Senior Diesel Technician - Heavy-Duty Trucks (1st Shift)

JoB Training & Coaching; Sheboygan (WI); On-site; USD 56,000 - 76,000; Full time

Benefits offered by this job

Tool allowance

Career advancement opportunities

Training and OEM programs

Long-term employment stability

Job summary

JoB Training & Coaching in Sheboygan, WI seeks an experienced Diesel Technician for a full-time, first-shift role. You will diagnose, maintain, and repair diesel engines on heavy-duty trucks, using computerized equipment and following safety practices.

The position emphasizes ongoing technical training, career growth, tool allowances, and a stable Monday–Friday schedule with no nights or weekend work. CDL readiness and ASE/EPA certifications are preferred to enhance expertise.

Qualifications

• High School Diploma or equivalent.
• 5+ years of diesel technician or diesel mechanic experience.
• Experience with heavy-duty trucks and commercial vehicles.
• Strong diagnostic and troubleshooting abilities.
• Experience diagnosing and repairing diesel electrical systems.
• Experience with brake systems (air and hydraulic), steering, driveline, transmissions, and diesel engines.
• Ability to operate computerized diagnostic equipment.
• Must possess personal tools required to perform job duties.
• Valid driver's license with a clean driving record and ability to obtain CDL.
• ASE Certifications and EPA 608/609 preferred.

Responsibilities

• Perform diagnostics, maintenance, and repairs on diesel engines and heavy-duty trucks.
• Diagnose vehicle issues based on customer concerns and inspection findings.
• Troubleshoot and repair electrical, suspension, steering, driveline, transmission, and brake systems.
• Perform engine repairs and component replacements.
• Repair and replace major components including injectors, pistons, liners, camshafts, cylinder heads, bearings, clutches, transmissions, differentials, and related systems.
• Utilize computerized diagnostic equipment to identify and resolve mechanical and electrical issues.
• Complete repair orders and service documentation accurately.
• Conduct road tests as needed to verify repairs.
• Follow all workplace safety procedures and industry best practices.
• Maintain a clean and organized work environment.
• Participate in ongoing technical training and professional development.

Skills

Diesel diagnostics

Heavy-duty trucks

Troubleshooting

Electrical systems

Computerized diagnostics

Customer/diagnostic communication

Education

High School Diploma

Tools

Personal tools

CDL readiness

Job description

Location: Sheboygan, WI

Schedule: Full-Time | First Shift | Monday-Friday

About the Role

We are seeking an experienced Diesel Technician to join a growing service team supporting heavy-duty trucks and commercial vehicles. This is an excellent opportunity for a skilled technician looking to work in a professional environment that values technical expertise, continuous training, and career growth.

This position offers a consistent first-shift schedule with no nights or weekends, allowing for a strong work-life balance while working on a wide variety of diesel-powered vehicles and equipment.

Responsibilities

• Perform diagnostics, maintenance, and repairs on diesel engines and heavy-duty trucks.
• Diagnose vehicle issues based on customer concerns and inspection findings.
• Troubleshoot and repair electrical, suspension, steering, driveline, transmission, and brake systems.
• Perform engine repairs and component replacements.
• Repair and replace major components including injectors, pistons, liners, camshafts, cylinder heads, bearings, clutches, transmissions, differentials, and related systems.
• Utilize computerized diagnostic equipment to identify and resolve mechanical and electrical issues.
• Complete repair orders and service documentation accurately.
• Conduct road tests as needed to verify repairs.
• Follow all workplace safety procedures and industry best practices.
• Maintain a clean and organized work environment.
• Participate in ongoing technical training and professional development.

Required Qualifications

• High School Diploma or equivalent.
• Minimum 5 years of diesel technician or diesel mechanic experience.
• Experience working on heavy-duty trucks and commercial vehicles.
• Strong diagnostic and troubleshooting abilities.
• Experience diagnosing and repairing diesel electrical systems.
• Experience with:
  • Brake systems (air and hydraulic)
  • Steering systems
  • Driveline components
  • Transmissions
  • Diesel engines
• Ability to operate computerized diagnostic equipment.
• Must possess personal tools required to perform job duties.
• Valid driver's license with a clean driving record.
• Ability to obtain a Commercial Driver's License (CDL).

Preferred Qualifications

• ASE Certifications.
• EPA 608/609 Certifications.
• OEM manufacturer training.
• Experience diagnosing and rebuilding major components including engines, transmissions, and differentials.
• Experience with Cummins engines.
• Experience servicing medium- and heavy-duty truck brands.
• Vocational or technical training in diesel technology.

What You'll Find Here

• Stable Monday-Friday schedule
• No nights or weekend work
• Supportive team environment
• Opportunity to mentor developing technicians
• Ongoing technical and OEM training opportunities
• Tool allowance programs
• Career advancement opportunities
• Long-term employment stability

Physical Requirements

• Ability to lift and move heavy components and tools.
• Ability to stand, bend, kneel, and work in a shop environment for extended periods.
• Ability to safely operate shop equipment and vehicles.

Applicants must be legally authorized to work in the United States. Sponsorship is not available for this position.