Heavy Duty Diesel Technician Truck Mechanic

Overview A well-established, family-style heavy-duty truck service shop with over 40 years in the Wisconsin and Illinois transportation industry is seeking an experienced Diesel Technician. This is a small, highly skilled team environment where technicians work independently, are trusted with complex repairs, and are supported through ongoing OEM-level training. We are looking for a seasoned technician with strong diagnostic ability and hands-on experience in full-scope diesel truck repair. Key Responsibilities Diagnose and repair heavy-duty diesel trucks (all-makes) Perform repairs on engines, transmissions, differentials, driveline, steering, suspension, and air/hydraulic brake systems Complete major engine repairs, including injectors, pistons, liners, heads, camshafts, bearings, and related components Use diagnostic tools/software to troubleshoot mechanical and electrical systems Inspect vehicles and determine required safety or additional repairs Perform road tests to verify repair quality and performance Accurately document repair orders and service recommendations Maintain compliance with OEM, dealership, and safety standards Work efficiently while ensuring high-quality workmanship Required Qualifications 5+ years of hands-on experience as a Diesel Technician / Heavy-Duty Truck Mechanic Strong diagnostic and electrical troubleshooting skills using scan tools/computer systems Proven experience with engines, transmissions, differentials, driveline, brakes, and suspension systems Ability to complete full repair cycles independently (diagnosis through completion) Must own a full professional toolset Valid driver's license with a clean driving record Ability to obtain a CDL (if required for duties) High school diploma or equivalent (technical training preferred) Preferred Qualifications ASE certifications and/or OEM training (International, Cummins, etc.)

EPA 608/609

certification Experience in dealership or fleet maintenance environments Strong tenure in previous diesel/heavy-duty technician roles Experience mentoring or supporting junior technicians Work Environment Small shop (low micromanagement, tight-knit team) Lead-level technician responsibilities Independent work with full accountability for repair quality Ongoing OEM-certified training and skill development Stable, long-term employment environment Schedule & Benefits Monday-Friday schedule (no nights, no weekends) First-shift daytime hours Tool and work boot allowance Continuous internal and OEM training programs Supportive, family-oriented shop culture