WesTrac | Mt Thorley Rebuilds Workshop (Hunter Valley)

Join our Mt Thorley Rebuilds Workshop and be part of a highly skilled, multi‑trade team delivering industry‑leading CAT machine rebuilds to world‑class standards. As part of a diverse, multi‑trade workshop team—Plant Mechanics, Heavy Vehicle Mechanics, Diesel Mechanics, and Auto Electricians—you’ll support the full rebuild lifecycle from teardown to commissioning, ensuring every machine is delivered safely, reliably, and ready for peak performance.

• $60/hr+ (incl. location/shift allowances) + OT rates, paid fortnightly Lifestyle roster:
• Mix of day & night 12.5‑hr shifts, 5 weeks annual leave – work only half the year!
• Workshop‑based OEM rebuilds on CAT fleets, modern facility, stable and experienced team

What you’ll do

Plant Mechanics

• Strip, rebuild and reassemble CAT machines and major mechanical components
• Conduct inspections, diagnostics and quality checks throughout the rebuild lifecycle
• Carry out scheduled maintenance and mechanical adjustments to meet specifications
• Maintain a clean, safe and well‑organised workshop
• Collaborate closely with Supervisors and cross‑trade colleagues to deliver quality rebuilds on time

Auto Electricians

• Diagnose, repair and rebuild electrical, electronic and control systems on CAT equipment
• Install, test and commission wiring harnesses, sensors, modules and telemetry systems
• Perform electrical fault finding and verification during rebuild and commissioning stages

• Maintain a clean, safe and well‑organised workshop
• Collaborate closely with Supervisors and cross‑trade colleagues to deliver quality rebuilds on time

What you’ll bring

• Australian‑recognised mechanical trade and/or auto electrical (e.g., Cert III HD Plant)
• Proven rebuilds/major component overhaul/assembly experience
• CAT or comparable surface mining gear; strong diagnostics/fault‑finding
• Proactive, safety‑first mindset; unrestricted driver’s licence

Why Join WesTrac?

• Hourly Rates FROM $60 P/HR
• Overtime FROM $89 P/HR
• 12 weeks paid parental leave + income protection
• Strong job security with long‑term career pathways
• Flexitime, RDOs & purchased leave (up to 5 weeks p.a.)
• Training & career progression via the WesTrac Institute
• Fitness Passport (family included) + health & wellbeing support
• 600+ retail, travel & lifestyle discounts + CAT tool discounts
• Refer a mate & earn up to $3,000
• Free parking, onsite café & extra perks at select sites
• Relocation assistance for eligible candidates

Ready to Make Your Move? 

Apply now with your resume or contact our Recruitment Team on 1300 797 028. Please reference vacancy number #5228.

Successful applicants will be required to complete a satisfactory National Criminal History Check and a Pre-Employment Medical as part of the Recruitment Process. 

At WesTrac, our primary focus is our people. As we look to the future, we’re focused on harnessing the best talent and providing them with the support they need to achieve success. WesTrac is a member of the Diversity Council of Australia and recognise the value of and strongly support the principles of equal employment opportunities in the workplace and are committed to continue to build our workplace culture.