• Principal Subsystem Engineer

    RTX Corporation (Tucson, AZ)
    …Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is ... required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** DoD Clearance: Secret...pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date… more
    RTX Corporation (11/11/25)
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  • Senior Principal Mechanical Design…

    RTX Corporation (Tewksbury, MA)
    …and production support. Mechanical Engineering is searching for an experienced Senior Principal Design Engineer to work in the Radar Design Department. ... 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 (11/06/25)
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  • Principal Systems Engineer (Onsite)

    RTX Corporation (Largo, FL)
    …new designs are exciting and technically challenging. Collins Aerospace is hiring a ** Principal Systems Engineer ** to support programs for our US military and ... 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 (11/05/25)
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  • Principal Systems Engineer (Modeling…

    RTX Corporation (Tewksbury, MA)
    …world. Integrated Air & Missile Defense Systems (IAMDS) department is seeking a ** Principal Systems Engineer (Modeling & Simulation).** IAMDS leads all aspects ... 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 (10/23/25)
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  • P4 Principal Mechanical Engineer

    RTX Corporation (Tewksbury, MA)
    …integration, and production support. The ADGE department is looking for a full-time Principal Mechanical Engineer Lead to support Patriot Missile GEM-T major ... ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as...pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date… more
    RTX Corporation (10/22/25)
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  • Sr Principal Mechanical Engineer

    RTX Corporation (Tewksbury, MA)
    …and production support. The ADGE department is looking for a full-time Senior Principal Mechanical Engineer to support Patriot GEM-T Missile major components and ... ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as...pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date… more
    RTX Corporation (10/22/25)
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  • Principal Software Engineer - M365…

    Microsoft Corporation (Mountain View, CA)
    …for all aspects of engineering for this ecosystem of applications and services. As a ** Principal Software Engineer - M365 Copilot App** on the team, you will be ... responsible for designing, building and running the Copilot application across Windows, Mac, and Web platforms. You will lead architectural decisions and contribute… more
    Microsoft Corporation (12/19/25)
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  • Principal Software Development…

    Zscaler (San Jose, CA)
    …to harness speed and agility with a cloud-first strategy._ We are hiring a Principal Software Development Engineer to join our Central Authority team. You will ... cybersecurity. _Our Engineering team built the world's largest cloud security platform from the ground up, and we keep... protocols and services. Reporting to the Sr. Director, Application Engineering - Central Authority, you will: + Practice… more
    Zscaler (10/11/25)
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  • Principal Engineer Software

    Northrop Grumman (Aurora, CO)
    …contract award._** **Basic Qualifications:** + Must have anactiveU.S. Government DoD **Secret** security clearanceat time of application + Must be willing to ... our mission! Northrop Grumman Space Systems is seeking a Principal (level 3) _Software Engineer_ to join our team...while considering the impact greater impact on the software application as a whole. Develop tests that verify the… more
    Northrop Grumman (12/10/25)
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  • Principal DevSecOps Engineer

    RTX Corporation (Cedar Rapids, IA)
    …a team that's shaping the future of military communications. We're seeking a ** Principal DevSecOps Software Engineer ** to help build cutting-edge systems that ... 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 (12/09/25)
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