Heavy Diesel Component Rebuild Technician

Posted: 26/10/2026

Closing Date: 26/11/2026

Job Type: Permanent - Full Time

Job Category: Maintenance

About Us

As an ASX-listed company, MLG Oz is a contractor of choice, employing more than 1,400 people across over 30 operational sites. We deliver a comprehensive range of services, including:

Aggregate and sand supply

Bulk haulage and integrated site services

Crushing and screening

Export logistics

MLG Oz is guided by strong core values and is committed to fostering a diverse and inclusive workplace. We recognise that inclusion drives engagement, builds trust, encourages fresh perspectives, and supports innovation, ultimately enhancing our overall performance. Our people are our greatest asset, and through their collective efforts and contributions, we are able to achieve our objectives while maintaining an uncompromising commitment to the health and safety of our workforce, the environment, and the communities in which we operate.

Job Description

BUILD IT RIGHT. REBUILD IT BETTER.

Bring your expertise. Help build something bigger.

MLG Oz is expanding its in-house Component Rebuild Centre (CRC) in Kalgoorlie and is looking for an experienced Heavy Diesel Component Rebuild Technician to join the team.

This is your chance to put your technical skills to work on critical heavy mobile equipment components while helping build a reliable, cost-effective internal rebuild capability across our operations.

If you take pride in precision workmanship, understand the importance of quality and want to make a real impact, we want to hear from you.

WHY JOIN MLG?

- Superannuation paid on ALL hours worked - full-time employees only




- Flights covered from Australian capital cities
- Full PPE supplied - shirts, pants, boots, jacket and prescription safety glasses
- $6,000+ referral bonus - bring your crew
- Salary sacrifice and novated leasing options
- Long-term stability with a contractor of choice

At MLG Oz, our people are our greatest asset. Everything we do is guided by our core values of safety, teamwork and respect for our communities and the environment.

Join a team that values your skills, supports your contribution and is focused on building for the future.

WHAT YOU’LL BE DOING

- Dismantle, inspect, assess, repair and rebuild mechanical, hydraulic and drivetrain components used in heavy mobile equipment.
- Conduct detailed condition assessments, dimensional measurements and wear analysis to identify defects and failure mechanisms.
- Rebuild components to OEM specifications, approved repair procedures and quality standards.
- Use precision measuring equipment to verify clearances, fits, tolerances and component serviceability.
- Identify components suitable for reuse, repair or replacement.
- Complete accurate inspection reports, measurement records and rebuild documentation.
- Investigate recurring failures and contribute to root-cause analysis and corrective actions.




- Help develop and improve CRC workflow, tooling, inspection standards and quality control processes.
- Work with workshop supervision and maintenance teams to deliver safe, efficient component turnaround times.

WHAT YOU’LL BRING

- Trade qualification as a Heavy Diesel Mechanic, Diesel Fitter or equivalent mechanical trade.
- Proven experience dismantling, inspecting, repairing and rebuilding heavy mobile equipment components.
- Strong mechanical diagnostic, fault-finding and problem-solving skills.
- Ability to interpret OEM specifications, technical drawings and workshop manuals.
- Competence using precision measuring equipment, including micrometers, dial indicators, bore gauges and vernier callipers.
- Sound understanding of mechanical tolerances, bearing fits, clearances and assembly practices.
- A commitment to safe work practices, quality workmanship and accurate documentation.
- The ability to work independently, manage priorities and take ownership of your work.

EXPERIENCE THAT WILL SET YOU APART

The following experience will be highly regarded:

- Rebuilding transmissions, torque converters, differentials, final drives, transfer cases and hydraulic pumps.
- Working in an OEM environment, specialist component rebuild facility or mining equipment maintenance operation.
- Applied Failure Analysis (AFA), ideally Caterpillar AFA, including identifying failure modes and determining root causes.
- Experience with Caterpillar, Cummins, Allison, Dana, ZF or similar heavy equipment systems.
- Component testing, workshop quality assurance and developing rebuild procedures or inspecti

📌 Heavy Diesel Component Rebuild Technician (Boulder)
🏢 MLG Oz
📍 Boulder