Senior Diesel Technician: Diagnostic Expert + OEM Training

W.W.Williams Company; Detroit (MI); On-site; USD 55,000 - 72,000; Full time

Benefits offered by this job

8 Paid Holidays & 1 Paid Wellness Day

Paid Time Off

Employee Referral Bonus Program

401k with a Company Match

Company Paid Training

Job summary

W.W. Williams Company seeks two to three Senior Diesel Technicians to tackle the most challenging diagnostic work on our fleet trucks. You will own the repair process from diagnosis to road test and mentor junior technicians in a fast-paced, on-site shop.

This full-time, day-shift role emphasizes expertise, training, and leadership within a nationwide service network. A CDL-A is a plus, and OEM certifications are highly valued.

Qualifications

• 7+ years as a journeyman / Tech 1 on Class 6–8 trucks.
• Ase Medium/Heavy Truck certified (full T2–T8 series).
• OEM certifications: Detroit (DTNA), Allison and/or Cummins.
• Strong electronic diagnostics: DiagnosticLink, Cummins INSITE, Allison DOC, laptop-based troubleshooting.
• Engine, aftertreatment (DPF/SCR), electrical and transmission repair, from diagnosis to road test.
• Your own professional tool set and a valid driver’s license (CDL-A a plus).

Responsibilities

• Own the toughest diagnostic jobs in the shop on fleet customers’ Detroit, Cummins and Allison-powered trucks.
• Get it right the first time: diagnose, repair, road test and document it.
• Be the go-to tech who helps junior techs get unstuck.
• A phone call within 48 hours of applying.
• A shop visit and interview within 5 days.
• An offer within 48 hours of your interview.

Skills

Journeyman/Tech1

Diesel trucks 6–8

ASE certs

OEM certs

Diagnostics tools

Tool set

CDL-A

Tools

DiagnosticLink

Cummins INSITE

Allison DOC

Job description

W.W. Williams Company seeks two to three Senior Diesel Technicians to tackle the most challenging diagnostic work on our fleet trucks. You will own the repair process from diagnosis to road test and mentor junior technicians in a fast-paced, on-site shop.

This full-time, day-shift role emphasizes expertise, training, and leadership within a nationwide service network. A CDL-A is a plus, and OEM certifications are highly valued.