Water Treatment Process Plant Operator/Maintainer

Discover the role for you while shaping WA's water future.

Everyone deserves access to safe water, and we're all about providing consistent and reliable water services to our customers. Whether you're out in the field repairing a fault or making important decisions in our operations centre, a career in our operations team is dynamic, challenging and rewarding.

• Permanent role based in Onslow, relocation assistance available
• Subsidised housing and air conditioning allowance included
• Base Wage $110,860 with a total remuneration package of Approximately $185,000 (inclusive of base salary, location allowance, overtime, housing and single location allowance) plus Superannuation

About the role

As a Water Industry Technician - Desalination, you'll play a critical role in ensuring the safe and efficient operation of our desalination plant. You'll be responsible for monitoring, maintaining, and optimising the reverse osmosis and associated treatment processes that convert seawater into high-quality drinking water.

Working both independently and as part of a skilled team, you'll oversee daily plant operations, conduct water quality testing, troubleshoot equipment issues, and ensure compliance with environmental and safety standards. This hands-on role requires strong technical knowledge, attention to detail, and a commitment to delivering reliable water services to the community.

You'll also contribute to continuous improvement initiatives and maintain accurate operational records.

Who are we?

When you join Water Corporation, you play an important role for the people of WA. Our services are essential for life - everyday, millions of Western Australians rely on us to deliver and manage water across our state.

If you're driven to make a meaningful contribution, you've come to the right place.

Real benefits that matter

• 9-day fortnight
• Two well-being days each year to do whatever you need to do to feel good
• Access to long service leave pro rata after 3 years of service, with full long service after 7 years
• Generous co-contribution superannuation scheme, which offers up to 16%. This includes an 12% standard employer contribution, plus an additional 2% employer co-contribution that matches your own 2% contribution.
• Purchase additional leave of up to 12 weeks or work 4 years at a reduced salary and take the fifth year off as paid leave
• Aboriginal and Torres Strait Islander cultural and ceremonial leave of up to 5 days so you can maintain your cultural connection and wellbeing.

Discover more benefits we offer to support the unique and individual ways our employees live.

What you can expect with this role

• Operate and monitor desalination processes (RO/UF and associated systems) in compliance with water quality and production targets
• Conduct routine inspections, testing, and adjustments to optimise plant performance.
• Perform planned maintenance, troubleshooting and repairs on pumps, valves, membranes, instrumentation, and supporting equipment.
• Conduct water samples to ensure compliance within water quality standards
• Maintain accurate records of operational data, maintenance activities, and safety checks.
• Respond to alarms, troubleshoot issues, and perform corrective actions
• Maintain cleanliness and orderliness of the plant and surrounding areas
• Collaborate with other operators and technical staff to optimise plant performance

Your skills and experience

For this role, we are looking for great talent with:

• Trade qualification (Electrician or Mechanical Fitter), essential
• Certificate III or IV in Water Industry Operations (or equivalent) desirable
• Experience in complex process plant operation, ideally in desalination, water treatment, or similar industries. Essential.
• Strong understanding of water quality standards and environmental regulations
• Ability to interpret P&IDs, technical drawings, and SCADA systems.
• Ability to work independently and as part of a team
• Good problem-solving and mechanical aptitude
• Basic computer skills for data entry and reporting
• Willingness to be on-call as required

Sound like a match? Apply today

If you are interested in the above opportunity, please submit a covering letter and resume that best demonstrates your skills and experience as well as your ability to meet the requirements of the role.

Applications close 12th October 2025

As part of the recruitment process you will be required to complete Pre-Employment screening which may include a medical, qualification check police clearance and Australian working rights check.

We reserve the right to withdraw this ad prior to the closing date.

Our commitment to a diverse and inclusive workplace:

Diversity and inclusion are more than words. They guide us on building a thriving workforce that reflects the diversity of our customers and our community.

We encourage applications from every background, including Aboriginal and Torres Strait Islander people, people with disability, women, youth, LGBTQIA+ folks and people from culturally and linguistically diverse backgrounds.

We are committed to ensuring an accessible and inclusive work environment to enable people with disability to participate fully in all aspects of employment.

Applicants with disability who require adjustments, or alternative methods of communication in the recruitment process, can contact a Recruitment Officer at or

To read our diversity and inclusion statement, please visit our website