Experience, & Skills** 1. US Citizen with active Secret clearance 2. BS in Systems Engineering, Electrical Engineering,… more
    BAE Systems (12/03/25)
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