• Senior Principal Systems Engineer (Onsite)

    RTX Corporation (Aberdeen, MD)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...Aerospace, an RTX company, is seeking an experienced **Senior Principal Systems Engineer** to join the Precision Navigation (PNav)… more
    RTX Corporation (10/09/25)
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  • Principal Electromechanical Engineer

    Northrop Grumman (Aurora, CO)
    …experience with a completed PhD-STEM + **Must have an Active/Final TS/SCI DoD security clearance at the time of application , with eligibility/willingness to ... making history. Northrop Grumman Space Systems is seeking an ** Principal ** **Electr** **omechanical Engineer** to join our team. This...IAT II or IAT III Level + Must have Security + and be current with Continuing Education (CE) requirements:… more
    Northrop Grumman (09/20/25)
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  • Principal Electrical Engineer - Hardware…

    RTX Corporation (Cedar Rapids, IA)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...protected when it matters most. We are seeking a ** Principal Electrical Engineer** to lead the design and development… more
    RTX Corporation (09/10/25)
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  • Principal Software Engineer - Windows…

    Microsoft Corporation (Redmond, WA)
    …that values curiosity, craftsmanship, and a growth mindset. We're seeking a ** Principal Software Engineer** who's excited to explore new technologies, write elegant ... devices, platforms, and enterprise scenarios. + Customer-Centric Engineering: Leverage data -driven insights and direct customer feedback to continuously improve… more
    Microsoft Corporation (11/26/25)
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  • Senior Principal Engineer, Electrical…

    RTX Corporation (Windsor Locks, CT)
    …US citizens are authorized to access information under this program/contract. ** Security Clearance:** None/Not Required Joining Collins Aerospace isn't just about ... evolving global market. Collins Aerospace has an immediate need for Sr Principal Engineer, Electrical Component Engineer within the supply chain engineering team.… more
    RTX Corporation (11/27/25)
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  • Principal Investigator/Lead Research…

    GovCIO (Albany, NY)
    …designs, and demonstrates software/hardware prototypes that process, move, and store data globally with high availability, redundancy, and security , including ... **Overview** GovCIO is currently hiring for a Principal Investigator/ Research Scientist. This position will be located in Rome,NY and will an onsite position.… more
    GovCIO (10/24/25)
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  • Principal Thermal Process Manufacturing…

    RTX Corporation (Midland, GA)
    …only US citizens are authorized to access information under this program/contract. ** Security Clearance:** None/Not Required Pratt & Whitney is working to once again ... producing disks for the aerospace propulsion market, is looking for a ** Principal Thermal Process Manufacturing Engineer** to support the organization. + Evaluate… more
    RTX Corporation (10/04/25)
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  • Principal Specialist, Materials, Planning…

    RTX Corporation (Cedar Rapids, IA)
    …"U.S. Person" go here. https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-120/subpart-C/section-120.62 ** Security Clearance:** None/Not Required We ... are currently hiring a Principal Specialist, Materials, Planning, SIOP position to support our...and demand. + Identifies appropriate demand streams and establishes data relationship linkages. + Works with product development leaders… more
    RTX Corporation (11/26/25)
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  • Principal Electrical Engineer - Signal…

    RTX Corporation (Marlborough, MA)
    …citizens are authorized to access information under this program/contract. ** Security Clearance:** None/Not Required **Raytheon Company, Managed by Collins ... to share information and aid in decision-making. As a ** Principal Electrical Engineer** , you will join our **Hardware...design improvements and helps develop operational plans to gather data needed for system enhancements. This position is both… more
    RTX Corporation (11/13/25)
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  • Senior/ Principal R&D Computer Science…

    Sandia National Laboratories (Albuquerque, NM)
    …design intent, computer-aided design (CAD) models, manufacturing information, and inspection data across Nuclear Security Enterprise (NSE) systems. We build ... Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge… more
    Sandia National Laboratories (11/26/25)
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