Mobile Plant Mechanic

Qualified Heavy Diesel Mechanic wanted for a full-time workshop and field role in Mackay - competitive pay, overtime opportunities and career progression!

Downer's Transport & Infrastructure business manages and maintains road networks across Australia and New Zealand, with civil and commercial construction in New Zealand. We are an integrated trans-Tasman team with a leading portfolio of products and services. By sharing our capabilities and insights across our regions we achieve the best technical solutions for our customers' challenges, and for our communities.

Heavy Diesel Mechanic - Workshop & Field Role

Location: Mackay, QLD |

Employment Type: Full-Time |

Workshop & Field-Based

Competitive Pay + Overtime Available | Modern Fleet & Equipment | Career Growth & Supportive Team

About the Role

Downer is seeking skilled Heavy Diesel Mechanics, Technicians, or Fitters to join our team in Mackay, QLD. This hybrid role offers the best of both worlds: workshop-based maintenance and the variety of field service. One day you'll be in the workshop, the next you'll be on site diagnosing faults and keeping projects moving.

If you thrive on variety, enjoy problem-solving, and want to be part of a team that values safety, quality, and collaboration-this role is for you. Overtime opportunities also available with penalty pay.

What We Offer

• Competitive hourly rates based on experience, plus overtime opportunities
• Hands-on work with a modern, well-maintained fleet of trucks and plant
• Ongoing training and career development in a supportive environment
• A strong safety-first culture with Zero Harm as a core value
• Inclusive and team-focused culture with regular team activities

Key Responsibilities

• Service, repair, and maintain heavy plant machinery and trucks
• Diagnose and resolve breakdowns in the field
• Ensure all work meets Downer's high safety and operational standards
• Work collaboratively within a skilled team while also operating independently

About You

• Trade qualification in Heavy Diesel Mechanics, Plant Mechanics, or Fitting (essential)
• Strong hydraulic knowledge and diagnostic skills
• Experience with mobile plant, trucks, and heavy equipment
• Auto electrical experience (highly regarded)
• HR and Forklift licences (desirable)
• A proactive approach and commitment to safety

Apply below with your resume and cover letter outlining why you think you would be a good fit for the role!

At Downer, we believe in potential. Even if your experience doesn't perfectly align, we encourage you to apply - you might be exactly who we're looking for.