• Boeing (St. Louis, MO)
    …customers. Position Responsibilities: Overall subject matter expert and technical lead engineer for the Mission and Safety Computers hardware for requirements ... Tactical Fighters program needs Develop interface control documents describing mechanical , electrical, and software interfaces Perform technical problem investigation… more
    JobLookup XML (01/05/26)
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  • Boeing (St. Louis, MO)
    …Space & Security (BDS) is looking for a Senior Electromagnetics Material Engineer to join the Advanced Materials and Platform Technologies (AMPT) program within ... integrating Electromagnetic (EM) effects engineering into material and material process development, manufacture, and delivery. The position requires interfacing… more
    JobLookup XML (01/05/26)
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  • Boeing (St. Louis, MO)
    …us. Boeing Defense, Space & Security (BDS) , is seeking a Tactical RF Sensors Engineer (Mid-Level or Senior) to be the lead for a team of engineers, in Berkeley, ... of Science degree in Engineering (with a focus in Electrical, Mechanical or Aeronautical), Computer Science, Data Science, Mathematics, Physics, Chemistry or… more
    JobLookup XML (01/05/26)
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  • Boeing (St. Louis, MO)
    …Skills/Experience): Bachelor of Science degree in Engineering (with a focus on Mechanical , Civil, Aerospace Aeronautical or Material Sciences) 2 or more years' ... this job must satisfy the Company's Conflict of Interest (COI) assessment process . The full job description covers all associated skills, previous experience, and… more
    JobLookup XML (01/05/26)
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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 (01/08/26)
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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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  • 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. (01/08/26)
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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 ... solutions are designed to cool, heat, and dehumidify air streams for both process applications and building comfort. Our equipment is proudly installed on most US… more
    Leonardo DRS, Inc. (01/09/26)
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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 ... 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. (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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  • 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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  • 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. (01/07/26)
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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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  • 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 (12/25/25)
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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 (12/23/25)
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