Senior Mine Geologist-Papua New Guinea

Our client is an international mining organisation currently revitalising a long-established gold operation in Papua New Guinea. With a renewed investment strategy, the company is focused on building a high-performance, safety-driven and technologically advanced mining environment. As they expand their exploration and production capabilities, they are strengthening their technical teams to support the next phase of operational growth. They are now seeking an experienced Senior Mine Geologist to join the geology team in Port Moresby, a high-grade underground gold operation in Papua New Guinea.

This is a key site-based role supporting safe, efficient, and profitable underground mining through high-quality geological interpretation, grade control, and short-term mine planning support. The role works closely with the Geology Manager and Deputy Geology Manager and interfaces daily with mine operations, planning, and engineering teams.

Key Responsibilities

The Senior Mine Geologist will be responsible for:

• Delivering accurate and timely underground mine geology and grade control, ensuring ore boundaries, structures, and mineralisation are clearly defined for production.

• Building, updating, and refining 3D geological and structural models using Leapfrog (essential) to support grade control, short-term planning, and reconciliation.

• Integrating diamond drilling, face mapping, channel sampling, and underground observations into geological models in near real time.

• Supporting the design and execution of grade control, infill, and short-range drilling programs, in collaboration with mine planning and drilling teams.

• Interpreting structurally controlled, high-grade vein systems, including identification of ore shoots, plunge controls, and structural offsets.

• Assisting with mine-to-model and mine-to-mill reconciliation, identifying geological drivers of variance and recommending improvements.

• Maintaining high standards of sampling quality, QA/QC, and geological data integrity, consistent with PNG regulatory and company requirements.

• Preparing and reviewing geological inputs for weekly and monthly mine plans.

• Providing geological guidance to operations to maximise recovery, minimise dilution, and manage geological risk.

• Using Deswik (highly regarded) for short-term mine design review, reconciliation, and alignment between geology and planning.

• Supporting resource development activities through interpretation of underground drilling and model updates.

• Mentoring and supervising junior and national geologists, contributing to skills transfer and localisation objectives.

• Ensuring all geological activities comply with PNG statutory, safety, and environmental requirements.

• Contributing to regular reporting on geology performance, reconciliation, and forward work programs.

About You

You will ideally bring:

• A degree in Geology (Honours preferred).

• 8–12+ years’ experience in underground gold mining, ideally within structurally complex, high-grade vein systems.

• Advanced, practical experience with Leapfrog for structural and orebody modelling.

• Working knowledge of Deswik for mine planning and reconciliation (desirable but not essential).

• Strong understanding of underground grade control, face mapping, sampling techniques, and reconciliation workflows.

• Strong communication skills and the ability to work collaboratively with mine operations and planning teams.

• A safety-first mindset and high professional standards.

Why Join 

• Work at a technically challenging, high-grade underground gold operation.

• Be part of a close-knit site team with strong technical leadership.

• Genuine opportunity to influence geological outcomes and mine performance.

• Competitive remuneration and site-based or rotational roster options.

• Exposure to complex structural geology and depth extension potential.

Applications and confidential enquiries are encouraged.