Job Summary

The Lead Heavy Machinery / Diesel Mechanic is responsible for overseeing the inspection, maintenance, and repair of heavy equipment and over-the-road (OTR) trucking fleets. This position provides hands-on technical expertise while leading maintenance personnel to ensure equipment reliability, safety compliance, and minimal operational downtime in demanding mining and hauling environments.

Key ResponsibilitiesMechanical & Technical Duties

- Diagnose, repair, and maintain diesel engines, powertrains, braking systems, hydraulics, electrical systems, and emissions systems

- Service mining equipment including haul trucks, loaders, excavators, and support equipment

- Maintain OTR trucks, trailers, and fleet vehicles in compliance with DOT regulations

- Perform preventive maintenance inspections to maximize equipment availability and lifespan

- Troubleshoot complex mechanical and electronic issues using diagnostic software and service manuals

Leadership & Supervision

- Lead, supervise, and mentor assistant mechanic

- Assign daily work orders and prioritize repairs based on production needs

- Inspect completed repairs for quality, safety, and regulatory compliance

- Provide technical guidance on complex or critical equipment failures

- Support training initiatives and skill development within the maintenance team

Safety, Compliance & Operations

- Ensure compliance with MSHA, DOT, OSHA, and environmental regulations

- Enforce lockout/tagout, confined space, and safe work practices

- Maintain accurate maintenance records, inspection reports, and regulatory documentation

- Coordinate with mine operations, dispatch, and fleet management to reduce downtime

- Assist with audits, inspections, and safety meetings

Inventory & Maintenance Planning

- Manage parts usage, tools, and shop equipment

- Coordinate ordering of parts and materials to support fleet uptime

- Recommend equipment rebuilds, replacements, or upgrades

- Assist in developing maintenance schedules and long-term asset plans

QualificationsRequired

- High school diploma or GED (technical or trade school preferred)

- 5–10+ years of experience as a diesel or heavy equipment mechanic

- Strong working knowledge of heavy haul trucks, diesel engines, hydraulics, electrical systems, and air brake systems

- Proven leadership or lead mechanic experience

- Ability to interpret technical manuals, schematics, and diagnostic data

- Valid driver’s license

Preferred

- CDL (Class A or B)

- ASE certifications (T-Series preferred)

- MSHA Part 46 or Part 48 training

- OEM certifications

- Experience with fleet maintenance software and electronic diagnostic tools

Skills & Competencies

- Advanced diagnostic and troubleshooting ability

- Strong leadership and decision-making skills

- High level of safety awareness and regulatory knowledge

- Effective communication with operations and management

- Ability to work under pressure in production-critical environments

- Strong organizational and documentation skills

Work Environment

- Combination of shop, mine site, and field service work

- Exposure to dust, noise, vibration, and extreme weather conditions

- May require extended hours or on-call availability

Compensation & Benefits (optional)

- Competitive wage based on experience

- Overtime opportunities

- Health, dental, and vision insurance

- Retirement plan options

- Paid time off and holidays

- Training, certification, and advancement opportunities

Job Type: Full-time

Pay: $28.00 - $45.00 per hour

Expected hours: No less than 40 per week

Benefits:

- 401(k)

- 401(k) matching

- Dental insurance

- Employee assistance program

- Employee discount

- Flexible schedule

- Flexible spending account

- Health insurance

- Health savings account

- Life insurance

- Paid time off

- Parental leave

- Vision insurance

Work Location: In person