Heavy Diesel Mechanic - Field Service

Build Your Future with WesTrac

At WesTrac, we don’t just service equipment - we power some of Australia’s largest mining, construction, and infrastructure operations. As one of the world’s leading authorised Cat® dealers, we invest in our people, technology, and future to keep critical industries moving. 

We are committed to delivering exceptional customer service and setting the benchmark for quality and reliability. We consistently exceed expectations, and every interaction reflects our values, high standards, and our pride in supporting our customers’ success.   

Due to continued growth, we are hiring multiple Heavy Diesel Mechanics – Field Service across regional Western Australia. If you are looking for variety, autonomy, strong earning potential, and long-term career progression, this is your opportunity. 

About The Role 

• Working across mine sites, ports, and regional operations, you will:
• Perform field-based diagnostics, repairs, and maintenance on Caterpillar equipment
• Troubleshoot mechanical, hydraulic, and electrical faults
• Work independently in the field while supported by a high-performing team
• Service fleet including haul trucks, loaders, graders, dozers & ancillary equipment
• Deliver safe, high-quality outcomes and exceptional customer service 

What We Are Looking for

• Trade qualification: Plant Mechanic / Heavy Diesel / Auto Electrical
• Proven field service experience (Cat® highly regarded)
• Strong fault-finding and diagnostic capability 
• Valid driver’s licence (minimum LR, higher classes advantageous) 
• Commitment to safety, accountability, and teamwork
• HRWL tickets (Forklift, Dogging, Rigging) – desirable 

What We Offer

We offer a variety of FIFO and residential rosters depending on location:  
Please note: Hours do not include an unpaid 30-minute break 

• 14/7 | 14/14 | 12/9 | 9/5
• 8/6 | 10/4 | 5/2 (residential / fifo / dido) 
• 10–12-hour shifts  

Why Join WesTrac? 

Financial Rewards 

• Competitive remuneration + overtime opportunities 
• Paid parental leave & secondary carers leave 
• Salary sacrificing & novated leasing 
• Income protection insurance 
• Discounts with 600+ retailers (Coles, Virgin, HOYTS, Crown & more)

Health & Wellbeing 

• BUPA health insurance discounts
• Fitness Passport (access gyms nationwide) 
• Employee Assistance Program for you & your family

Career Growth 

• Industry-leading training via WesTrac Institute
• Clear career pathways across WA & national network
• Recognition programs for performance & milestones  

Extra Benefits 

• Referral bonus up to $5,000 
• Defence Reservist & Emergency Services leave 
• Employee Share Purchase Plan 
  

Our Commitment 

With over 4,500 employees, WesTrac is proud to reflect the diverse communities we serve. We are committed to creating a workplace where people feel safe, included and empowered to be their authentic selves. We encourage applications from First Nations peoples, LGBTQIA+ individuals, and candidates from culturally diverse backgrounds. WesTrac is a proud WORK180 endorsed employer.

Ready to Apply?

Join a business where your skills are valued, your safety matters, and your career can go the distance. 

Apply now and power your future with WesTrac.