• Principal Systems Integration &Test…

    RTX Corporation (Aurora, CO)
    …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:** TS/SCI - Current...world. + We have an exciting opportunity for a ** Principal ** **Systems Integration and Test Engineer - Automated Testing**… more
    RTX Corporation (11/06/25)
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  • Principal Software Engineer (Onsite)

    RTX Corporation (Portsmouth, RI)
    …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...safer, more secure world. We are seeking a skilled Principal Embedded Software Engineer to join our Radar Digital… more
    RTX Corporation (10/29/25)
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  • Principal Specialist, EH&S

    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...this may be the perfect job! As an EH&S Principal Specialist with our Tucson, AZ EH&S team, you'll… more
    RTX Corporation (10/28/25)
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  • Principal Software Engineer - Embedded…

    RTX Corporation (Fort Wayne, IN)
    …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...military communications are both secure and trustworthy. As a ** Principal Software Engineer,** you will play a crucial role… more
    RTX Corporation (10/17/25)
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  • Principal RF Signal and Sensor Modeling…

    RTX Corporation (Tucson, AZ)
    …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...team environment, and are eager to learn. As a Principal RF Signal and Sensor Modeling Engineer, you will… more
    RTX Corporation (10/01/25)
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  • Sr. Principal Cybersecurity Analyst

    Northrop Grumman (Linthicum Heights, MD)
    …activities and technical or coordination activity and prepare the System Security Plans and update the Plan of Actions and Milestones POA&M. + Periodically ... Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and secure technological… more
    Northrop Grumman (11/12/25)
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  • Principal /Sr Principal Engineer…

    Northrop Grumman (Colorado Springs, CO)
    …related experience + Applicants must possess a current, active in-scope DoD-issued **Secret** security clearance at the time of application , which is required to ... assessment in accordance with MIL-STD-1472G/H design guidelines. **Basic Qualifications:** + Principal Human Factors Engineer: Bachelor's degree and 5 years of… more
    Northrop Grumman (10/16/25)
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  • Principal or Senior Principal HPC…

    Northrop Grumman (Redondo Beach, CA)
    …test, installation, operation, maintenance, and disposal. + Perform HPC technical planning, system integration, verification and validation, cost and risk ... as Bash and Csh. + A current active US Government in-scope DoD Top Secret security clearance is required to start, with the ability to obtain and maintain clearance… more
    Northrop Grumman (09/13/25)
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  • Principal Coatings Process Engineer…

    RTX Corporation (Middletown, CT)
    …only US citizens are authorized to access information under this program/contract. ** Security Clearance:** None/Not Required Pratt & Whitney is working to once again ... up. Are you ready to go beyond? **What You Will Do:** The ** Principal Coatings Process Engineer** will provide support to manufacturing operations and drive process… more
    RTX Corporation (09/09/25)
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  • Principal Software Development Engineer (C…

    Zscaler (San Jose, CA)
    …experience for enterprise users. As the operator of the world's largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, ... Zscaler. _Our Engineering team built the world's largest cloud security platform from the ground up, and we keep...agility with a cloud-first strategy._ We are hiring a Principal Software Development Engineer to join our Central Authority… more
    Zscaler (10/11/25)
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