Geochemist

Lihir. Central, Papua New Guinea

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Career Opportunities: Geochemist (43493)

Requisition ID 43493 - Posted

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Workplace Type: Onsite

About Newmont

At Newmont, we’re not just a world-leading gold and metals producer – we’re a team united by our commitment to shaping a more inclusive, sustainable, and responsible mining industry. Joining us means becoming part of a global, diverse workforce where everyone is valued, empowered, and encouraged to grow. Our people are the heart of our success, bringing exceptional skill, integrity, and dedication to everything we do as an organization and we’re dedicated to creating a workplace where everyone can thrive.

About Lihir

Our Lihir Operation, located on the beautiful island of Niolam, approximately 800km north of Papua New Guinea's capital, Port Moresby, is one of the world’s largest gold mines. Set within a geothermically active, extinct volcanic crater, Lihir operates an open-pit mine producing refractory ore, which undergoes pressure oxidation and conventional leaching to recover gold. Our workforce includes both residential and commute rosters, creating a diverse and dynamic team. Lihir offers a range of recreational facilities, including a gym, sports club, restaurant, bar, swimming pool, tennis and squash courts, and a 9-hole golf course. For those who enjoy the outdoors, the Lihir fishing and boating clubs provide access to pristine waters and beaches, while our onsite deli and café serve fresh local and imported produce, barista-made coffee, and freshly baked goods.

We are proud to work closely with the local Lihirian community and value its vibrant culture. Through initiatives like our School to Mine program, we offer meaningful employment, training, and development opportunities for Lihirian men and women, as well as scholarships and vocational apprenticeships. We also partner with the New Ireland Province to ensure economic benefits flow directly to the community, strengthening our commitment to sustainable development and positive local impact.

Your Impact

As the Geochemist – Geothermal, you will support the Mine Geothermal Team and broader Mine Technical Services group by delivering geochemical monitoring, analysis and interpretation across geothermal operations. Your work will help manage geothermal risk, optimise well performance and support safe, sustainable geothermal operations at Lihir.

This is a hands-on technical role suited to someone with strong analytical capability, a safety-first mindset and the ability to work collaboratively across geoscience, reservoir, operations and technical teams.

As Part of Our Team, You Will

Key Responsibilities

· Deliver accurate and timely geochemical sampling, analysis and interpretation of geothermal fluids, including steam, brine, condensate and gases.

· Support geothermal well testing programs by analysing geochemical data to assess feed zones, reservoir conditions and well performance.

· Contribute to geothermal risk identification and management through interpretation of fluid chemistry trends and field observations.

· Plan and execute geochemical sampling and fieldwork safely, considering thermal hazards, gas exposure, chemical handling requirements and operational constraints.

· Ensure personnel, visitors and contractors comply with site and geothermal-specific health, safety and environmental requirements.

· Develop and communicate geochemical insights to support weekly and monthly geothermal and mine planning activities.

· Provide guidance and training to technical and operational personnel in geothermal geochemistry, sampling techniques and hazard awareness.

· Identify opportunities to optimise sampling programs, improve data quality and manage laboratory and consumable costs effectively.

Prerequisites For Your Success In This Role