Heavy Equipment Mechanic

Responsibilities

• Inspect, troubleshoot, and repair MSV mechanical systems including engines, power units, and drivetrain components
• Maintain hydraulic, pneumatic, compressed-air, and electrical systems
• Perform scheduled preventive maintenance, lubrication, and component replacements
• Diagnose faults using mechanical, hydraulic, and electrical testing tools
• Conduct pre-use and post-use inspections on braking systems, safety interlocks, and steering modules
• Ensure compliance with tunnelling safety regulations and confined-space operational rules
• Coordinate with TBM logistics teams to ensure vehicle availability
• Follow Ontario OHSA tunnel-specific safety procedures and emergency response expectations

Requirements

• Completion of a 3–4-year apprenticeship program in industrial mechanic/millwrighting or 5+ years of experience in industrial machinery repair
• Strong knowledge of MSV components including power units, hydraulic systems, and electrical systems
• Ability to read technical manuals, schematics, and equipment specifications
• Skilled in diagnostics and heavy-equipment repair
• Familiarity with underground and tunnelling operations and confined-space work
• Physically capable of lifting, climbing, and crawling in restricted spaces
• Strong communication and teamwork skills

Preferred Qualifications

• Industrial Mechanic (Millwright) trade certification
• Additional mechanical or electrical equipment certifications
• Understanding of underground rescue procedures and air-monitoring principles

About the Company

Ontario Transit Group (OTG) is undertaking the design, build, and finance of the Ontario Line Southern Civil, Stations, and Tunnel package. We are working to strengthen Ontario’s economy and improve transit access for millions of residents.