• Mechanical Engineer

    Belcan (High Ridge, MO)
    Mechanical Engineer Job Number: 361894 Category: -Engineering & Design SBU Description: A mid-level Mechanical Engineer job in High Ridge, MO is ... design experience and/or manufacturing experience. Job Duties: The engineer will complete mechanical design tasks and be the primary link between onsite… more
    Belcan (12/23/25)
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  • Senior Mechanical Engineer , Mission…

    JE Dunn Construction Company (St. Louis, MO)
    Senior Mechanical Engineer , Mission Critical, Traveler Location: Kansas City, MO, US, 64106Cleveland, OH, USDallas, TX, US, 75254Mesa, AZ, USClarksville, TN, ... alongside our diverse team of industry professionals._ **Role Summary** The M/E Engineer 3 will complete increasingly complex mechanical , electrical and field… more
    JE Dunn Construction Company (10/22/25)
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  • Assistant Mechanical Engineer

    Burns & McDonnell (St. Louis, MO)
    **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 (01/14/26)
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  • Lead Mechanical Engineer - Power…

    Burns & McDonnell (St. Louis, MO)
    **Description** Burns & McDonnell has an exciting opportunity for a Lead Mechanical Engineer to join the Power global practice. This position is responsible for ... as well as associated support facilities. As a Lead Mechanical Engineer , you will be responsible for front-end planning/preliminary design/code analysis;… more
    Burns & McDonnell (01/06/26)
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  • Mechanical Engineer 4

    CDM Smith (St. Louis, MO)
    …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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  • Forensic Mechanical Engineer , PE

    EFI Global (St. Louis, MO)
    …anywhere. Click here to learn more about EFI Global. Seeking a ** Mechanical Engineer ** with expertise in commercial, residential, or industrial ** ... mechanical systems, mechanical equipment, and mechanical component design and failure analysis** . **This** r **emote role working from a home based**… more
    EFI Global (12/10/25)
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  • Senior Mechanical Engineer - Chiller…

    Leonardo DRS, Inc. (High Ridge, MO)
    …our Commercial/Industrial business, please visit: www.marlocoil.com . **Job Summary** Mechanical Engineer position primarily responsible for developing Marine, ... for component sizing, selection, and performance predictions. May include Mechanical Analysis, Aerodynamics/Fluids, Thermal, Fluid Systems, Mechanical Packaging,… more
    Leonardo DRS, Inc. (01/08/26)
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  • Associate, Senior Mechanical

    TYLin (St. Louis, MO)
    …leading clients and partners. **Job Summary** We are looking for an Associate, Senior Mechanical Engineer in our St. Louis location, that can work in ... system replacement, and system upgrades **Qualifications:** + Bachelor's Degree in Mechanical Engineering + Professional Engineer license required + Significant… more
    TYLin (12/11/25)
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  • Mechanical Engineer

    CDM Smith (St. Louis, MO)
    …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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  • Mechanical Engineer

    Leonardo DRS, Inc. (High Ridge, MO)
    …details on our Commercial/Industrial operations, see www.marlocoil.com . **Job Summary** Mechanical Engineer position responsible for supporting projects and ... Responsibilities** * Support projects for the development and support of mechanical equipment, especially heat exchangers, air conditioning, refrigeration, and air… more
    Leonardo DRS, Inc. (01/09/26)
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  • Mechanical Engineer PE I

    ENFRA (Creve Coeur, MO)
    …you have any questions, feel free to ask during the interview process! **Overview** ** Mechanical Engineer PE I Responsibilities:** The Mechanical Engineer ... any other classification protected by law. Submit a Referral (https://careers-enfra.icims.com/jobs/9032/ mechanical - engineer -pe-i/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834357758) **Job Locations** _US-MO-Creve Coeur_ **ID** _2026-9032_… more
    ENFRA (01/12/26)
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  • Mechanical Engineer II - Thermal…

    Leonardo DRS, Inc. (High Ridge, MO)
    …business, please visit: www.marlocoil.com . **Job Summary** Join us as a Mechanical Engineer II, responsible for the development, testing and analysis ... system upgrades **Education & Experience Requirements** + Bachelor's Degree in mechanical engineering, chemical engineering, or related technical field + Comfortable… more
    Leonardo DRS, Inc. (01/07/26)
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  • Mechanical Engineer PE I

    ENFRA (Creve Coeur, MO)
    …than just valuesthey are the pillars of our continued success. **Overview** The Mechanical Engineer PE I applies standard engineering techniques to design, ... any other classification protected by law. Submit a Referral (https://careers-enfra.icims.com/jobs/7913/ mechanical - engineer -pe-i/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834357758) **Job Locations** _US-MO-Creve Coeur_ **ID** _2025-7913_… more
    ENFRA (10/21/25)
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  • Process Mechanical Engineer

    Jacobs (St. Louis, MO)
    …then Jacobs is where you belong. We are looking for a passionate and dedicated Process Mechanical Lead Engineer in Missouri. As part of our team, you'll have the ... wastewater challenges locally and worldwide. As our Missouri Process Mechanical Lead Engineer , you'll be charged with planning, preliminary, and detailed design… more
    Jacobs (01/08/26)
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  • Mechanical Engineer II

    Leonardo DRS, Inc. (High Ridge, MO)
    …on our Commercial/Industrial business, please visit: www.marlocoil.com . **Job Summary** The Mechanical Design Engineer position is responsible for developing a ... testing, qualification, and production. **Job Responsibilities** * Design of mechanical equipment, especially heat exchangers, air conditioning, refrigeration and… more
    Leonardo DRS, Inc. (01/07/26)
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  • Mechanical Operating Engineer (Night…

    Insight Global (O Fallon, MO)
    Job Description A client of Insight Global is looking for a night shift Mechanical Operating Engineer . This person will be responsible for the efficient ... equipment, chillers, pumps, cooling towers, and air distribution systems. The engineer monitors and adjusts mechanical /pneumatic equipment, performs repairs, and… more
    Insight Global (12/02/25)
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  • Experienced Mechanical Design Review…

    The Boeing Company (Hazelwood, MO)
    …the future! #TheFutureIsBuiltHere #ChangeTheWorld BGS is seeking an **Experienced Mechanical Design Review Engineer ** within Government Training Engineering ... A successful candidate will have detail-oriented Drawing Quality Check Engineer mindset with strong design fundamentals, cross-discipline engineering insight, and… more
    The Boeing Company (01/09/26)
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  • Experienced Mechanical Systems Design…

    The Boeing Company (Hazelwood, MO)
    …Space & Security (BDS) Phantom Works Division is seeking an **Experienced Mechanical Systems Design & Analysis Engineer ** for advanced aircraft development ... you! **Position Responsibilities:** + Support the development and documentation of mechanical and fluid system and thermal environment requirements to establish the… more
    The Boeing Company (01/11/26)
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  • Senior Mechanical Systems Design & Analysis…

    The Boeing Company (Hazelwood, MO)
    …with us. Boeing Defense, Space & Security (BDS) is looking for a **Senior Mechanical Systems Design & Analysis Engineer ** to join our team **Phantom Works** ... Lead and provide technical quality review of the development and documentation of mechanical and fluid systems and thermal environment to establish the system design… more
    The Boeing Company (12/25/25)
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  • Lead or Senior Mechanical Systems Design…

    The Boeing Company (St. Charles, MO)
    …Boeing Defense, Space & Security (BDS) is hiring a **Lead** or **Senior Mechanical Systems Design & Analysis Engineer (Ordnance)** in **Saint Charles, ... Missouri.** Boeing has an established legacy of national defense through our Space, Intelligence & Weapon Systems programs. BDS Engineering delivers decisive mission advantages through cutting-edge capabilities and supports design, manufacturing, and services… more
    The Boeing Company (12/25/25)
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