Mechanical/HVAC Construction Project Engineer Jobs in St. Louis

3 listed openings in the St. Louis market at specialty contractors, including Mechanical & Industrial, Mechanical & Plumbing. Listings updated November 2, 2026.

3 openings. Updated November 2, 2026.

Showing 1–3 of 3 openingsUpdated weekly

Project Engineer Co-op (January 2027)

ACME Constructors, Inc. · Mechanical/HVAC

Added 2026-09-25

St. Louis, MOInternships · Project EngineerEmployer careers

Project Engineer Co-op (May 2027)

ACME Constructors, Inc. · Mechanical/HVAC

Added 2026-09-25

St. Louis, MOInternships · Project EngineerEmployer careers

Project Engineer

Murphy Company · Mechanical/HVAC · Plumbing

Added 2026-09-25

St. Louis, MOProject EngineerView posting

Browse related roles

Estimating Project Management BD/Sales Detailing/BIM Safety Admin/Accounting Internships

Nearby and regional markets

Kansas City Chicago Indianapolis Louisville Nashville Memphis

Roles by trade in St. Louis

Mechanical/HVAC · Project Management Plumbing · Project Management Concrete/Sitework · Project Management Mechanical/HVAC · Detailing/BIM Plumbing · Detailing/BIM Concrete/Sitework · Internships

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