A leading battery minerals provider in Perth is seeking an experienced Principal Process Engineer to optimise performance at the Kathleen Valley lithium processing plant. This hands-on role involves driving plant optimisation, designing test work programs, and providing expert support to operations teams. The ideal candidate has over 10 years in mineral processing metallurgy and must bring a proven track record of operational improvements. The position offers a Perth base with regular site rotations to Kathleen Valley, balancing technical leadership and operational engagement.#J-18808-Ljbffr