Diesel Mechanic Jobs

About The Position

Requirements

• High school diploma or GED preferred.
• Previous experience as a Diesel Mechanic, Fleet Mechanic, Truck Mechanic, Heavy Equipment Mechanic, or similar role.
• Experience diagnosing and repairing diesel engines, trucks, trailers, and fleet equipment.
• Strong knowledge of preventative maintenance, troubleshooting, and mechanical repair.
• Ability to diagnose and repair engine, brake, suspension, fuel, cooling, hydraulic, and electrical systems.
• Ability to read and understand service manuals, repair procedures, inspection forms, and maintenance documentation.
• Ability to use hand tools, power tools, diagnostic equipment, and shop equipment safely and effectively.
• Strong attention to detail and commitment to safe work practices.
• Ability to work independently and as part of a team.
• Strong communication skills and ability to coordinate with supervisors, dispatch, drivers, and operations personnel.
• Valid driver's license required.

Nice To Haves

• Experience working on fuel trucks, tankers, trailers, service trucks, bobtails, tractor-trailers, or transportation fleet equipment.
• Experience in fuel transportation, logistics, emergency response, oilfield, aviation fueling, disaster response, or similar fleet-based operations.
• CDL preferred but not required.
• DOT inspection knowledge preferred.
• Welding or fabrication experience is a plus.
• ASE, diesel technology, or other mechanic-related certification preferred.
• Experience with diagnostic software and electronic troubleshooting preferred.
• Experience with fleet maintenance tracking systems is a plus.

Responsibilities

• Inspect, diagnose, troubleshoot, repair, and maintain diesel engines, trucks, trailers, tankers, service vehicles, and related fleet equipment.
• Perform preventative maintenance, including oil changes, filter replacements, fluid checks, lubrication, brake inspections, tire checks, and general service work.
• Diagnose and repair mechanical, hydraulic, electrical, fuel, cooling, brake, suspension, and engine-related systems.
• Service and repair fleet equipment used in fuel hauling, transportation, emergency fuel response, potable water operations, aviation fueling, and truck center support.
• Conduct routine inspections to identify safety concerns, mechanical issues, and needed repairs before equipment is placed back into service.
• Respond to equipment breakdowns and assist with field repairs as needed to reduce downtime and support active operations.
• Use diagnostic tools, service manuals, schematics, and repair procedures to identify problems and complete repairs correctly.
• Maintain accurate records of inspections, maintenance, repairs, parts usage, and service history.
• Communicate equipment status, repair needs, and maintenance priorities with supervisors, dispatch, fleet leadership, drivers, and operations personnel.
• Ensure trucks, trailers, tankers, and related equipment meet company, safety, DOT, and regulatory standards.
• Keep the shop, work area, tools, and service equipment clean, organized, and safe.
• Assist with parts inventory, parts requests, and tracking of supplies as needed.
• Follow all LEMOINE and Macro safety policies, procedures, and work practices.
• Support emergency response operations when required, including storm/disaster-related fleet readiness and repair support.
• Perform additional duties as assigned to support LEMOINE and Macro fleet, transportation, and operational needs.