National Group - You're not just a number.
Take the next step in your mining career with an industry leader.
We're seeking a skilled and motivated Maintenance Supervisor to join our team at Prominent Hill mine, working on one of the best fleets in the business across a dynamic surface mining environment.
This is a great opportunity to lead from the front, drive operational excellence, and be part of a company where people matter.
About Us
National Group is one of Australia's leading mining services companies.
For three decades, we've been a key supplier of heavy-earthmoving equipment and end-to-end services to some of the world's largest mining companies.
Through our National Plant & Equipment division, our fleet operates across Australia's biggest mine sites, powering the production of iron ore, coal, gold, and more.
Roster and Conditions
7 on 7 off rotating day / night roster
FIFO form Adelaide or Port Augusta – flights included
Accommodation and meals provided
Great team culture and long-term opportunities within a growing business
The Role
You'll be responsible for:
Supervise and coordinate a team of Heavy Diesel Fitters, Servicepersons,



Mechanics and Tyre Fitters
Schedule, allocate, and monitor maintenance tasks
Drive safety and compliance through effective leadership and field presence
Lead preventative maintenance and scheduled servicing
Support planning, breakdown response, and continuous improvement initiatives
Accurate recording and reviewing of maintenance data via AMT
Maintain detailed maintenance records and ensure reporting accuracy
What You'll Need
Trade-qualified in relevant mechanical field (Diesel Fitter / Plant Mechanic or similar)
Proven experience as a Maintenance Supervisor in an open-cut mining setting
Current drivers licence
Strong working knowledge of CAT & Komatsu surface mobile equipment
Ability to lead a team, communicate professionally, and liaise confidently with clients and management
Ability to wear a respirator uninhibited (no facial hair)
What We Offer
Competitive salary package
Work with a 100% Australian-owned company that values people, not just numbers
Big-company capabilities, small-company feel

📌 Maintenance Supervisor | Prominent Hill Mine (South Australia)
🏢 National Group
📍 South Australia