Senior Engineer Mechanical

OUR CULTURE

We are a joint venture between Tianqi Lithium Corporation and IGO Ltd. As pioneers in the Australian lithium industry, we've already achieved great things, including building the first battery-grade lithium hydroxide plant in Australia, paving the way for Australia to be a major player in the global transition to a clean energy future.

We’re looking for people who want to be a part of the industry of the future - people who work with purpose and urgency, take initiative, and rise to challenges. We're seeking individuals who empower others, embrace innovation, and want to work in an open and supportive environment, where teamwork and collaboration are valued. 

At TLEA, you’ll be part of a team that is excited to be involved in a world-class project that benefits not only the Western Australian community but the world.

ABOUT THE POSITION

Are you passionate about making a real impact?

TLEA is welcoming applications for a full-time Senior Engineer Mechanical to join our Kwinana team on a maximum term contract, initially until September 2027.

The successful applicant will be responsible for delivering mechanical engineering activities across debottlenecking and brownfield modification projects (PMRs and/or SCPs) within TLK’s lithium refinery. This role provides end-to-end technical input across the project lifecycle - from concept development and design through to construction support - ensuring all mechanical solutions are safe, fit-for-purpose, and aligned with plant operability requirements.

Success in this position requires strong coordination with internal stakeholders, consultants, and operations teams to ensure engineering deliverables are efficient, compliant, and constructible and that project outcomes support reliable, sustainable plant performance.

In addition to demonstrating our core values of distinction, pragmatism, honesty, tenacity and innovation, this role will suit an individual with a strong background in, and working knowledge of, brownfield environments and operational settings.  

DUTIES & RESPONSIBILITIES

• Lead mechanical design and technical assessments for assigned debottlenecking PMR projects, covering piping systems, pressure equipment, rotating machinery, and mechanical packages.
• Review, validate and approve mechanical engineering deliverables including datasheets, equipment specifications, layout drawings, tie-in details, and calculations.
• Ensure all mechanical designs comply with relevant Australian Standards, TLK engineering practices, and operational requirements.
• Coordinate closely with multi-discipline engineering teams - process, civil, structural, electrical, instrumentation - to ensure integrated design outcomes.
• Support procurement activities by preparing technical specifications, evaluating vendor submissions and reviewing vendor documentation for compliance and suitability.
• Participate in HAZOPs, constructability reviews and risk assessments to ensure mechanical designs are safe, practical and executable in a brownfields environment.
• Provide mechanical engineering support during construction, commissioning, and handover to ensure design intent is maintained.
• Engage proactively with operations and maintenance teams to ensure mechanical solutions are maintainable, operable and aligned with site strategy and long-term plant performance.

WHAT YOU CAN BRING

• Bachelor degree in mechanical engineering.
• Extensive experience in mechanical engineering roles, including brownfield and project-based work in resource or chemical processing industries.
• Sound understanding of Australian Standards (e.g., AS1210, AS4041, ASME) and engineering practices relevant to process plants.
• Proven experience in pressure equipment, piping systems, rotating equipment, and layout design.
• Experience reviewing 3D models, mechanical drawings, and design deliverables.
• Strong communication and stakeholder engagement skills.
• Safety-focused mindset with an ability to balance technical integrity and practical constructability.

WHAT WE OFFER

• Contribute to a green and sustainable industry of the future.
• Competitive salary with a performance-based discretionary bonus structure
• Additional Superannuation
• Award and recognition program
• Long service leave option after 5 years (pro rata)
• Supportive colleagues committed to your success and well-being
• Inclusive and diverse work environment

LOCATION

TLEA proudly acknowledges and the Whadjuk and Gnaala Karla Boodja people of the Noongar Nation, as the traditional custodians of the Kwinana area, where we operate our plant.

Kwinana is 38 km from the Perth central business district, 20 km from City of Fremantle and just 7km from Rockingham.

HOW DO I APPLY?

To find out more about this unique opportunity, please submit your application by 6th May 2026 by clicking the 'Apply' button. All applications and discussions will be kept strictly confidential.

Applicants are advised that the shortlisting and interview process may commence before the closing date.  

At Tianqi Lithium Energy Australia, we embrace and recognise the value of diversity. We are committed to providing a work environment where everyone is included, treated fairly and with respect. We welcome and encourage applications from people from diverse backgrounds.