Senior Diesel Technician
About The Position
W.W. Williams is hiring two to three Senior Diesel Technicians (Journeyman / Tech 1) for full-time, day-shift, on-site roles. The Senior Diesel Technician handles the shop’s most challenging diagnostic work, completes repairs accurately the first time, and helps junior technicians develop. The role focuses on fleet customers’ Detroit-, Cummins-, and Allison-powered Class 6–8 trucks, including diagnosis and repair of engines, aftertreatment systems, electrical systems, and transmissions, followed by road testing and documentation. Senior technicians receive top-of-scale pay from day one, overtime, paid OEM training, and a path to shop lead and the company’s top technician tier.
Requirements
- At least 7 years of experience as a journeyman / Tech 1 working on Class 6–8 trucks.
- ASE Medium/Heavy Truck certification covering the full T2–T8 series.
- OEM certification in Detroit (DTNA), Allison, and/or Cummins.
- Strong electronic diagnostic skills, including DiagnosticLink, Cummins INSITE, Allison DOC, and laptop-based troubleshooting.
- Experience diagnosing and repairing engines, aftertreatment systems (DPF/SCR), electrical systems, and transmissions, through road testing.
- Professional tool set.
- Valid driver’s license.
Nice To Haves
- CDL-A.
Responsibilities
- Take ownership of the shop’s most challenging diagnostic jobs on fleet customers’ Detroit-, Cummins-, and Allison-powered trucks.
- Diagnose and repair issues involving engines, aftertreatment systems (DPF/SCR), electrical systems, and transmissions.
- Road-test completed repairs and document the work.
- Help junior technicians resolve technical issues and develop their skills.
Benefits
- Top-of-scale pay from day one.
- Overtime.
- Paid Detroit, Allison, and Cummins OEM training, scheduled during the first quarter.
- Clear path to shop lead and the top technician tier.
- 8 paid holidays and 1 paid wellness day.
- Paid time off.
- Employee referral bonus program.
- Medical, dental, and vision insurance.
- 401(k) with company match.
- Company-paid training.
- Growth and leadership opportunities.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
