• Assistant Mechanical Engineer

    Burns & McDonnell (Brea, CA)
    **Description** The Assistant Mechanical Engineer will work under the supervision of a licensed professional engineer to assist project teams to create world ... airports, institutional, industrial, manufacturing, government and military facilities. The Assistant Mechanical Engineer will work with the project team… more
    Burns & McDonnell (12/04/25)
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  • Mechanical Engineer - Aviation…

    Burns & McDonnell (Brea, CA)
    **Description** The Mechanical Engineer will work on project teams to create world class designs for new projects, alterations and redevelopments on a variety of ... HVAC and plumbing projects primarily for aviation, government, and military facilities. The Mechanical Engineer will work with the project team throughout the… more
    Burns & McDonnell (11/20/25)
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  • Senior Mechanical Engineer

    Essel (Downey, CA)
    …to meet the needs of our diverse customer base. Position Overview: The Senior Mechanical Engineer plays a crucial role in our team, responsible for designing ... technical challenges. Conclusion: If you are a skilled and experienced Mechanical Engineer looking for an exciting opportunity to contribute to the development… more
    Essel (12/08/25)
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  • Mechanical Engineer - Transmission…

    Burns & McDonnell (Brea, CA)
    **Description** The Mechanical Engineer will work on project teams to create world class designs for new projects, alterations and redevelopments on a variety of ... and pump stations and other areas related to the industry. The Staff Process Engineer will work with the project team throughout the design and construction process,… more
    Burns & McDonnell (11/17/25)
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  • Mechanical Engineer 4

    CDM Smith (Rancho Cucamonga, CA)
    …address today's needs and anticipate tomorrow's demands. We're looking for a skilled Mechanical Engineer with expertise in HVAC and plumbing systems. This role ... future leadership roles. - Performing other duties as required. **Job Title:** Mechanical Engineer 4 **Group:** ISO **Employment Type:** Regular **Minimum… more
    CDM Smith (11/26/25)
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  • Mechanical Engineer , PE - Accident…

    EFI Global (Orange, CA)
    mechanical failures and vehicle accidents? We are seeking a highly skilled** ** Mechanical Engineer with a Professional Engineer (PE) license** **to join ... leverage your technical knowledge and investigative mindset to analyze mechanical systems, reconstruct accident scenarios, and provide clear, defensible conclusions… more
    EFI Global (11/15/25)
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  • Mechanical Engineer

    Actalent (Pasadena, CA)
    …apply to this posting and email your resume to ###@actalentservices.com** Description Mechanical Engineer with 3-5 years of experience, proficient in SolidWorks ... Analysis (FEA) but not necessarily performing it. Skills gd&t, mechanical engineering, Space, Aerospace, avionics systems, defense aerospace, project engineering,… more
    Actalent (12/24/25)
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  • Principal Mechanical Engineer

    Leonardo DRS, Inc. (Cypress, CA)
    …for surveillance and targeting applications. We are seeking a highly motivated Principal Mechanical Engineer with a strong background in thermal analysis to join ... technologies. **Basic Qualifications and Required Skills** + Bachelor's degree in Mechanical or Aerospace Engineering with 10+ years of relevant experience (8+… more
    Leonardo DRS, Inc. (11/20/25)
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  • Intern/Co-op - Refining Mechanical

    Marathon Petroleum Corporation (Wilmington, CA)
    …develops our people, and fosters a collaborative team environment. Responsibilities: As a Mechanical Engineer at a Marathon refinery, you can expect to become ... team of professionals who run a specific portion of the refining process. Most often, Mechanical Engineers will have an opportunity to work on more than one area of… more
    Marathon Petroleum Corporation (11/24/25)
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  • Mechanical Engineer

    CDM Smith (Rancho Cucamonga, CA)
    …work of junior engineers on project work. **Job Title:** Mechanical Engineer 5(Industrial/Process) **Group:** IND **Certification/License Requirements:** ... **Employment Type:** Regular **Minimum Qualifications:** Bachelor's degree in Mechanical , Architectural or Chemical Engineering, or in Engineering Technology or… more
    CDM Smith (11/08/25)
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