• Senior Principal Systems Engineer

    Northrop Grumman (Baltimore, MD)
    …Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and software-secure technology to ... Grumman Mission Systems has an opening for a Sr. Principal Systems Engineer, with a focus in **Target Tracking**...*This position requires up to **100% on-site** work due security constraints and an ability to pass an enhanced… more
    Northrop Grumman (12/19/25)
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  • Principal Systems Engineer

    Northrop Grumman (Baltimore, MD)
    Principal systems engineers develop parametric representations, visualizations and data driven analysis to support sensor requirements definition and use case ... 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 (12/19/25)
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  • Principal Systems Engineer - Control…

    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...ground system? We have an exciting opportunity for a ** Principal Systems Engineer - Control Account Manager** to support… more
    RTX Corporation (12/11/25)
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  • Sr. Principal Systems Engineer

    Northrop Grumman (Chandler, AZ)
    …history, they're making history. Northrop Grumman Space Systems is seeking a Sr. Principal Systems Engineer to support the Test & Evaluation (T&E) Integrated Product ... hardware is ready for test execution and post test data certification. This position is 100% on site in...**Basic Qualifications:** + Bachelor's degree in a STEM discipline ( Science , Technology, Engineering or Math) with 8 years of… more
    Northrop Grumman (11/21/25)
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  • Principal Software Engineer - (Sase)

    Palo Alto Networks (Santa Clara, CA)
    …(Secure Access Service Edge) group is looking for an accomplished Principal Software Engineer with networking background with extensive development experience to ... + Strong grasp on designing complex systems and on data structures and algorithms + Experience of using cloud...etc + Network infrastructure, Firewall, Load balancing concepts and Security implementations is a plus + Experience in telemetry… more
    Palo Alto Networks (11/12/25)
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  • Principal Product Manager

    Zscaler (San Jose, CA)
    …Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. ... and help shape the future of cybersecurity. **Role** We are looking for a Principal Product Manager to join our Product Management team. This is a hybrid role… more
    Zscaler (01/09/26)
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  • Senior Principal Systems Engineer - Air…

    RTX Corporation (Cedar Rapids, IA)
    …as only US citizens are eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret **Senior Principal Systems Engineer** **- Air ... You Must Have:** + Typically requires a degree in Science , Technology, Engineering or Mathematics (STEM) and minimum 10...a US Department of Defense (DoD) Secret or above security clearance + Experience with the systems development process,… more
    RTX Corporation (01/08/26)
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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 (01/07/26)
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  • Principal Systems Engineer (Onsite)

    RTX Corporation (Largo, FL)
    …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:** Secret - Current **Raytheon Company, Managed by Collins Aerospace**… more
    RTX Corporation (12/30/25)
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  • Principal SWE, Windows Network Filter…

    Zscaler (San Jose, CA)
    …Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. ... shape the future of cybersecurity. Our Engineering team built the world's largest cloud security platform from the ground up, and we keep building. With more than… more
    Zscaler (12/27/25)
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