Mechanical engineer jobs in O'Fallon, MO and nearby

Mechanical engineer jobs within 25 miles of O'Fallon, MO. Nearby towns and cities are included. Distances are straight-line, not driving distances.

Hiring at a glance

View jobs
Open jobs
29
Employers
23

Advertised starting pay

Not enough comparable pay figures yet.

Employer-advertised starting pay, not employee salaries. Currencies and pay periods stay separate.

Where work happens

Remote
0%0 listings
Hybrid
0%0 listings
On-site
3%1 listing

Not specified: 97% (28 listings)

Employers hiring include ENFRA LLC (4), Sargent & Lundy (3), System One (2).

Sources & calculation notes

These figures describe the listings on this role page at the date shown, not the whole job market. Listings can change.

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Hybrid and on-site classifications may be inferred from descriptions. Check the original ad. How we count

Mechanical engineer jobs in O'Fallon, MO and nearby

Within 25 miles

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  • Mechanical Design Engineer

    Actalent

    Bridgeton, MO

    Job Title: Mechanical Design EngineerJob DescriptionThe Mechanical Design Engineer will design, develop, and integrate mechanical components and assemblies for complex hardware systems.…

  • Sr. Manufacturing Mechanical Engineer

    ClarkDietrich

    O'Fallon, MO

    …ClarkDietrich team by applying to the Senior Manufacturing Mechanical Engineer position at our one following locations in GA, MD, FL, CT, MO, IL, OK, OH,…

  • Government Training Engineering - Mechanical Design Engineer (Associate or Experienced)

    The Boeing Company

    Hazelwood, MO

    The Boeing Government Training Engineering Hardware Design Team is currently looking for a Mechanical Design Engineer to join their team in Hazelwood, MO or Oklahoma City, OK . This…

  • Mechanical Design Engineer @ NDBS

    Kelso Industries

    Maryland Heights, MO

    At Kelso Industries, 5,000+ employees across 40+ companies work together to deliver exceptional HVAC, mechanical, plumbing, refrigeration, and electrical solutions nationwide. Join us to…

  • Mechanical Design Engineer

    National Design Build Services

    Maryland Heights, MO

    National Design Build Services (NDBS) is a mechanical design/build firm based in St. Louis, MO. We design and deliver HVAC, refrigeration and process systems for commercial, industrial and…

  • Lead Mechanical Engineer

    BioFire Diagnostics, LLC.

    Hazelwood, MO

    This lead engineer works primarily with the mechanical design aspects of consumables and reagents team, representing Systems Development in reagent design – generally under the leadership…

  • Mechanical Engineer

    Hargrove Engineers & Constructors

    Chesterfield, MO

    …level will assist in the design of larger and more complex mechanical engineering assignments. This work will be performed under close…

  • Mechanical Engineer PE I

    System One

    Creve Coeur, MO

    The Mechanical Engineer PE I applies standard engineering techniques to design, analyze, test, maintain, repair, or improve products, components, or assemblies.

  • Mechanical Engineer PE II

    System One

    Creve Coeur, MO

    The Mechanical Professional Engineer II (PE II) independently applies advanced engineering techniques to design and coordinate mechanical systems for energy and infrastructure projects…

  • Mechanical Engineer PE I

    ENFRA LLC

    Creve Coeur, MO

  • Mechanical Engineer

    FlightSafety International

    Hazelwood, MO

  • MECHANICAL DESIGN ENGINEER

    Align Production Systems

    Chesterfield, MO

    Job Summary: We are seeking an energetic, talented and driven Mechanical Design Engineer to join our design team. You will be join

  • Lead Mechanical Engineer

    MISSOURI COBALT, LLC

    Clayton, MO

    The Lead Mechanical Engineer is a senior leadership role responsible for overseeing the mechanical engineering function for one or more processing areas within mining and minerals…

  • Mechanical Design Engineer (New Product Development)

    Hunter Engineering Company

    Bridgeton, MO

    Looking to build your career with a company that values innovation, stability, and people? Join our dedicated team as a R&D Engineer II - Mechanical, in Bridgeton, MO!

  • Mechanical Engineer Co-Op

    Bayer

    Chesterfield, MO

  • Mechanical Engineer I/II

    True Fitness Technology Inc

    Saint Charles, MO

  • ASSOCIATE MECHANICAL DESIGN ENGINEER

    Bascom Hunter Technologies

    O'Fallon, MO

    The Associate Mechanical Design Engineer supports the design, analysis, development, and qualification of mechanical and electromechanical products. Working under the guidance of senior…

  • Mechanical Engineer - Asset Management - Granite City, IL

    Orbital Engineering

    Old Jamestown, MO

    Orbital is seeking an experienced Mechanical Engineer to support the execution of an Asset Integrity and Asset Management program at a client facility in Granite City, IL. This is a…

  • Mechanical Design Engineer

    Hydromat

    St. Louis, MO

    Work for Hydromat to grow and develop your career through intellectual challenges and opportunities. The Mechanical Design Engineer utilizes knowledge of engineering practices (mathematics,…

  • Lead Mechanical Engineer

    bioMérieux

    Hazelwood, MO

    This lead engineer works primarily with the mechanical design aspects of consumables and reagents team, representing Systems Development in reagent design – generally under the leadership…

  • Senior Mechanical Engineer

    Symbiotic Services

    Chesterfield, MO

    Symbiotic Services is seeking a Senior Mechanical Engineer to support complex industrial and commercial projects within a design-build environment. This role combines technical design…

  • Mechanical Engineer Co-Op (Spring 2027)

    Leonardo DRS, Inc.

    Bridgeton, MO

    Leonardo DRS Land Systems is seeking a Spring through Summer (January 2027– August 2027) Mechanical Engineering Co-Op. This position is based out of our Bridgeton, MO facility and will have…

  • Senior Building Mechanical Engineer (HVAC) - Water / Wastewater

    Brown and Caldwell

    Clayton, MO

    The Senior Building Mechanical (HVAC) Engineering role takes on more complex projects and leads the development of HVAC, plumbing, and fire sprinkler calculations. The role interprets…

  • Mechanical Engineer PE III

    ENFRA LLC

    Creve Coeur, MO

  • Mechanical Engineer PE II

    ENFRA LLC

    Creve Coeur, MO