Process Engineer Water Treatment and Tailings WA

Want to contribute to a sustainable future? Join Lynas Rare Earths, the world’s only significant supplier of separated rare earth materials outside of China, as we continue to meet global market needs for sustainably produced rare earth products.

Lynas Rare Earths is an ethical and environmentally responsible producer of rare earth materials. Boasting a life of mine of 20+ years, our materials are used in many future-facing applications, including electronics, wind turbines and hybrid and electric vehicles.

Our Rare Earths deposit in Mt Weld, Western Australia, is acknowledged as one of the highest-grade Rare Earths mine in the world– so you’re joining a very unique team!

Lynas Rare Earths is seeking an experienced Process Engineer – Water Treatment & Tailings WA to support our Mt Weld and Kalgoorlie operations. This is a FIFO position from Perth to our Mt Weld Operations on an 8/6 roster.

Salary: $184,500 - $200,000 (including 12% superannuation)

Reporting to the Superintendent Process Control, this role is responsible for monitoring, optimising, and improving water treatment and tailings management systems to support safe, compliant, and efficient operations across WA sites. The position is based in Mt Weld, however frequent travel to Kalgoorlie is required as this is a WA wide position.

As a highly valued member of the Lynas Rare Earths team, you will:

Monitor and optimise water treatment and tailings processes

Support Tailings Storage Facilities (TSF) operations, water recovery, and water balance management, from a technical perspective

Analyse process and environmental data to identify improvement opportunities

Assist with process optimisation projects, investigations, and trials

Ensure compliance with environmental and regulatory requirements

Work closely with Operations, Maintenance, and Environmental teams

Prepare technical reports, procedures, and performance metrics

Promote strong HSE and continuous improvement practices

What you will bring to the team

Degree in Chemical, Metallurgical, Environmental Engineering, or related discipline

3–7 years’ experience in process engineering within mining or heavy industry

Experience with water treatment systems and process optimisation

Exposure to tailings systems and TSFs highly regarded

Strong analytical, communication, and problem-solving skills

Ability to work across remote FIFO operations

Commitment to safety, sustainability, and operational excellence

Design, commissioning, and optimisation of water treatment and tailings-related projects

Water treatment chemicals

Dangerous goods and process safety

Postgraduate qualifications

Membership with a relevant professional body

Command in water chemistry / simulation software (i.e. Visual Minteq, etc.).

We welcome and encourage applications from Aboriginal and Torres Strait Islander people, the LGBTI+ community, mature workers, as well as candidates with culturally diverse backgrounds.

Process Engineer Water Treatment and Tailings WA

Resources & Energy Mining - Processing

Closes 21st Aug 26

Perth Western Australia Australia