Superior Diesel Maintenance Pty Ltd is seeking an experienced Heavy Mining Equipment Technician to join our team in Muswellbrook, NSW. This is a full-time position based on-site with a full time work vehicle provided, where you will play a critical role in maintaining and servicing heavy mining equipment to ensure optimal operational performance and safety standards. Your expertise will be essential in supporting our clients' mining operations and contributing to the reliability and efficiency of their fleet.

What you'll be doing

Performing routine maintenance and scheduled servicing on heavy mining equipment including excavators, haul trucks, dozers, and drilling equipment

Diagnosing mechanical and hydraulic faults using diagnostic tools and equipment

Conducting repairs to engines, transmissions, hydraulic systems, and electrical components

Inspecting equipment for wear, damage and safety compliance

Maintaining detailed maintenance records and service logs

Liaising with mining site supervisors and operators to understand equipment performance issues

Performing preventative maintenance to minimise downtime and extend equipment lifespan

Ensuring all work is carried out in accordance with health and safety regulations and company procedures

Assisting in the training and mentoring of junior technicians where applicable

What we’re looking for

Trade qualifications as a Heavy Diesel Technician

Minimum 3-5 years' experience working on heavy mining equipment in an operational mining workplace

Strong knowledge of diesel engines, hydraulic systems, transmission systems and electrical components

Proficiency in using diagnostic equipment and mechanical tools





Sound understanding of health and safety principles and mining industry regulations

Excellent problem-solving skills and attention to detail

Strong communication skills and ability to work effectively both independently and as part of a team

Physical fitness to perform manual tasks and work in varying weather conditions

Demonstrated reliability and commitment to completing work to high standards

Well presented and tidy appearance

What we offer

We are committed to providing a supportive and professional work environment. Our benefits include competitive remuneration reflecting your experience and qualifications, opportunities for ongoing professional development and skills training, a focus on workplace health and safety, and a collaborative team culture where your expertise is valued. We also provide flexibility where possible to support work-life balance, and we encourage open communication about any support or adjustments you may require. You will be provided with one of our very well equipped field service vehicles to attend whichever site is required.

About us

Superior Diesel Maintenance Pty Ltd is a trusted provider of diesel maintenance and heavy equipment servicing solutions for the mining and industrial sectors across NSW. We are committed to delivering reliable, professional and safety-focused maintenance services that keep our clients' operations running smoothly. With a reputation built on technical expertise, customer service and a dedicated team of skilled technicians, we pride ourselves on being a preferred maintenance partner for mining companies across the region. We value integrity, safety, continuous improvement and the development of our talented workforce.

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📌 Heavy mining equipment technician (Muswellbrook Shire Council)
🏢 Superior Diesel Maintenance
📍 Muswellbrook Shire Council