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 processesSupport Tailings Storage Facilities (TSF) operations, water recovery, and water balance management, from a technical perspectiveAnalyse process and environmental data to identify improvement opportunitiesAssist with process optimisation projects, investigations, and trialsEnsure compliance with environmental and regulatory requirementsWork closely with Operations, Maintenance, and Environmental teamsPrepare technical reports, procedures, and performance metricsPromote strong HSE and continuous improvement practicesWhat you will bring to the team: Degree in Chemical, Metallurgical, Environmental Engineering, or related discipline3–7 years’ experience in process engineering within mining or heavy industryExperience with water treatment systems and process optimisationExposure to tailings systems and TSFs highly regardedStrong analytical, communication, and problem-solving skillsAbility to work across remote FIFO operationsCommitment to safety, sustainability, and operational excellenceCandidates with the following desirable qualifications and experience will be highly regarded:Design, commissioning, and optimisation of water treatment and tailings-related projectsWater treatment chemicalsDangerous goods and process safetyPostgraduate qualificationsMembership with a relevant professional bodyCommand 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

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

Candidates with the following desirable qualifications and experience will be highly regarded:

  • 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.