As a Diesel Technician / Mechanic at NFI, you will be responsible for troubleshooting, diagnosing, and repairing electrical and mechanical issues related to tractors and trailers. This role involves using standard testing procedures and computer diagnostic equipment such as JPRO and OEM Diagnostic Software. You will also perform preventive maintenance on our fleet and conduct DOT inspections in accordance with FMSCA guidelines. The position requires physical capability to lift and/or pull 75 lbs or more, stand or lie for extended periods, and have flexible movement to reach equipment.