Heavy Equipment Mechanic

Ontario Transit Group • Toronto, Canada

Location Toronto, Ontario
Job Type Full-time
Posted June 08, 2026

Role Description

Job Description

The MSV Mechanic is responsible for maintaining, diagnosing, and repairing Multi‑Service Vehicles (MSVs) used to support Tunnel Boring Machine (TBM) operations on large‑scale tunnelling projects. This role ensures the reliability, safety, and efficiency of MSVs that transport segments, materials, equipment, and personnel throughout the underground tunnel system. The mechanic works closely with operators, tunnel supervisors, and maintenance teams in a demanding underground environment.

Key Responsibilities

  • Inspect, troubleshoot, and repair MSV mechanical systems, including engines, power units, steering systems, transmission assemblies, and drivetrain components.
  • Maintain and service hydraulic, pneumatic, compressed‑air, and electrical systems found in MSV equipment.
  • Perform scheduled preventive maintenance, lubrication, adjustments, and component replacements to ensure equipment reliability in continuous tunn...

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