Master Diagnostic Mechanic & Tech Mentor

Butler County Regional Transit Authority; Hamilton (OH); On-site; USD 50,000 - 61,000; Full time

Benefits offered by this job

OPERS retirement contribution

Medical/dental/vision/Life insurance

Paid Time Off 29+ days/year

Uniform provided

Team-oriented culture

Job summary

Butler County RTA is seeking a master-level Diagnostician / Mechanic Trainer to diagnose complex heavy-duty issues, define exact fixes, and elevate the skills of every technician in the shop. If you’ve spent years under buses and trucks, particularly with Cummins powertrains, you’ll fit right in.

This is a teaching, not a production role. You’ll road-test, verify repairs, mentor staff, and help pre-stage parts to cut downtime while keeping safety and compliance at the forefront.

Qualifications

• Serious time in the bus or truck world, heavy-duty diesel is your home turf.
• You know Cummins powertrains cold: engines, aftertreatment, and emissions.
• Motorcoach experience is a plus and moves you up the stack.
• You’d rather solve the puzzle than just turn the bolt, and you love showing others how you did it.
• Fluent with diagnostic tools and software (Cummins INSITE, J1939/J1587, etc.).
• CDL with appropriate endorsements, or ability to obtain one; ASE and OEM/Cummins certifications are a big plus.

Responsibilities

• Diagnose faults nobody else can crack, from powertrain to electrical and hydraulic gremlins.
• Scope work at the outset: identify root causes, parts, and exact service tasks for ready-to-run jobs.
• Create clean, executable work orders from diagnosis in collaboration with writers and technicians.
• Teach and mentor the team, improving diagnostic skills across the shop.
• Road-test and verify repairs, ensuring vehicles are safe to return to service.
• Help cut downtime by pre-staging parts and spotting recurring failures.

Skills

Heavy-duty diesel

Cummins powertrains

Diagnostic expertise

Mentoring/teaching

CDL with endorsements

ASE and OEM/Cummins certifications

Tools

Cummins INSITE

J1939/J1587

Job description

Butler County RTA is seeking a master-level Diagnostician / Mechanic Trainer to diagnose complex heavy-duty issues, define exact fixes, and elevate the skills of every technician in the shop. If you’ve spent years under buses and trucks, particularly with Cummins powertrains, you’ll fit right in.

This is a teaching, not a production role. You’ll road-test, verify repairs, mentor staff, and help pre-stage parts to cut downtime while keeping safety and compliance at the forefront.