Position Title: Site Service Supervisor
Job Type: Full Time Permanent
Location: MMD WA Facility (Malaga)
Reporting To: Service and After Sales Support Manager

About the Business

Mining Machinery Developments (MMD) designs, manufactures and supports mineral sizing solutions for mining, quarrying and recycling customers worldwide.

Our Perth team combines workshop capability, specialist technical knowledge and site-service delivery to support customers across Western Australia and the Northern Territory.

About the Role

We are seeking a hands-on, trade-qualified Mechanical Site Service Supervisor to lead maintenance, shutdown and service activities on MMD mineral sizers and its associated equipment across Western Australia and the Northern Territory. This is a permanent Perth-based role, combining site leadership with workshop coordination and shutdown preparation whilst at our Malaga facility.

You will lead safe, well-planned work on customer sites, coordinate crews and resources, communicate directly with clients, and help prepare future shutdowns when working from the workshop.

Employment & Earnings

Base salary is $125,000-$135,000 plus superannuation, depending on experience and relevant tickets.

During shutdown assignments, you are paid for a minimum of 12 hours per day at your ordinary hourly rate. Based on a minimum expectation of approximately 65 site days per year, expected annual earnings are approximately $144,000-$155,000. Actual earnings will vary with site-work requirements.

This is not a permanent FIFO roster. You will be based at our Malaga workshop between shutdowns and can expect a minimum of approximately 65 days per year at mine sites, site requirements may be higher. Travel, accommodation and site arrangements are provided for site assignments.

Key Responsibilities

Site Supervision & Safety

- Champion a safety-first culture to promote an incident and injury-free workplace.
- Lead pre-starts and ensure adherence to safety procedures and policies.




- Maintain site documentation including shift logs, handovers and hazard reports.
- Identify and resolve safety or operational concerns proactively.

Maintenance Coordination & Oversight

- Oversee scheduled maintenance, shutdowns and ad hoc repair works on MMD equipment.
- Manage day-to-day work activities and crew performance.
- Monitor progress and report manpower usage, shortfalls or overruns.
- Maintain the condition, inventory, and security of site tool containers.

People Leadership & Communication

- Mentor and develop team members to foster a collaborative and skilled workforce.
- Liaise effectively with clients, contractors, and internal stakeholders.
- Represent MMD’s values and technical capability in front of our customers.
- Support workshop overhaul tasks in Malaga during off-site periods as needed.

Key Requirements

Qualifications, Experience & Travel

- Australian trade qualification as a Mechanical Fitter or similar heavy-mechanical trade.
- Demonstrated site leadership experience in mining, maintenance or shutdowns, whether as a supervisor, leading hand or senior tradesperson.
- Experience with crushers, sizers, screens, conveyors or comparable heavy equipment is highly regarded; direct MMD or sizer experience is not essential.
- Valid Australian manual driver’s licence.
- Current forklift licence/ticket is essential.
- A current rigging ticket is highly desirable, but not essential.
- An S26 (Schedule 26) Statutory Supervisor qualification is highly desirable. Candidates who do not hold it must be willing to work towards the qualification.
- Comfortable travelling to mine sites for shutdown periods that may be on short notice, over weekends and sometimes public holidays and over minimum 12-hour days.

Skills & Attributes

- Excellent leadership, team coordination, and communication skills.
- High attention to detail in safety, documentation, and job execution.
- Robust problem-solving and critical thinking ability.
- Able to work under pressure, manage competing prio

📌 Site Service Supervisor (City of Swan)
🏢 MMD Australia (West
📍 City of Swan