Principal Process Engineer

Date: 18 Feb 2026

Location: West Perth, Western Australia, Australia

Company: Liontown Resources Limited

Perth / Kathleen Valley, Western Australia

Drive lithium processing excellence at Australia's newest spodumene operation

 

Liontown is seeking an experienced Principal Process Engineer to optimise performance at our Kathleen Valley lithium processing plant and shape the technical roadmap for future expansion.

 

The opportunity

 

This is a hands-on technical leadership role where you will drive the plant optimisation program, with a particular focus on plant throughput and recovery. You will bridge technical design and operational execution, ensuring processing and metallurgical theory translates into measurable plant performance gains.

 

Working with our world-class lithium asset, you will design and implement test work programs, work with the site team to ensure the plant operating philosophy is optimised and provide expert technical support to operations teams tackling real-time challenges in spodumene concentrate production.

 

What you'll bring

 

Essential experience includes:

 

  • 10+ years in mineral processing metallurgy with proven plant optimisation results.
  • Demonstrated experience with spodumene concentrate production operations.
  • Track record designing test work programs that deliver operational improvements.
  • Experience in process design, operating philosophy development, and commissioning support.
  • Strong collaboration skills working with operations teams to implement practical solutions.

 

Your lithium processing expertise will be vital as you lead initiatives across our whole-of-ore flotation circuit, across comminution, flotation and tailings management.

 

Why Liontown

 

Join a responsible battery minerals provider with tier-one credentials, strategic partnerships, and a mission to power a sustainable future. You will work on technically challenging problems at a significant scale, with the opportunity to shape the processing and metallurgical strategy for both current operations and future expansions.

 

This role offers the flexibility of a Perth base with regular site rotations to Kathleen Valley, allowing you to balance technical leadership with hands-on operational engagement.