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 drivers 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

• MondayFriday 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