• Boeing (Hazelwood, MO)
    …Boeing Defense, Space & Security (BDS) has an exciting opportunity for a Lead Subsystems Mechanical Design & Analysis Engineer to join our Air Dominance team in ... * Direct the development and documentation of large scale, complex mechanical and fluid system and thermal environment requirements to establish the… more
    CollegeRecruiter (12/21/25)
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  • Boeing (Hazelwood, MO)
    …your future with us. Boeing Global Services is currently seeking a Senior Design Team Engineer to become part of the F/A-18 Complex Spares Team Lead Engineer in ... for this position. Position Responsibilities: * Serve as Technical Lead Engineer (TLE) for all Design Engineering activities including technical quality review… more
    CollegeRecruiter (12/21/25)
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  • Boeing (Berkeley, MO)
    …Skills/Experience): * Bachelor of Science degree in Engineering (with a focus on Mechanical , Civil, Aerospace Aeronautical or Material Sciences) * 2 or more years' ... for this job must satisfy the Company's Conflict of Interest (COI) assessment process . Drug Free Workplace: Boeing is a Drug Free Workplace where post offer… more
    CollegeRecruiter (12/21/25)
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  • 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 (12/22/25)
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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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  • Mechanical Systems Design & Analysis…

    The Boeing Company (St. Charles, MO)
    …your future with us. The Boeing Test & Evaluation (BT&E) team is seeking a ** Mechanical Systems Design & Analysis Engineer ** to join our team in **Saint Charles, ... MO** . On the BT&E Test Operations & Engineering team, the design engineer has the primary responsibility for the synthesis of requirements, creation of engineering… more
    The Boeing Company (12/15/25)
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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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  • 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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  • 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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  • 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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  • 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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  • Lead Subsystems Mechanical Design…

    The Boeing Company (Hazelwood, MO)
    …Defense, Space & Security (BDS) has an exciting opportunity for a **Lead Subsystems Mechanical Design & Analysis Engineer ** to join our **Air Dominance** team in ... + Direct the development and documentation of large scale, complex mechanical and fluid system and thermal environment requirements to establish the… more
    The Boeing Company (12/19/25)
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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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  • 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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  • Material & Process Engineer

    The Boeing Company (Berkeley, MO)
    …Team within Boeing Technology Innovation (BTI) is seeking a **Materials & Process Engineer ** **(Associate, Mid Level or Senior)** - **Composites Materials, ... Process , & Physics Engineer (MP&P)** to join...This role offers hands-on exposure to lab-scale manufacturing processes, mechanical and physical/chemical testing, data analysis, and cross-functional project… more
    The Boeing Company (12/20/25)
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