Engineer Senior Mechanical

DISCOVER A BRIGHTER FUTURE

At South32, we’re meeting the challenge of enabling a sustainable future through our focus on responsibly producing commodities critical for a low-carbon world. As a collaborative, caring and inclusive company, there’s no better place to make a genuine difference. Together we’re making a positive, global impact that has the potential to change lives. Whatever career path you choose, we’ll support you every step of the way to learn, grow and succeed. So join us, step towards a brighter future and leave your legacy. 

ABOUT WORSLEY

Are you looking to be home every night? If so, this is your opportunity to live, work and play a short drive from stunning coastlines, scenic trails, magnificent jarrah forests and the food and wine heartland of the South-West and Peel Regions of Western Australia.

Our integrated Bauxite Mine, Alumina Refinery and Port Operation is creating the essential products needed for a sustainable low carbon future and is on a journey to become the world’s leading Alumina producer where our workforce value the lifestyle that Worsley Alumina has to offer. 

WHAT SOUTH32 OFFERS

• Ability to purchase up to 4 weeks of additional annual leave.
• 26 weeks full-paid, or 52 weeks half-paid parental leave for primary carers. 
• Annual short-term incentive bonus that recognises both your individual performance and the overall success of the business.

• Discounted rates on travel, healthcare, and technology products.

ABOUT THE ROLE

This is a Permanent position on a 9-day fortnight roster. This role will be based at our Worsley Alumina Refinery which is a short drive from Collie (15 minutes), Bunbury (35 minutes) and other nearby scenic communities.

As there is no accommodation on site, you will be required to drive in, drive out on a daily basis. Employees ideally live within an hour’s drive of Collie. 

As the Engineer Senior Mechanical, you will be responsible for providing specialised A&I expertise to optimise asset performance and strengthen maintenance effectiveness across the operation.

Key responsibilities include, but are not limited to: 

• Deliver strategic projects, initiatives, and trials that enhance safety, reliability, and cost performance.
• Lead, develop, and mentor Maintenance Specialists and Reliability Engineers, with a strong focus on safety, risk management, cost reduction, and continuous improvement.
• Ensure the integrity of master data and the quality of work design documentation through effective leadership of Maintenance Specialists.
• Provide clear technical direction on scope, risk, and cost to support the timely delivery of improvement initiatives.
• Foster a strong improvement culture by actively supporting and enabling Execution team improvement initiatives.
• Support Maintenance Execution budgeting and cost management activities.
• Conduct structured reviews using proven methodologies to optimise maintenance strategies, improve equipment reliability, and reduce maintenance costs.

ABOUT YOU 

You will have experience and demonstrate capability in the following:  

• Operating effectively in complex, process‑driven industrial or resources environments
• Applying strong analytical and problem‑solving skills to improve equipment performance
• Influencing, mentoring and coaching others to build discipline and shared accountability
• Collaborating across engineering, maintenance and operations to deliver sustainable outcomes

Qualifications for this position are:  

• Degree in Mechanical Engineering
• Post Graduate qualification in engineering/ management (desirable)     

South32 is committed to building and maintaining an inclusive and diverse workforce that reflects the communities in which we operate.  We provide a recruitment process that is fair, equitable and accessible for all and we encourage candidates from all backgrounds to apply.

The job advert will close on Friday 13 March 2026