Lead Heavy-Duty Diesel Technician — Diagnostics Pro

W.W.Williams Company; Wakefield (MA); On-site; USD 58,000 - 85,000; 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 is seeking two to three Senior Diesel Technicians to own the toughest diagnostic work on Detroit, Cummins and Allison-powered trucks. This day-shift, on-site role requires top-tier expertise and a drive to mentor junior technicians while delivering first-time repairs.

We offer factory training, paid overtime, and a clear path to senior tech ranks within our network across the East. Enjoy a comprehensive benefits package and competitive wages with a strong emphasis on

Qualifications

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

Responsibilities

• Own the toughest diagnostic jobs on fleet trucks.
• Diagnose, repair, road test and document results.
• Be the go-to tech to help junior techs get unstuck.

Skills

7+ years journeyman / Tech 1 on Class

Education

ASE Medium/Heavy Truck certified (full T2–T8 series)

OEM certifications: Detroit, Allison and Cummins

Tools

DiagnosticLink

Cummins INSITE

Allison DOC

Job description

W.W. Williams Company is seeking two to three Senior Diesel Technicians to own the toughest diagnostic work on Detroit, Cummins and Allison-powered trucks. This day-shift, on-site role requires top-tier expertise and a drive to mentor junior technicians while delivering first-time repairs.

We offer factory training, paid overtime, and a clear path to senior tech ranks within our network across the East. Enjoy a comprehensive benefits package and competitive wages with a strong emphasis on