Hygiene Advisor Tiwai

Industrial Hygienist NZAS

Tiwai Point Invercargill Permanent Role Relocation Provided

Join New Zealand Aluminium Smelters (NZAS) a globally recognised producer of ultrahighpurity lowcarbon aluminium. Our operation is one of Aotearoa New Zealands most complex industrial environments and protecting the longterm health of the people who work here is critical.

We are seeking an Industrial Hygienist to lead and continually strengthen our workplace exposure monitoring programme across all NZAS operations in line with New Zealand legislation and Rio Tintos global health standards.

This is a rare opportunity to shape the longterm health protection of an entire workforce.

About the Role

As the sites subject matter expert in occupational hygiene you will own the systems monitoring insight generation and strategic risk management that protect workers from health hazards. You will work across all production areas maintenance teams and contracting partners.

Your responsibilities include:

• Leading the full workplace hygiene monitoring programme (airborne contaminants noise thermal stress ergonomics biological and chemical exposures)
• Ensuring compliance with NZ legislation Rio Tinto health standards and portrelated regulatory requirements (where applicable)
• Designing and executing exposure monitoring plans including personal and static sampling both independently as well as working alongside our external consultants
• Conducting exposure assessments interpreting results and communicating health risks clearly to leaders and workers
• Advising on engineering administrative and PPE controls to manage exposures
• Supporting the development and continuous improvement of Rio Tinto health systems processes and audits
• Assessing contractor compliance and supporting healthrelated contractor management
• Reporting critical health risks and trends to the HSES Manager and wider leadership team
• Providing expert technical support for investigations involving potential health exposures
• Building capability across frontline teams through practical coaching and education

You will be a trusted technical advisor who combines scientific rigour with practical operational understanding.

What Youll Bring

We welcome both experienced Occupational/Industrial Hygienists and those working toward professional accreditation.

You will have:

• Experience in occupational hygiene exposure assessment industrial health or a related discipline
• Practical working knowledge of NZ workplace health legislation and exposure standards
• Strong analytical skills and confidence interpreting complex monitoring data
• Ability to develop monitoring strategies and deliver clear meaningful insights
• Strong communication skills with credibility at all levels of the operation
• A relevant qualification in occupational hygiene health science science engineering or similar
• Preferred: Chartered / certified Occupational Hygienist (e.g. BOHS AIOH IOHA).
• Considered: Candidates actively working toward certification and demonstrating strong technical capability and professional growth potential.

This role suits someone who is methodical curious evidencedriven and passionate about protecting longterm worker health.

This Role Is for You If You

• Want to own and evolve a sitewide occupational hygiene programme
• Enjoy technical fieldwork analysis and translating data into practical controls
• Value accuracy integrity and scientific discipline
• Are excited by complex industrial environments
• Want to make a direct longterm impact on worker health outcomes

What We Offer

• Permanent role based in Invercargill with full relocation support
• Competitive salary with annual incentive
• Medical benefits wellbeing support and retirement savings
• Flexible working arrangements
• Rio Tinto employee share programme
• Career development and global network opportunities across Rio Tinto
• The chance to lead meaningful health protection work in a worldclass industrial facility

About NZAS / Rio Tinto

NZAS is part of Rio Tinto Aluminium & Lithium Pacific Operations. We operate one of the worlds cleanest most efficient aluminium smelters supported by a diverse team of technical specialists. Invercargill offers an exceptional lifestyle with affordable living outdoor adventure strong schools and a supportive community.

Ready to Shape the Future of Worker Health at NZAS

Apply now and help strengthen the health protection systems of one of New Zealands most important industrial operations.

Applications close: Friday 6 February 2026
Learn more:

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About Rio Tinto

Rio Tinto is a leading global mining and materials company. We operate in 35 countries where we produce iron ore copper aluminium critical minerals and other materials needed for the global energy transition and for people communities and nations to thrive.

We have been mining for 150 years and operate with knowledge built up across generations and continents. Our purpose is finding better ways to provide the materials the world needs striving for innovation and continuous improvement to produce materials with low emissions and to the right environmental social and governance standards. But we cant do it on our own so were focused on creating partnerships to solve problems create win-win situations and meet opportunities.

Respect and Inclusion

At Rio Tinto we particularly welcome and encourage applications from Indigenous Peoples women the LGBTQIA community mature workers people with disabilities and people from different cultural backgrounds.

We are committed to an inclusive environment where people feel comfortable to be themselves. We want our people to feel that all voices are heard all cultures respected and that a variety of perspectives are not only welcome they are essential to our success. We treat each other fairly and with dignity regardless of race gender nationality ethnic origin religion age sexual orientation or anything else that makes us different.