Geologist - Modelling

Working Location: Site Based - West Sumbawa

Roster Schedule: 4:2 (4 weeks on - 2 weeks off)

Some of your duties will include:

• Develop, maintain, validate, and reconcile geological, resource, and ore control block models.

• Support mineral resource estimation and provide modelling inputs for mine planning and production activities.

• Maintain accurate and up-to-date resource and ore control models through the integration of drilling, sampling, and production data.

• Conduct regular reconciliation between resource models, ore control models, mine production, and mill performance, identifying opportunities for model improvement.

• Collaborate closely with Mining, Mill, and Technical Services teams to support production forecasting, ore blending, and reconciliation initiatives.

• Liaise with the Chief Geologist – Modelling on drilling programs, geological interpretations, resource development strategies, and modelling methodologies.

• Supervise and review geological and geotechnical logging activities associated with infill and resource definition drilling programs.

• Apply geostatistical techniques and industry best practices to improve model confidence and support operational decision-making.

• Provide technical support for ore control activities, including dig block validation, ore/waste boundaries, and production reconciliation.

• Promote a strong safety culture, efficient resource utilization, continuous improvement, and effective cross-functional teamwork to maximize mineral resource value.

What skills and experience do you need?

• Bachelor’s degree in Geology, Geological Engineering, or Mining Engineering.

• Minimum 2–5 years of experience developing and maintaining geological, resource, and ore control models, including reconciliation and production support activities within an open-pit mining operation

• Experience with ore control modelling and mine-to-mill reconciliation processes.

• Proficiency in geological modelling and mining software such as MineSight, Supervisor, or equivalent.

• Strong knowledge of geological databases, QA/QC procedures, geostatistics, mineral resource estimation, ore control, and reconciliation methodologies.

• Strong analytical, problem-solving, and data interpretation skills.

• Effective communication and stakeholder management skills, with the ability to work within multidisciplinary technical teams.

• Understanding reporting standards and mining industry best practices.

• Excellent communication skills in English both verbal and written and computer literate.

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