• TYLin (Ontario, CA)
    …finding more sustainable solutions. **Job Summary** TYLin is looking to hire a Principal Construction Engineer for our Ontario, CA office. **Responsibilities & ... Qualifications** **Qualifications:** + Establish project filing system in accordance with client requirements and manage electronic filing system. + Log and manage project submittals, RFI's and correspondence. + Create meeting agendas and minutes; distribute… more
    DirectEmployers Association (09/19/25)
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  • Verdantas (Rancho Cucamonga, CA)
    …**civil infrastructure** , and **geotechnical design** , reporting directly to the ** Principal Engineer ** . + Lead engineering analyses using advanced ... communities?** We are seeking a highly motivated and technically proficient **Senior Engineer or Project Manager** to support and lead solid waste engineering… more
    DirectEmployers Association (11/19/25)
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  • Principal Engineer

    Curtiss-Wright Corporation (Brea, CA)
    ** Principal Engineer **SIGN ON BONUS **_Join the WRIGHT team!_** Curtiss-Wright is a global leader in providing valves, pumps, actuators, pipe restraints, ... 401k retirement, tuition reimbursement, and vacations/holidays. **The Opportunity |** **Principle Engineer ** **Location: Brea, CA** Step into a challenging role and… more
    Curtiss-Wright Corporation (10/18/25)
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  • Apartments.com - Principal Software…

    CoStar Realty Information, Inc. (Orange County, CA)
    Apartments.com - Principal Software Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential ... our customers. Learn more about Apartments.com (https://www.apartments.com/grow/about-us) . As a ** Principal Software Engineer ** , you will proactively lead the… more
    CoStar Realty Information, Inc. (10/01/25)
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  • Senior Principal SEIT Engineer

    RTX Corporation (Anaheim, CA)
    …Managed by Collins Aerospace **Applied Signal Technology (AST** ) is seeking a **Senior Principal SEIT Engineer ** who strives for excellence and have a passion ... while embracing integrity, innovation and work-life balance. The **Senior Principal SEIT Engineer ** will have a strong background in algorithm development and… more
    RTX Corporation (10/09/25)
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  • Senior Principal Software Engineer

    RTX Corporation (Anaheim, CA)
    …by Collins Aerospace **Applied Signal Technology (AST** ) is seeking a **Senior Principal Software Engineer ** with deep expertise in Global Navigation Satellite ... and work-life balance. We are seeking an innovative and mission-driven **Senior Principal Software Engineer ** with deep expertise in Navigation Warfare (NAVWAR),… more
    RTX Corporation (10/07/25)
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  • Principal Electrical Engineer - EMC

    Medtronic (Northridge, CA)
    …Day in the Life** In this exciting and challenging role as a Principal Electrical Engineer , your responsibilities will include Designing, developing, and ... We have the talent, diverse perspectives, and guts to engineer the extraordinary. Learn more about our business, mission,...We have the talent, diverse perspectives, and guts to engineer the extraordinary. **We change lives** . Each team… more
    Medtronic (11/08/25)
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  • Principal Geotechnical Engineer

    AECOM (Orange, CA)
    …Dams Department in Orange, California office has an immediate need for an experienced Principal Geotechnical Engineer with focus in Dams/Levees to take on a ... or demonstrated equivalency of experience and or education + Professional Engineer 's (PE) license + Driver's License **Preferred Qualifications** + Master's degree… more
    AECOM (10/09/25)
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  • Principal R&D Engineer

    Envista Holdings Corporation (Pomona, CA)
    **Job Description:** We're seeking a visionary ** Principal R&D Engineer ** to lead the design and development of cutting-edge dental devices-from ... electromechanical systems and endodontic tools to curing lights and restorative delivery systems. In this role, you'll drive projects from concept through commercialization, champion engineering excellence, and collaborate cross-functionally to deliver… more
    Envista Holdings Corporation (09/06/25)
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  • Principal Software Engineer

    The Walt Disney Company (Anaheim, CA)
    …well as other initiatives including the MyDisneyExperience app and Hey, Disney! This Principal Software Engineer will sit in the Disneyland Ticketing Technology ... organization within Technology & Digital for Disney Experiences - directly leading the development efforts for our group. **What You'll Do:** + Own the analysis, design, delivery, and modifications of software improvements and/or new products used in local,… more
    The Walt Disney Company (10/08/25)
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  • Principal Software Systems Engineer

    Medtronic (Northridge, CA)
    …can blend innovation with rigor - and we are seeking such a leader. The Principal Software Systems Engineer will be at the forefront of advancing CareLink ... We have the talent, diverse perspectives, and guts to engineer the extraordinary. Learn more about our business, mission,...We have the talent, diverse perspectives, and guts to engineer the extraordinary. **We change lives** . Each team… more
    Medtronic (11/22/25)
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  • Principal Mechanical Design Engineer

    Medtronic (Northridge, CA)
    …innovation in a more connected, compassionate world. **A Day in the Life** As a Principal Mechanical Design Engineer , you will be a technical leader within our ... We have the talent, diverse perspectives, and guts to engineer the extraordinary. Learn more about our business, mission,...We have the talent, diverse perspectives, and guts to engineer the extraordinary. **We change lives** . Each team… more
    Medtronic (11/19/25)
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  • Principal Reverse Systems Engineer

    RTX Corporation (Anaheim, CA)
    …at hiring manager discretion.** Applied Signal Technology (AST) is seeking a ** Principal Reverse Systems Engineer ** who strives for excellence and has ... a passion to be part of a team that strengthens our nation and improves the security of our world. AST provides trusted strategic and tactical SIGINT solutions that secure the interests of the US and its partners. AST's work in areas such as high-capacity… more
    RTX Corporation (10/15/25)
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  • Principal Systems Cyber Engineer

    RTX Corporation (Fullerton, CA)
    …that create a safer, more secure world. Raytheon is seeking a well-qualified ** Principal System Security Engineer (P4)** to join our Systems Security Engineering ... (SSE) team in developing solutions to protect the Warfighter's technology advantage. Systems Security Engineering creates holistic security solutions leveraging Cyber Security, Software Assurance and Supply Chain Risk Management to support Program Protection… more
    RTX Corporation (10/14/25)
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  • Sr Principal Mechanical Engineer

    Medtronic (Northridge, CA)
    …improves and solves. We have the talent, diverse perspectives, and guts to engineer the extraordinary. Learn more about our business, mission, and our commitment to ... improves and solves. We have the talent, diverse perspectives, and guts to engineer the extraordinary. **We change lives** . Each team member, each day, helps… more
    Medtronic (11/19/25)
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  • Principal Process Engineer

    Medtronic (Northridge, CA)
    …improves and solves. We have the talent, diverse perspectives, and guts to engineer the extraordinary. Learn more about our business, mission, and our commitment to ... improves and solves. We have the talent, diverse perspectives, and guts to engineer the extraordinary. **We change lives** . Each team member, each day, helps… more
    Medtronic (10/24/25)
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  • Senior Principal Geologist/ Engineer

    Stantec (San Bernardino, CA)
    …Engineering, or Science Bachelor's Degree. Licensed Professional Geologist or Engineer preferred. 20+ years of environmental consulting experience. Typical office ... environment working with computers and remaining sedentary for long periods of time. Field work may include exposure to the elements including inclement weather. This description is not a comprehensive listing of activities, duties or responsibilities that may… more
    Stantec (09/26/25)
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  • Sr Automation Design Engineer

    EMCOR Group (Chino, CA)
    …and automated control systems. **Job Summary** **Job Title:** Senior Automation Design Engineer ** Principal Duties and Responsibilities** + The ability to ... understand the design and intent of mechanical equipment and systems (Chiller, Boiler, Custom AHUs, Primary/Secondary pumping, Variable Flow Chilled Water Plants, Clean Room Applications, Demand Response, and Energy solutions). + Create and manage design… more
    EMCOR Group (10/14/25)
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  • Application Engineer III

    EMCOR Group (Chino, CA)
    …applications and automated control systems. **Job Summary** **Job Title:** Application Engineer III ** Principal Duties and Responsibilities** + Executes project ... start-ups, commissioning, testing, and troubleshooting of installed BAS controls and mechanical systems on assigned projects. + Participates in the layout and coordination of network drops, IP addresses and monitoring tools with customer's IT Department… more
    EMCOR Group (10/14/25)
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  • Principal Quality Systems Business Analyst

    Medtronic (Northridge, CA)
    …in a more connected, compassionate world. **A Day in the Life** The Principal Quality Systems Business Analyst will be working across the Diabetes Quality Function ... We have the talent, diverse perspectives, and guts to engineer the extraordinary. Learn more about our business, mission,...We have the talent, diverse perspectives, and guts to engineer the extraordinary. **We change lives** . Each team… more
    Medtronic (11/07/25)
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