• Senior Principal Systems Engineer - Principal…

    RTX Corporation (Cedar Rapids, IA)
    …Computer Engineering, Electrical Engineering or related degree + Currently holds a DoD Top Secret security clearance + Extensive experience writing software ... is required, as only US citizens are eligible for a security clearance ** Security Clearance:** DoD Clearance: TS / SCI Sr Principal Systems Engineer -… more
    RTX Corporation (11/18/25)
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  • Sr. Hardware Development Engineer, Bespoke…

    Amazon (Arlington, VA)
    …requires that, after start, the selected candidate obtain and maintain an active TS / SCI security clearance with polygraph or commensurate clearance for ... board layout - Experience with DFx (Design for cost, test , manufacturing) - Experience with FPGA SoC hardware integration,...(PCIe, DDR, SERDES, etc.) - Current, active US Government Security Clearance of Top Secret … more
    Amazon (11/05/25)
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  • Sr. Scientist, Systems Engineer

    L3Harris (Greenville, TX)
    …documents. + Travel up to 10% of the time. + Ability to obtain and maintain a Top Secret with SCI . Clearance. + Other duties as assigned by Supervisor. ... sea and cyber domains in the interest of national security . Job Title: Sr. Scientist, Systems Engineer Job Code:...be a US Citizen. Preferred Additional Skills: + Active Top Secret with SCI . #LI-AH1… more
    L3Harris (11/01/25)
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  • GCCS Systems Administrator

    Paragon Cyber Solutions (Colorado Springs, CO)
    …(USSTRATCOM) and US Air Force Space Command (AFSPC) missions. Clearance: Top Secret Security Clearance with SCI Eligibility Travel Required: Yes (up ... new operators. + Utilizing engineering skills to research, develop, test , and document solutions for Research & Test...be able to maintain a DoD Top Secret Security Clearance with SCI … more
    Paragon Cyber Solutions (10/11/25)
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  • Principal Engineer Mission Architect

    Northrop Grumman (Colorado Springs, CO)
    …PhD with 1 year of professional experience + Requires an active US Government DoD Top - Secret security clearance at time of application, current and within ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of...off. In this job, you will: + Support On-Orbit Test activities including mission planning, scenario development, dry-run/rehearsal and… more
    Northrop Grumman (12/18/25)
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  • Principal Full Stack Software Developer

    Northrop Grumman (Hollywood, MD)
    …Code (IaC) development + Experience with Air Force mission planning + CompTIA Security + Certification + Active Top - Secret Clearance (adjudicated within the ... Clearance (adjudicated within the last 5 years), with ability to obtain a Top - Secret clearance and Special Access Program (SAP) clearances + Experience… more
    Northrop Grumman (11/12/25)
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  • Principal SME Test and Evaluation (T&E)

    Alaka'ina Foundation Family of Companies (Fort Belvoir, VA)
    …+ Must be a US Citizen (Born or Naturalized) + Must have Active TS / SCI Clearance ​The Alaka`ina Foundation Family of Companies (FOCs) is a fast-growing ... Principal SME Test and Evaluation (T&E) Location VA - Fort...support product selection, architecture, system design, engineering, intelligence systems, security and other technical, operational, and analytical disciplines to… more
    Alaka'ina Foundation Family of Companies (12/19/25)
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  • Senior Software Test Engineer

    BigBear.ai (Annapolis Junction, MD)
    …standards of reliability and performance. What you need to have + Active TS / SCI with Polygraph Required to support this mission-critical program. + Minimum ... Overview BigBear.ai is seeking a Test Engineer to play a pivotal role in...in fast-paced environments, and want to contribute to national security , we want to hear from you. What you… more
    BigBear.ai (11/20/25)
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  • Test Engineer/ QA Controller

    SAIC (Washington, DC)
    …and implementing automation testing specific to MARS needs **Qualifications** + Active TS / SCI with Polygraph + One of the following certifications: CND, ... **Description** SAIC is seeking ** Test Engineers/ QA Controllers** to join the Machine-assisted...CompTIA Network+, Certified Ethical Hacker (CEH), Cloud+, PenTest+, CompTIA Security +, Systems Security Certified Practitioner (SSCP), or… more
    SAIC (10/08/25)
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  • Associate Full Stack Software Engineer…

    Lockheed Martin (King Of Prussia, PA)
    … clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of ... clearance to start with the ability to obtain a Top Secret clearance \- Must be a...a US Citizen; this position will require a government security clearance\. This position is located at a facility… more
    Lockheed Martin (12/18/25)
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