Job Description

Join JMH Group — Experienced Mobile Plant Mechanic

Are you ready for an exciting career in mining & heavy-duty maintenance?

At JMH Group, we’re more than just a maintenance contractor. We’re a trusted partner to the mining, construction, transport and civil industries across Western Australia. With modern workshops, fully-equipped field service vehicles and a team of OEM-trained technicians, we pride ourselves on quality, safety, and supporting our tradespeople to grow and thrive.

We’re looking for experienced Mobile Plant / Heavy-Duty Diesel Mechanics to join our growing team — on FIFO or DIDO mine-site rosters, or workshop-based roles. If you’re motivated, skilled and ready for a new challenge, we want to hear from you.

What You’ll Do

• Perform maintenance, servicing and repairs on a wide range of mobile plant, earthmoving, mining and heavy-duty machines.
• Troubleshoot mechanical faults and complete high-quality repairs to keep equipment running.
• Work safely, efficiently and to high standards according to site or workshop requirements.
• Use OEM-level tooling and diagnostic equipment, provided by JMH, ensuring quality workmanship.
• Follow safety guidelines, site procedures and company WHS standards at all times.

What We’re Looking For

• Australian Trade Certificate as a Mobile Plant Mechanic or Heavy-Duty Diesel Mechanic.
• Proven experience as a qualified mobile plant / field service mechanic — prior mine-site or heavy-duty plant experience highly regarded.
• Strong technical, diagnostic and mechanical skills.
• Reliable, proactive, team-minded and able to work independently when required.
• Good communication and a commitment to safety and quality.
• Must pass a pre-employment medical and national police check.
• Full Australian work rights. (Note: we are not sponsoring or nominating visa holders.)

What You’ll Get As Part of the JMH Team

• Competitive pay: up to $80–$90 per hour for FIFO / DIDO mine-site work.
• Flexible options: FIFO / DIDO site rosters or workshop-based roles at our Geraldton Workshop
• Work with a respected, well-resourced company offering modern workshops, field service vehicles and OEM-level tooling, giving you the tools to do quality work safely.
• Opportunity to work across a broad scope: mining, earthmoving, transport, civil-construction, and more — widening your skills and experience.
• Opportunities for Surface and Underground positions.
• Supportive, team-oriented culture that values quality workmanship, safety, fairness and work/life balance.
• Stability and ongoing opportunities as part of a growing business that values its tradespeople and invests in equipment, tools and ongoing support.

Why JMH Group?

Industry-leading expertise & wide scope — JMH is a recognised “one-stop shop” for mobile plant and equipment maintenance, repairs, parts supply, tooling hire and support for mining, construction, road transport and civil projects. You’ll have the opportunity to work across a diverse range of machines and tasks.

Access to top-tier tools, equipment and OEM training — JMH employs OEM-trained technicians (from brands like Komatsu, Toyota, JCB, etc.), uses up-to-date diagnostic and repair tooling, and keeps pace with the latest industry technologies.

Flexible work options & good work/life balance — Whether you prefer workshop-based work, site-based FIFO/DIDO roles, or field service/maintenance work — JMH offers flexibility to suit you.

Support for ongoing development and career progression — Through our “Career Advancement Program,” JMH encourages qualified staff to upskill and expand trades (e.g. moving from light-vehicle mechanics or other trades into heavy-duty diesel or dual-trade roles).

Supportive, team-oriented culture and stable employment — JMH is a close-knit, family-owned business that values safety, teamwork, respect, and quality workmanship. Employees benefit from weekly pay cycles, tool-account options, salary packaging, and support from experienced management and parts/clerical teams.

Varied work on quality plant & site types — Working with a large network of equipment and clients across mining, transport, civil construction and more, your day-to-day will be diverse — ideal if you enjoy variety and are keen to build a broad skill set.

How to Apply

If you’re a qualified, experienced Mobile Plant or Heavy-Duty Diesel Mechanic ready for a rewarding job with great pay, send your resume + trade certificates to hr@jmhgroup.net.au

Please include a short cover letter summarising your experience and the type of roster you prefer (FIFO / DIDO / workshop).

We look forward to hearing from reliable, motivated tradespeople eager to be part of the JMH Group team.