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
THE ROLE
As a Metallurgist/Process Engineer, you will play a pivotal role in ensuring the productive and reliable operation of our processing plant.
This position is central to monitoring, optimising, and continuously improving metallurgical performance while driving process innovation and supporting overall operational excellence.
Your responsibilities include:
Monitor daily plant performance to ensure recovery, yield, and product quality stay on target
Identify problems and optimise processes to improve efficiency and reduce costs
Run and manage test work (lab and pilot scale) to trial new ideas, technologies, and process changes
Analyse metallurgical data and complete daily metallurgical accounting and reporting
Troubleshoot process issues and work with operations and maintenance to fix problems quickly




Provide technical support and training to plant operators to improve process understanding and control
Develop clear reports on plant performance, test work results, and improvement opportunities
Ensure all work meets safety and compliance standards, following WHS requirements and company procedures
Work closely with production, maintenance, and engineering teams to support plant goals and continuous improvement
Drive process improvement initiatives to increase efficiency, reduce downtime, and enhance product quality
ABOUT YOU
You are an analytical and proactive Metallurgist/Process Engineer with a minimum of 2 years' experience, who enjoys working in a plant environment and improving process performance
To be successful you will have:
Bachelor's degree in chemical engineering or a related discipline
Current "C" Class Western Australian driver's license
Construction White Card
Strong computer skills, including Office 365, with experience in Power BI or Visual Basic
Familiarity with SysCAD, Pronto, Aconex, or INX (desirable)
Knowledge of mineral processing, including flotation, crystallisation, evaporation, or brine chemistry
Experience with metallurgical accounting and analysing plant performance data
A solid understanding of safety and environmental requirements




Familiarity with evaporation pond design and solar salt operating principles
Knowledge of potash crystallisation processes and techniques
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.
Permanent full-time opportunity
8/6 Family Friendly Roster
FIFO ex Perth, short commute direct to site
Competitive based salary
Team social events
8 weeks of Paid Parental Leave, including return to work incentive
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're a motivated Metallurgist/Process Engineer looking to make an impact in a dynamic operational environment, we'd love to hear from you.
Ready to take the next step?
Apply now
by submitting your current resume and a cover letter outlining your suitability for the role.
Applicants must have unrestricted Australian working rights and be able to meet site access requirements, including a pre-employment medical, drug and alcohol screening, and a current National Police Clearance in accordance with WA mining regulations.
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.

📌 Metallurgist / Process Engineer (Kalgoorlie - Boulder)
🏢 SO4
📍 Kalgoorlie - Boulder