Senior Diesel Diagnostic Lead – On‑Site, Top Pay

W.W.Williams; Greer (SC); On-site; USD 75,000 - 95,000; Full time

Benefits offered by this job

Paid holidays

Paid time off

Referral bonus

Medical insurance

Dental insurance

Vision insurance

401k with company match

Company-paid training

Growth opportunities

Job summary

W.W. Williams, a leading diesel service provider, seeks two to three Senior Diesel Technicians in Greer, SC. You will own the most challenging diagnostics, diagnose and repair trucks to road test standards, and mentor junior technicians. This full-time, on-site role offers top-tier pay, overtime, and access to OEM training.

Join us to work on Detroit, Cummins and Allison-powered trucks with opportunities for leadership within a regional network. CDL-A is a plus and a strong toolset is expected.

Qualifications

• 7+ years as 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.

Skills

Journeyman experience

ASE Heavy Truck

OEM certifications

Diagnostics tools

Truck repair

CDL-A

Tools

DiagnosticLink

Cummins INSITE

Allison DOC

Job description

W.W. Williams, a leading diesel service provider, seeks two to three Senior Diesel Technicians in Greer, SC. You will own the most challenging diagnostics, diagnose and repair trucks to road test standards, and mentor junior technicians. This full-time, on-site role offers top-tier pay, overtime, and access to OEM training.

Join us to work on Detroit, Cummins and Allison-powered trucks with opportunities for leadership within a regional network. CDL-A is a plus and a strong toolset is expected.