• Building Mechanical Engineer

    Burns & McDonnell (St. Louis, MO)
    **Description** The staff mechanical engineer is responsible for supporting the discipline lead at a project level on simple to complex projects. Project work ... process, corporate, industrial, manufacturing, government, and military facilities. The staff mechanical engineer coordinates with internal and external parties,… more
    Burns & McDonnell (11/04/25)
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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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  • 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 (10/28/25)
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  • Mechanical Engineer

    Ameren (St. Louis, MO)
    …include project support duties that may require long and/or non-standard work hours. The Mechanical Engineer will report to the Supervising Engineer - New ... provided to regular full-time employees. ​ **_About The Position_** _The Mechanical (ME) Engineer performs engineering studies, designs, technical specification… more
    Ameren (12/15/25)
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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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  • 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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  • Civil or Mechanical Engineer - Entry…

    Farnsworth Group (St. Louis, MO)
    Position: Civil or Mechanical Engineer - Entry Level Location: St. Louis, MO Job Id: 3163 # of Openings: 1 Join us and grow your career with a certified Great ... through your work. Farnsworth Group is seeking an Entry-Level Engineer in one of the below posting locations. In...software Specific Requirements include: + BS in Civil or Mechanical Engineering, from an ABET accredited institution + 0-3… more
    Farnsworth Group (12/16/25)
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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 (10/24/25)
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  • Lead Mechanical Engineer -- Energy…

    Sargent & Lundy (St. Louis, MO)
    …but are not limited to: + You will be responsible for leading the Mechanical Engineering design efforts for a team of junior and senior engineers and designers. ... include investigating, trouble-shooting, and solving a wide variety of mechanical engineering issues. + Act as the Mechanical... mechanical engineering issues. + Act as the Mechanical team lead in the coordination of detailed design… more
    Sargent & Lundy (10/14/25)
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  • Entry/Mid-Level Mechanical Engineer

    Sargent & Lundy (St. Louis, MO)
    …in response to project needs. + While supporting project teams with other Mechanical Engineers, you will be involved in system engineering, including the design, ... modification, and analysis of power plant mechanical systems. + There is the potential for you...Fundamentals of Engineering (FE) exam, and designation as an Engineer in Training. + Strong interest in numerical computations… more
    Sargent & Lundy (12/20/25)
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  • Senior Mechanical HVAC Engineer

    Jacobs (St. Louis, MO)
    …every market and every location. We're looking for an experienced, high-energy, HVAC Engineer to join our Building Mechanical team and help deliver innovative ... of HVAC systems. * Bachelor of Science Degree in Mechanical Engineering. * Adaptability to work within a fast-paced...with multiple deadlines. * Ability to lead a building mechanical team on a project and to collaborate with… more
    Jacobs (10/17/25)
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  • Associate Principal, Mechanical , Data…

    TYLin (St. Louis, MO)
    …leading clients and partners. **Job Summary** We're looking for an experienced Senior Mechanical Engineer to join our organization, which prides itself on ... everyday problems. While serving as mentor to the production teams, the mechanical engineer will engage in rigorous design and analysis processes using the most… more
    TYLin (11/12/25)
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  • Mechanical Engineering Fall Co-Op

    Ameren (St. Louis, MO)
    …customers. This general posting will be used to collect applications for our **2026 Mechanical Engineer Fall Co-Op** openings across the states of Illinois and ... **Must be a current student pursuing a** **Bachelors** **or** **Masters in Mechanical Engineering** **from an accredited college or university required with a… more
    Ameren (11/25/25)
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  • Senior Process Engineer - Specialty…

    Burns & McDonnell (St. Louis, MO)
    **Description** Burns & McDonnell is looking for an experienced Senior Process or Mechanical engineer to help us Wow our clients in the Specialty Chemical and ... new culture, we'd welcome you with open arms. The Senior Process Engineer will lead mechanical design project teams to create world class designs for new… more
    Burns & McDonnell (12/22/25)
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  • Dust Collection Design Engineer

    The Foth Companies (St. Louis, MO)
    …hot water, compressed air, CO2, Refrigeration, etc. + Experience in pneumatic and mechanical conveying systems + Registered Professional Engineer or ability to ... is currently seeking a team-focused, innovative, and results-oriented **Industrial Ventilation Engineer ** who has a desire to contribute to our clients' success… more
    The Foth Companies (12/05/25)
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  • Mechanical Construction Manager - (Data…

    Jacobs (St. Louis, MO)
    …that are changing our world. We're looking for an experienced and collaborative Mechanical Construction Manager to support our data center project in Baton Rouge, ... - so we can make big impacts on the world, together. As a Mechanical Construction Manager, your duties will include the following: * Conduct project meetings with… more
    Jacobs (11/24/25)
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  • Project Engineer (Entry Level)

    WESCO (St. Louis, MO)
    …and operational excellence in the critical infrastructure sector. As a Project Engineer , you will lead the design, planning, and execution of building system ... upgrades and repairs, focusing on electrical and mechanical infrastructure. This role involves managing the full project lifecycle-from pre-construction design and… more
    WESCO (12/19/25)
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  • Sr. Project Manager/ Engineer (Engineering…

    WESCO (St. Louis, MO)
    …excellence in the critical infrastructure sector. As a Senior Project Manager/ Engineer (Engineering & Construction) you will manage large-scale data center expansion ... specifications, and drawings for repair and replacement/upgrade of building electrical/ mechanical systems and other related systems/components. Manage the RFP… more
    WESCO (12/20/25)
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