Road Train Diesel Fitters QCoal

Make your mark with Thiess

Every day all around the world Thiess supports and celebrates our people. We recognise talent and reward transparency. We champion diversity and embrace change.

Join us. Hone your skills and develop new ones. take on big challenges and grow through mentorship collaboration and empowerment.

Thiess is the place to make things happen.

About the role

We are seeking experienced Road Train Diesel Fitterslooking for a permanent opportunity to join our dynamic maintenance team in Collinsville.

Our teams deliver mining excellence with uncompromising safety and environmental standards and we are looking forward to continuing our long-term relationships across our mine sites.

As a Road Train Diesel Fitter you will be responsible for maintaining diagnosing and repairing modern on-highway prime movers and road train trailer configurations. You will work both in workshop and field environments to ensure fleet availability and compliance with NHVR and site requirements.

As a Road Train Diesel Fitter you will report through to the Maintenance Supervisor where your role will be:

• Advanced diagnostics and repair of modern diesel engines (Cummins CAT Detroit etc.)
• Maintenance of:
• Transmissions (manual AMT Allison)
• Driveline and differential systems
• Air brake systems ABS/EBS
• Inspection and repair of multi-combination trailers (A-Double B-Double Triple)
• Suspension systems (airbag & mechanical)
• Hydraulic tipping systems
• Electrical and CAN bus fault finding
• Conduct roadworthy and compliance inspections
• Attend breakdowns and perform safe field repairs

About the you

To be successful in this role you are required to have:

• Trade qualified Diesel Fitter / Heavy Vehicle Mechanic (Cert III)
• Minimum 5 years heavy vehicle experience
• Proven experience with road train configurations
• Strong diagnostic capability (OEM software experience desirable)
• Solid understanding of NHVR compliance and Chain of Responsibility
• Ability to work autonomously and safely

Desirable

• HR or MC licence
• Brake inspection accreditation
• Welding/fabrication capability
• A genuine interest in building a career with Thiess

What Thiess can do for you

• Permanent fulltime positions
• Competitive rate together with retention/attendance bonuses (conditions apply)
• Even time lifestyle 7/7 Day shift only roster 12hr shifts
• BIBO provided from Rockhampton or Townsville
• Camp accommodation inclusive of meals provided
• Thiess commitment to training & development
• Range of corporate discounts including health insurance (Medibank) travel & retail products
• Stable fleet with structured maintenance programs
• Supportive leadership team
• The opportunity to influence reliability improvements

About us

Thiess works with clients in Australia Asia and the Americas in the dynamic field of open-cut and underground mining.

The pioneering spirit of our founders the legendary Thiess brothers is our legacy and inspires our vision to harness the power of people and technology to drive sustainable change.

At Thiess you will have the opportunity to play a part in the global energy transition. We are growing our commodities portfolio to include metals and minerals critical to the energy transition and developing services to enable sustainable mining.

Were creating a culture of curiosity knowledge-sharing and continuous learning supporting our people to contribute to Thiess success and continued growth in sustainable mining.

Well support you to hone your skills and develop new ones take on challenges and grow through mentorship collaboration and empowerment. We offer our people ongoing technical training and development opportunities so they can reach their full potential. We also invest in the workforce of the future with a range of programs for people starting their careers.

We recognise the value of an inclusive and diverse workplace through our vision of everyone matters always. Were focused on creating an inclusive environment to enable our people to bring their best self to work because they feel safe included and empowered.

Learn more you require assistance applying for this opportunity please contact us at

Thiess follows a Pre-Employment Process for all successful applicants which includes two employment references a National Police Check and a medical assessment. These checks are essential to your application and your recruiter will support you through the process.

How to apply

This role is an opportunity to take the next step in your career. With our culture of recognition development and a stimulating and satisfying work environment there is no better time to join Thiess.

To apply for this role please click the Apply button or the link below.

Thiess follows a Pre-Employment Process for all successful applicants which includes two employment references a National Police Check and a medical assessment. These checks are essential to your application and your recruiter will support you through the process.

How to apply

Applications close

26 Apr 2026 E. Australia Standard Time