Mechanic III

Overview

Performs advanced diagnostics and repairs across the full range of heavy equipment, trucks, and fleet vehicles with minimal supervision. Serves as a go-to technical resource for complex and recurring problems and helps develop the skills of other mechanics.

Job Responsibilities

Lead diagnosis and repair of the most complex equipment failures, including intermittent and multi-system problems Perform advanced troubleshooting on engines, drivetrains, hydraulics, electronic controls, and emissions systems Complete major rebuilds and overhauls to manufacturer specifications Recommend repair, rebuild, or replacement decisions based on equipment condition, cost, and downtime Coordinate major repairs, including parts, outside vendors, and scheduling, to reduce downtime and control cost Mentor and train mechanics on advanced diagnostic and repair methods Review completed work for quality and adherence to procedures when requested Identify recurring failures and contribute to preventive maintenance and reliability improvements Maintain thorough repair records and maintenance history Support field repairs on complex failures when needed Follow and reinforce safety, lockout/tagout, and environmental procedures Perform other related duties as assigned Knowledge, Skills, and Abilities: Expert knowledge of heavy equipment systems, electronic controls, and diagnostics Ability to resolve complex and intermittent problems that others cannot Advanced skill with OEM diagnostic software, schematics, and precision measuring tools Understanding of equipment lifecycle, maintenance planning, and repair cost tradeoffs Strong mentoring and knowledge-sharing skills Sound judgment that balances cost, safety, and equipment availability Clear communication with supervisors, operators, parts staff, and vendors Education and Certificates: High school diploma or equivalent 5+ years of heavy equipment or diesel repair experience, or an equivalent combination of training and experience Advanced technical certification in diesel or heavy equipment technology preferred ASE, OEM, or manufacturer-specific certifications preferred Complete set of personal hand tools Valid driver license; commercial driver license preferred Physical Requirements: Lift and carry up to 50 pounds regularly and heavier loads with assistance or lifting equipment Stand, walk, bend, kneel, crouch, and work in confined spaces for extended periods Climb on and off equipment using ladders, steps, and handholds, and work at heights with fall protection Use hands and arms continuously for tool operation and repetitive tasks Work in shop and outdoor conditions with exposure to noise, dust, fumes, and changing temperatures Wear required personal protective equipment throughout the shift