Cortis Diesel Service Pty Ltd – Cloncurry QLD
We're looking for an experienced and motivated Diesel Fitter to join our small, dedicated maintenance team. In this hands-on role, you'll be responsible for the servicing, repairs, and maintenance of a diverse range of earthmoving, transport, mining, and agricultural equipment, ensuring all machinery operates safely, efficiently, and reliably. You'll work across both our workshop and field service environments, with a personal company vehicle supplied. This position offers plenty of variety, independence, and the opportunity to broaden your mechanical skills across a wide range of equipment.
Key responsibilities
Diagnose, repair, and maintain heavy earthmoving machinery, road trains, mining and agricultural equipment
Perform preventative maintenance, fault finding, and general mechanical repairs
Conduct inspections and complete accurate service and repair documentation
Attend breakdowns and field service jobs as required
Collaborate with operators and supervisors to minimise equipment downtime
Maintain a safe, clean, and efficient work environment
About you
Trade qualification – Diesel Fitter / Heavy Vehicle Mechanic (Cert III or equivalent)
Experience with Caterpillar,



Komatsu, Kenworth, Mack, or similar equipment
Robust understanding of hydraulic, pneumatic, and electrical systems
Excellent diagnostic and problem-solving skills
Commitment to safety, reliability, and high-quality workmanship
Honest, team-oriented, positive, and friendly attitude
Willingness to work the occasional weekend when required
About us
Cortis Diesel Service is a small family-run business built on strong values of honesty, teamwork, and autonomy. Our reputation is based on quality workmanship, reliability, and a genuine commitment to safety. We take pride in maintaining heavy earthmoving machinery, road trains, and a wide variety of mining and agricultural equipment for various clients across Cloncurry and surrounding communities. Our team culture is supportive, friendly, and focused on doing the job right the first time.
Benefits
Competitive hourly rate
Supportive team environment
Well-equipped workshop and quality machinery
Personal work vehicle
Long-term, stable employment with opportunities for learning and growth within the trade
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📌 Diesel Fitter / Heavy Vehicle Mechanic (Cloncurry)
🏢 Cortis Diesel Service
📍 Cloncurry