• Rocket Lab Corporation (Long Beach, CA)
    …build and assemble satellite hardware and software that supports other satellite missions. PRINCIPAL SPACECRAFT SYSTEMS ENGINEER Based out of Rocket Lab's global ... is made up of engineers, technicians, and designers who design , create, and put together our own satellites for...headquarters in Long Beach, CA, the Principal Spacecraft Systems Engineer is responsible for… more
    Upward (08/04/25)
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  • Rocket Lab Corporation (Long Beach, CA)
    …Fundamental understanding of design principals and manufacturing methods. PRINCIPAL COMBUSTION DEVICES ENGINEER , YOU'LL BRING THESE QUALIFICATIONS: ... rewarding environment, this is your opportunity. SENIOR COMBUSTION DEVICES ENGINEER II / PRINCIPAL COMBUSTION DEVICES ...you'll take ownership of all aspects of a component: design and analysis, manufacturing and test support, and successful… more
    Upward (08/04/25)
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  • Rocket Lab Corporation (Long Beach, CA)
    …components YOU'LL BRING THESE QUALIFICATIONS AS A PRINCIPAL MANUFACTURING ENGINEER - PROPULSION: Bachelor's degree in mechanical engineering, manufacturing ... liquid launch vehicle, this is your opportunity! SENIOR / PRINCIPAL MANUFACTURING ENGINEER - PROPULSION Based out...Engineer level WHAT YOU'LL GET TO DO: Spearhead design reviews acting as an expert in design more
    Upward (08/04/25)
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  • Principal Mechanical Design

    Medtronic (Northridge, CA)
    …to innovation in a more connected, compassionate world. **A Day in the Life** As a Principal Mechanical Design Engineer , you will be a technical leader ... customers and suppliers. + **Continuous Improvement:** Champion best practices in mechanical design , risk management, regulatory compliance, and design more
    Medtronic (09/26/25)
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  • Sr Principal Mechanical

    Medtronic (Northridge, CA)
    …connected, compassionate world. **A Day in the Life** As a member of the Mechanical Engineering R&D group, the individual selected for this role will lead new ... and related accessories. They will work at the intersection of product design and product development, optimizing customer and business needs. The ideal candidate… more
    Medtronic (10/01/25)
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  • Senior Mechanical Engineer

    Parsons Corporation (Fountain Valley, CA)
    …Group in Pasadena, CA, is seeking a dynamic ** Principal Mechanical Engineer ** to lead and innovate in the design of cutting-edge wastewater treatment ... state-of-the-art designs. **Your Key Responsibilities** As a Principal Mechanical Engineer , you'll: + ** Design Excellence:** + Develop detailed designs… more
    Parsons Corporation (08/08/25)
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  • Principal Mechanical Engineer

    Leonardo DRS, Inc. (Cypress, CA)
    …systems for surveillance and targeting applications. We are seeking a highly motivated Principal Mechanical Engineer with a strong background in thermal ... + Proficiency with solid modeling tools, preferably Creo + Experience in mechanical design and documentation per ASME standards + Familiarity with DoD, NASA, and… more
    Leonardo DRS, Inc. (08/21/25)
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  • Principal Mechanical Engineer

    RTX Corporation (Fullerton, CA)
    …and naval electronics. The products support US Government and international customers. This Principal Mechanical Engineer role will support the Sentinel ... international travel. Drive technical and programmatic execution (performance/cost/schedule) for mechanical engineering across multiple products (IPTs) within the Sentinel… more
    RTX Corporation (08/29/25)
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  • Mechanical Principal Engineer

    BD (Becton, Dickinson and Company) (Irvine, CA)
    …an impact:** + Design and develop components and systems utilizing SolidWorks design tools while applying mechanical engineering principals. + Lead in the ... no small feat. It takes the imagination and passion of all of us-from design and engineering to the manufacturing and marketing of our billions of MedTech products… more
    BD (Becton, Dickinson and Company) (10/01/25)
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  • Managing Principal Engineer - MEP…

    Southland Industries (Garden Grove, CA)
    **POSITION SUMMARY** As a Managing Principal Engineer , you will manage, coordinate, and lead (conceptual) design on projects for the Southern California ... and management and directly supporting and developing the strategic growth of the design department and business services. A perfect candidate will be an excellent… more
    Southland Industries (09/01/25)
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  • Principal Engineer , NPI & Transfers

    Terumo Neuro (Aliso Viejo, CA)
    **12591BR** **Title:** Principal Engineer , NPI & Transfers **Job Description:** Responsible for leading robust manufacturing process development and enhancement ... Review and develop manufacturing documents (eg, MP, BOM, pFMEA, etc.) in equipment mechanical design . + Seek and implement innovative technologies to enhance… more
    Terumo Neuro (10/06/25)
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  • Principal Product Development…

    Integra LifeSciences (Irvine, CA)
    …pathways to advance patient outcomes and set new standards of care. The Principal Product Development Engineer will lead major system projects of varying ... across Integra with a focus on neurological diseases. The Principal Product Development Engineer will be responsible...will be responsible for the complete development of the mechanical , electrical, software and optical aspects of a project… more
    Integra LifeSciences (10/08/25)
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  • Principal R&D Engineer

    Envista Holdings Corporation (Orange, CA)
    **Job Description:** We're seeking a visionary ** Principal R&D Engineer ** to lead the design and development of cutting-edge dental devices-from ... + Expertise with SolidWorks highly preferred. + Extensive experience in electro- mechanical design and development highly preferred. + Experience managing… more
    Envista Holdings Corporation (09/06/25)
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  • Principal Hardware Engineer

    Microsoft Corporation (Aliso Viejo, CA)
    …will manage and optimize the Cloud infrastructure. We are looking for a ** Principal ** **Hardware Engineer ** to join the team. **Responsibilities** + Lead ... communities-to integrate innovative technologies seamlessly. + Articulate architectural and design tradeoffs across electrical, mechanical , thermal, and cost… more
    Microsoft Corporation (10/07/25)
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  • Principal Engineer , R&D

    Terumo Neuro (Aliso Viejo, CA)
    **13002BR** **Title:** Principal Engineer , R&D **Job Description:** Support and lead teams in the development of medical device products, including writing or ... for Hiring Ordinance, and San Francisco Fair Chance Ordinance. **External-Facing Title:** Principal Engineer , R&D **Posting Country:** US - United States… more
    Terumo Neuro (09/16/25)
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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 ... members all while embracing integrity, innovation and work-life balance. The **Senior Principal SEIT Engineer ** will have deep expertise in laboratory technology… more
    RTX Corporation (10/09/25)
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  • Principal Application Engineer

    Henkel (Irvine, CA)
    Principal Application Engineer **_About_** **_this_** **_Position_** At Henkel, you'll be part of an organization that's shaping the future through innovation, ... a good fit** + Minimum of a bachelor's degree in Materials Science/Engineering, Mechanical Engineering, Chemical Engineering, or a related field, with 10+ years of… more
    Henkel (10/10/25)
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  • Design Principal - Strategic Market…

    Legence (Long Beach, CA)
    …San Diego, Los Angeles, and San Jose. We are seeking a visionary ** Design Principal ** to lead engineering excellence, support strategic growth initiatives, and ... laboratories, municipal, and federal sectors. Our specialties include electrical, mechanical , plumbing, fire protection, and technology integration. Our offered… more
    Legence (10/01/25)
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  • Sr Automation Design Engineer

    EMCOR Group (Chino, CA)
    …efficient economic solutions to meet customer expectations. **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… more
    EMCOR Group (09/18/25)
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  • Application Engineer III

    EMCOR Group (Chino, CA)
    …efficient economic solutions to meet customer expectations. **Job Title:** Application Engineer III ** Principal Duties and Responsibilities** + Executes project ... of work. + Develop written sequence of operation based on mechanical drawings + Understand the design and intent of mechanical equipment and systems such… more
    EMCOR Group (09/18/25)
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