Mechanical engineer jobs in Saint Peters, MO and nearby (44 jobs)

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

Hiring at a glance

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44
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
5%2 listings

Not specified: 95% (42 listings)

Employers hiring include Leonardo DRS, Inc. (6), Sargent & Lundy (6), ENFRA LLC (4).

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 Saint Peters, MO and nearby

Within 25 miles

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  • Mechanical Engineer II

    Beckwood Press

    Fenton, MO

    …hydraulic presses and automation equipment and is seeking a Mechanical Engineer II to join our engineering team and contribute to the design and development of advanced manufacturing…

  • 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 joining a team of skilled designers and play a critical role in…

  • Lead Mechanical Engineer

    MISSOURI COBALT, LLC

    Clayton, MO

    Professional Engineer (PE) license required or ability to obtain within one year; PMP certification is a plus

  • 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!

  • Entry-Level Mechanical Engineer - Food & Beverage

    Mead & Hunt

    Fenton, MO

    …consulting firm, has a position available for an entry-level mechanical engineer with our Food & Beverage group in our Fenton, MO office…

  • 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 | Projects

    Leonardo DRS, Inc.

    High Ridge, MO

    Mechanical Engineer position responsible for leading projects and developing a variety of HVAC&R product designs for both commercial and defense markets including heat exchangers, air…

  • Mechanical Engineer II - Thermal Systems

    Leonardo DRS, Inc.

    High Ridge, MO

    Bachelor’s Degree in Mechanical Engineering, Chemical Engineering, or related technical field

  • 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…

  • Mechanical Engineer II - Product Engineering

    Leonardo DRS, Inc.

    High Ridge, MO

    Mechanical Engineer position responsible for supporting projects and developing a variety of HVAC&R product designs for both commercial and defense markets including heat exchangers, air…

  • Mechanical Engineer II - Test Engineering

    Leonardo DRS, Inc.

    High Ridge, MO

    Involved with the design, fabrication and modification of mechanical and/or electro mechanical components, sub-systems and systems. May include Mechanical Analysis, Aerodynamics/Fluids,…

  • Senior Mechanical Engineer | Chiller Systems

    Leonardo DRS, Inc.

    High Ridge, MO

    Join our High Ridge, MO Engineering team as a Senior Mechancial Engineer primarily focused on developing marine, water-cooled chiller systems. In this role, you will lead the development of…

  • 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

    The Mechanical Professional Engineer III (PE III) serves as a senior technical leader responsible for the design, coordination, and delivery of complex mechanical systems for energy and…

  • Mechanical Engineer PE II

    ENFRA LLC

    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

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

  • Lead Mechanical Engineer -- Energy & Industrial Group

    Sargent & Lundy

    Clayton, MO

    Louis metropolitan area and will require in-office work 3 days per week

  • Mechanical Engineer 1 (Entry Level) - Energy & Industrial (January 2027)

    Sargent & Lundy

    Clayton, MO

    This position is based on a hybrid work schedule and will require in-office work 3 days per week

  • Mechanical Engineer - Senior-Level

    Sargent & Lundy

    Clayton, MO

    This position is based on a hybrid work schedule and will require in-office work 3 days per week

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