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Geologist Specialist

TechConnect

South Kalimantan, Kalimantan, IDContractPosted Feb 23, 2026

Job description

Job Description : Compile and validate exploration data provided by Wellsite Geologists. Develop and update geological models on a quarterly basis using drilling, mapping, and sampling data. Perform monthly and quarterly reconciliations between geological models and actual mined data (model vs. actual). Prepare internal exploration progress reports for management.

Provide external reporting, including quarterly production reports and RKAB documentation. Monitor geological conditions within the pit, including anomalies in seam thickness, fault identification (e.g., washouts), and mined-out zones. Conduct routine in-pit mapping activities such as measuring seam thickness, strike and dip, fault mapping (if any), and coordinate with surveyors or use total station (TS) for data collection.

Inspect and observe exposed coal or nickel seams to confirm mine-out status and geologic consistency. Monitor discrepancies between actual coal or nickel seam conditions and geological models, particularly in relation to thickness variance, coal quality, dip and strike, and the presence of faults.

Requirements

Minimal bachelor degree in Geological Engineering Minimal 3 years of experience as a Geologist Modelling Have POP certified Able to build geological model Having a good knowledge about coal geology and coal geological modelling Experience to use KCMI 2017 or SNI 5015:2019 Experience to use Software Minescape and Arcgis

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