ABOUT SO4

SO4 is on a mission to produce world-class Sulphate of Potash (SOP). Our Lake Way asset is in the Goldfields region of Western Australia, 15 kms south of Wiluna. With our first product successfully delivered and operations ramping up, we are entering an exciting phase of growth.

Be a part of this exhilarating new chapter and join an innovative and forward-thinking mining company at the forefront of a new industry in Australia, who are focused on sustainability and making a change.

Our values guide the way we work every day:

People | Ownership | Nurture | Drive | Safety

We value integrity, accountability, teamwork and continuous improvement while ensuring the safety of our people and the sustainability of our operations

ABOUT THE ROLE

We are seeking a Senior Production Process Engineer reporting to the Process Plant Manager to lead the process design, optimisation, and quality assurance strategies that drive the efficient, safe, and sustainable operation of the plant. In addition, improve process performance, maintain high product quality standards, and ensure compliance with regulatory requirements.

As the Senior Production Process Engineer, you will:

- Support a secure and efficient project delivery, ensuring schedules, scopes and contractor activities align with operational objectives

- Provide technical guidance across ponds, bores, and our processing operations

- Lead process optimisation initiatives, including plant monitoring, metallurgical accounting, and data analysis

- Develop and maintain process models, sampling standards, and feed blend guidance to support production performance

- Contribute to troubleshooting, root-cause investigations, and continuous improvement activities across our operations





- Mentor and support metallurgists and operators whilst promoting strong safety, compliance, and operational discipline

- Prepare concise operational reports, forecasts, and performance insights to support decision-making

ABOUT YOU

You will be a safety-focused, an effective communicator, proactive in developing team capability, and confident leading and influencing others.

To be successful you will have:

- Bachelor’s degree in chemical or metallurgical engineering.

- Certificate IV in Frontline Management (advantageous).

- Current WA “C” Class driver’s licence.

- 7+ years’ experience in process engineering or plant operations (salt, potash, or mining preferred).

- 5 years’ experience specifically as a Senior Process Plant Engineer

- Strong understanding of mineral processing, metallurgical accounting, evaporation pond operations, and potash crystallisation.

- Exposure to reporting and metallurgical accounting.

- Proven analytical, problem-solving, and reporting capabilities, with experience producing operational forecasts.

- Exposure to people management.

- Strong leadership, contractor management, and stakeholder engagement skills.

- Proven ability to identify and implement process plant optimisation and improvement

- Proficiency with Office 365 (advanced Excel), with experience in Pronto; Aconex/INX desirable.





WHAT WE OFFER YOU

Our culture is inclusive, friendly, and fun. We are passionate about our work and work hard to achieve our individual and team goals. We help each other out and share our knowledge.

- Our perks continue to grow, some of these include:

- Permanent full time opportunity.

- Healthy and competitive salary.

- FIFO ex Perth to Wiluna, on arrival a short 10-minute commute to site

- 8/6 roster

- Team social events.

- Employee Assistance Program (EAP) and Wellness App.

- Salary Packaging (Novated Lease Vehicles, Electronic Devices, Education Expenses, FIFO Travel and FIFO Airport Car Parking).

- Salary Sacrificing (Superannuation).

HOW TO APPLY

If you are a results-driven engineering professional with the experience and passion to deliver excellence in capital projects, we'd love to hear from you.

Applicants must hold full Australian working rights and meet site access and safety requirements, including pre-employment medical, drug and alcohol screening, and a current National Police Clearance, in line with WA mining regulations.

To be considered for the role, candidates must:

- Submit CV and Cover Letter

- Successfully complete a pre-employment medical to ensure fitness for the inherent requirements of the position

- Provide a clear National Police Clearance prior to commencement.

Pre-employment checks will be conducted in accordance with applicable WA legislation and company policy.

SO4 celebrates diversity and encourages applicants from culturally diverse backgrounds to apply, including Aboriginal and Torres Strait Islander people, people from diverse cultural backgrounds and people with disabilities.

📌 Senior Production Process Engineer (Wiluna)
🏢 SO4
📍 Wiluna