Senior Engineer Mechanical

Tianqi Lithium Kwinana Pty Ltd; City Of Kwinana; On-site; AUD 180,000 - 260,000; Full time

Benefits offered by this job

Competitive salary

Discretionary bonus

Additional superannuation

Long service leave

Inclusive environment

Job summary

Tianqi Lithium Kwinana Pty Ltd is seeking a Senior Engineer Mechanical to lead mechanical engineering activities on debottlenecking and brownfield PMRs at the Kwinana plant. You will coordinate with multi-discipline teams, review datasheets, ensure compliance with Australian Standards, and provide construction support.

The role requires a Bachelor's in mechanical engineering and at least 10 years in brownfield projects within process industries.

Qualifications

• Bachelor's degree in mechanical engineering is required.
• 10+ years in mechanical engineering, including brownfield/projects in process industries.
• Strong understanding of AS and Australian standards relevant to process plants.

Responsibilities

• Lead mechanical design and technical assessments for debottlenecking PMR projects (piping, pressure equipment, rotating machinery, mechanical packages).
• Review and approve mechanical deliverables: datasheets, specifications, layout drawings, tie-ins, calculations.
• Coordinate with multi-discipline teams to ensure integrated design outcomes and compliant solutions.
• Support procurement with technical specs and vendor evaluations; review vendor documentation.
• Participate in HAZOPs, constructability reviews, and risk assessments.

Skills

Leadership

Project experience

Stakeholder engagement

Safety mindset

Education

Bachelor's degree in mechanical engineering

Tools

3D modeling software

Job description

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.

Company description:

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.

Job description:

Are you passionate about making a real impact?

TLEA is welcoming applications for a full-time Senior Engineer Mechanical to join our team working at our Kwinana plant.

The successful applicant will be responsible for leading mechanical engineering activities on debottlenecking and brownfield modification projects (PMRs) at TLK's lithium refinery operation plant. This role provides end-to-end technical input across the project lifecycle - from concept development through to construction support - ensuring all mechanical designs are safe, fit-for-purpose, and aligned with plant operability. The position requires strong coordination with internal stakeholders, consultants, and operations teams to deliver efficient, compliant, and constructible engineering solutions.

In addition to possessing our core values of distinction, pragmatism, honesty, tenacity and innovation, this position will suit an individual with extensive prior experience as a senior mechanical engineer, ideally within Brownfield Environments and Operations.

Profile description:

• Lead mechanical design and technical assessments for assigned debottlenecking PMR projects, including piping, pressure equipment, rotating machinery, and mechanical packages.
• Review and approve mechanical engineering deliverables such as 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 with multi-discipline engineering teams (process, civil, structural, electrical, instrumentation) to ensure integrated design outcomes.
• Support procurement through preparation of technical specifications, evaluation of vendor submissions, and review of vendor documentation.
• Participate in HAZOPs, constructability reviews, and risk assessments to ensure safe and practical implementation of mechanical designs.
• Provide engineering support during construction, commissioning, and handover phases.
• Engage with operations and maintenance teams to ensure mechanical solutions are maintainable and aligned with site strategy.

What you can bring

• Bachelor's degree in mechanical engineering.
• Minimum 10 years' 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.

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

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