Maintenance Supervisor (Middlemount)

Why Join MacKellar:
- Competitive remuneration package + company vehicle
- Permanent role on 7/7 roster with meals, camp accommodation, and PPE supplied
- Long-term project with well-established workshop facilities
- Stable leadership role within a reputable mining contractor
- Solid safety culture and supportive team environment We are seeking an experienced and hands-on Maintenance Supervisor to lead day-to-day maintenance operations across our heavy mobile plant fleet. This role is ideal for a strong leader who thrives in a fast-paced mining environment and can balance safety, performance, cost control and team development while maintaining high workshop standards. About the Role: Reporting to the Maintenance Superintendent, you will take ownership of all maintenance activities, ensuring plant reliability, compliance and productivity targets are consistently achieved. You will provide visible leadership within the workshop, mentor tradespeople, and drive a proactive preventative maintenance culture. Key Responsibilities:
- Supervise and coordinate maintenance and repair activities across the mobile plant fleet
- Drive safe, efficient and cost-effective maintenance outcomes
- Ensure all maintenance reporting, compliance documentation and system updates are completed accurately (CMMS exposure highly regarded)
- Lead and mentor fitters and maintenance personnel to deliver high-quality workmanship
- Monitor budget, labour allocation and scheduling to meet operational targets
- Identify continuous improvement opportunities to enhance fleet reliability
- Maintain strong collaboration with operations and site leadership teams
- Actively promote and enforce a positive safety culture About You: To be successful in this role, you will bring:

- Extensive experience supervising maintenance teams within mining or heavy industry
- Strong exposure to heavy mobile plant and equipment
- Trade qualification (Mechanical or relevant discipline)
- Demonstrated leadership capability with a strong safety and compliance focus
- Current Mining Supervisor competencies (G1, G8, G9 – formerly S1, S2, S3)
- Current G2 – Carry out the Risk Management Process (RIIRIS402D)
- Current Standard 11
- Valid Driver’s Licence When you join MacKellar, you become part of a business that genuinely values its people, prioritises safety, and respects the communities in which we operate. We welcome diverse perspectives, skills and experiences and believe they make us stronger as a team. Only applicants who meet the required experience and qualifications will be contacted. Apply on Kit Job: kitjobau.com/job/3ro09x