Mechanical Engineer Jobs in O'Fallon MO
1 day ago
1.
Remote VDC Estimator: Mechanical & Plumbing Costing
Engineering (Mechanical Engineer, Estimator)
A prominent supply company is seeking an experienced Virtual Design & Construction Estimator to support their Commercial Virtual...
Remote VDC Estimator: Mechanical & Plumbing Costing JobListing for: Ferguson Enterprises, Inc. |
1 day ago
2.
Jurisdictional Boiler Inspector
Engineering (Mechanical Engineer, Operations Engineer, Environmental Engineer, Civil Engineering)
Position: Jurisdictional Boiler Inspector with SIGNING BONUS - Jurisdictional Boiler Inspector with SIGNING BONUS (Full - Time) - Kansas...
Jurisdictional Boiler Inspector JobListing for: Boiler & Property Consulting, LLC |
1 day ago
3.
Senior Life Sciences Mechanical Lead Engineer
Engineering (Mechanical Engineer, Quality Engineering, Environmental Engineer, Building Services Engineer)
A prominent construction firm in Missouri is seeking a Mechanical / HVAC Lead Engineer to provide technical leadership for life sciences...
Senior Life Sciences Mechanical Lead Engineer JobListing for: Gilder Search Group |
1 day ago
4.
MEP Project Manager
Engineering (Mechanical Engineer, Building Services Engineer, Civil Engineering, Electrical Engineering)
Clayco is a full - service, turnkey real estate development, master planning, architecture, engineering, and construction firm that...
MEP Project Manager JobListing for: Gilder Search Group |
1 day ago
5.
Mechanical Engineer: P& Design & System Sizing
Engineering (Mechanical Engineer, Engineering Design & Technologists, Manufacturing Engineer)
Position: Mechanical Engineer: P&ID Design & System Sizing - Martin Energy Group is looking for a Mechanical Engineer to manage and...
Mechanical Engineer: P& Design & System Sizing JobListing for: Martin Energy Group |
1 day ago
6.
Reliability, Maintainability System Health Engineer
Engineering (Systems Engineer, Mechanical Engineer, Aerospace / Aviation / Avionics, Electrical Engineering)
Position: Reliability, Maintainability, & System Health Engineer - Overview - Reliability, Maintainability, & System Health...
Reliability, Maintainability System Health Engineer JobListing for: Boeing Future of Flight |
1 day ago
7.
Mechanical Engineer II
Engineering (Engineering Design & Technologists, Mechanical Engineer, Electrical Engineering)
* Define and execute capital projects for facility repair and upgrades to ensure safe and efficient plant operations. Prepare...
Mechanical Engineer II JobListing for: ServiceSource Inc |
1 day ago
8.
Lead Mechanical Engineer
Engineering (Mechanical Engineer, Environmental Engineer, Building Services Engineer)
Clayco is a full - service, turnkey real estate development, master planning, architecture, engineering, and construction firm that...
Lead Mechanical Engineer JobListing for: Gilder Search Group |
1 day ago
9.
Engineering Design Intern: Prototyping, CAD & Mentorship
Engineering (Engineering Design & Technologists, Mechanical Engineer, CAD/ AutoCAD/ Mechanical Design)
A leading manufacturer of home repair products is seeking an Engineering Design Intern for Summer 2026. The intern will work under the...
Engineering Design Intern: Prototyping, CAD & Mentorship JobListing for: The Euclid Chemical Co. |
1 day ago
10.
Mechanical Engineer
Engineering (Mechanical Engineer, Engineering Design & Technologists, Manufacturing Engineer)
Description Purpose of the Role - To manage and design the mechanical aspects of projects, including but not limited to, hydronic...
Mechanical Engineer JobListing for: Martin Energy Group |