• Principal Test Engineer

    Mercury Systems (Phoenix, AZ)
    Req. Number 25-504 Job Description Mercury Systems is seeking a Principal Test Engineer to lead efforts in developing and executing server system tests for ... applications. This role plays a pivotal part in ensuring product reliability, performance, and security across the...part in ensuring product reliability, performance, and security across the full engineering lifecycle from concept to… more
    Mercury Systems (12/12/25)
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  • Principal Systems Engineer

    RTX Corporation (Fulton, MD)
    …Solipsys is a wholly owned subsidiary of Collins Aerospace/RTX and is currently seeking a Principal Systems Engineer to join our team in Fulton, MD who is ... ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as...You Will Do** + Serve as an Onsite Systems Engineer and Command and Control (C2) Operations Subject Matter… more
    RTX Corporation (11/19/25)
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  • Principal Software Engineer

    RTX Corporation (Fort Wayne, IN)
    …we ensure that our military communications are both secure and trustworthy. As a ** Principal Software Engineer ,** you will play a crucial role in leading the ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (10/17/25)
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  • Principal Engineer , Systems…

    RTX Corporation (Melbourne, FL)
    …Rockwell Collins Inc. d/b/a Collins Aerospace has an opening for a Principal Engineer , Systems Engineering in Melbourne, FL. National and international ... + Perform analysis at all levels of the total system product including concept, design, fabrication, modeling, test, installation, operation, maintenance and… more
    RTX Corporation (12/09/25)
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  • Principal Software Engineer

    Microsoft Corporation (Redmond, WA)
    **Overview** We are seeking a ** Principal Software Engineer ** to join the ISCE Security Development Team. In this role, you will work on all service aspects ... of high-throughput, multi-tenant services, ensuring robust security fundamentals across diverse cloud environments. Sovereign Cloud Security secures Microsoft's… more
    Microsoft Corporation (12/19/25)
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  • Test Engineer / Principal Test…

    Northrop Grumman (Newport News, VA)
    …in lieu of degree + All other basic qualifications **Basic Qualifications for a Principal Test Engineer ** + Bachelors in science with 5 years' experience, ... only part of history, they're making history. As one of the largest global security companies in the world, Northrop Grumman is proud to help our nation's military… more
    Northrop Grumman (12/17/25)
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  • Principal Embedded Software Engineer

    RTX Corporation (Richardson, TX)
    …and safeguarding the lives of those who protect us. As our next Principal Embedded Software Engineer , you'll immerse yourself in Strategic Nuclear Deterrence, ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (11/01/25)
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  • Principal Quality Engineer

    Northrop Grumman (Annapolis, MD)
    …Grumman Mission Systems, located in **Annapolis, MD** has an immediate need for a ** Principal Quality Engineer .** **What You'll Get to Do:** The Quality ... Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and software-secure technology to… more
    Northrop Grumman (12/18/25)
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  • Senior Principal Cyber Systems…

    Northrop Grumman (Melbourne, FL)
    …of history, they're making history. Northrop Grumman Aeronautics Systems is seeking a **Senior Principal Cyber Systems Engineer (Level 4)** to join our team of ... located in **Melbourne, FL** . As a Cyber Systems Engineer , you will be part of a team encompassing...will be part of a team encompassing the full product lifecycle of a software development and test environment… more
    Northrop Grumman (12/10/25)
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  • Field Engineer Level 4 (Sr Principal

    Northrop Grumman (Jacksonville, FL)
    …our mission! We are looking for you to join our team as a **F** **ield Engineer Level 4 (Sr Principal )** based out of **Mayport, FL** with some CONUS/OCONUS ... Mission Systems is a trusted provider of mission-enabling solutions for global security . Our Engineering and Sciences (E&S) organization pushes the boundaries of… more
    Northrop Grumman (11/25/25)
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