• Process Mechanical Engineer

    Jacobs (St. Louis, MO)
    …good, 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, ... water and wastewater challenges locally and worldwide. As our Missouri Process Mechanical Lead Engineer , you'll be charged with planning, preliminary,… more
    Jacobs (10/24/25)
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  • Mechanical Engineer PE I

    ENFRA (Creve Coeur, MO)
    …you. If you have any questions, feel free to ask during the interview process ! **Overview** ** Mechanical Engineer PE I Responsibilities:** The Mechanical ... any other classification protected by law. Submit a Referral (https://careers-enfra.icims.com/jobs/6370/ mechanical - engineer -pe-i/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834357758) **Job Locations** _US-MO-Creve Coeur_ **ID** _2024-6370_… more
    ENFRA (10/24/25)
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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 ... looking for a new culture, we'd welcome you with open arms. The Senior Process Engineer will lead mechanical design project teams to create world class… more
    Burns & McDonnell (09/22/25)
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  • Mechanical Engineer 5(Industrial/…

    CDM Smith (St. Louis, MO)
    …the work of junior engineers on project work. **Job Title:** Mechanical Engineer 5(Industrial/ Process ) **Group:** IND **Certification/License Requirements:** ... EPC projects for industrial / petrochemical clients focused on process and utility piping, process mechanical...3D and 4D software and practices. Expert Knowledge of engineer principles of design. Expert Knowledge of Microsoft business… more
    CDM Smith (11/08/25)
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  • 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 ... , 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, ... diverse team of industry professionals._ **Role Summary** The M/E Engineer 3 will complete increasingly complex mechanical ,... and electrical options as part of the preconstruction process and completes systems analysis for select projects. +… 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 (09/15/25)
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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, ... in a variety of configurations to cool, heat, and dehumidify air streams for process and building comfort. We pride ourselves on having equipment on most surface… more
    Leonardo DRS, Inc. (10/09/25)
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  • Rotating Machinery Mechanical Design…

    GE Aerospace (St. Louis, MO)
    …team of the nation's best, regardless of where we live. The Rotating Machinery Mechanical Design Engineer is key in coordinating the resources and activities ... analysis and containment analysis. + Work closely with the Systems Engineer , performance engineers, aerodynamicists, structural engineers, and program team to ensure… more
    GE Aerospace (09/27/25)
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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 ... in a variety of configurations to cool, heat, and dehumidify air streams for process and building comfort. We pride ourselves on having equipment on most surface… more
    Leonardo DRS, Inc. (10/08/25)
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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. ... assignments that include investigating, trouble-shooting, and solving a wide variety of mechanical engineering issues. + Act as the Mechanical team lead… more
    Sargent & Lundy (10/14/25)
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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 ... and selecting these systems, the development of Air Flow Diagrams (AFDs), Process and Instrumentation Diagrams (P&IDs), and general arrangements. * Development of… more
    Jacobs (10/17/25)
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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 ... in a variety of configurations to cool, heat, and dehumidify air streams for process and building comfort. We pride ourselves on having equipment on most surface… more
    Leonardo DRS, Inc. (10/08/25)
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  • Mechanical Project Engineer

    Actalent (Sauget, IL)
    Mechanical Project Engineer Location: Sauget, IL Industry: Chemical Manufacturing Join a Global Chemical Leader Driving Innovation and Sustainability We are a ... Concept to Completion: Manage initiatives using the Front-End Loading (FEL) process , preparing documentation and defining scope with engineering teams. + Collaborate… more
    Actalent (11/21/25)
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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 ... While serving as mentor to the production teams, the mechanical engineer will engage in rigorous design...and ensure quality are in line with the company mechanical engineering process . + Participate in scoping,… more
    TYLin (11/12/25)
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  • Chemical Process Engineer

    Kelly Services (St. Louis, MO)
    Chemical Engineer (St. Louis, Missouri) We are looking for an experienced Chemical Engineer that can help our client set up small molecule pharmaceutical ... engineering to ensure fit-for-purpose systems. Validation & Compliance: Lead/author process validation docs, batch records, change controls; investigate deviations/OOS… more
    Kelly Services (11/19/25)
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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, ... make big impacts on the world, together. As a Mechanical Construction Manager, your duties will include the following:...deliverables, which will support the end of project turnover process . * Ensure all construction is in compliance with… more
    Jacobs (11/24/25)
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  • Advanced Manufacturing Engineer , Sr…

    Honeywell (Olivette, MO)
    As an Advanced Manufacturing Engineer here at Honeywell, you will optimize production processes, drive continuous improvement, and collaborate with teams to achieve ... Danville, KY location on a hybrid work schedule. As a Senior Advanced Manufacturing Engineer here at Honeywell, you will play a critical role in driving innovation,… more
    Honeywell (11/06/25)
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  • Senior Manufacturing Engineer - Lean…

    Honeywell (St. Louis, MO)
    As a Sr Manufacturing Engineer here at Honeywell, you will lead initiatives to enhance manufacturing operations and drive process improvements within our ... work schedule. In this role, you will impact the overall manufacturing process by implementing innovative solutions that enhance productivity, reduce costs, and… more
    Honeywell (10/29/25)
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  • Materials Process and Physics (MP&P)…

    The Boeing Company (St. Charles, MO)
    …future with us. The weapons M&PT engineering team is seeking a **Materials Process and Physics (MP&P) Engineer (Metals/Joining/Metallurgy)** to join our team in ... degree or higher in aerospace, material science, metallurgical engineering and/or mechanical engineering + Active Security Clearance + 7+ Experience with the… more
    The Boeing Company (11/19/25)
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