Senior Metallurgist

Key Responsibilities:

• Oversee daily metallurgical accounting — mass balance gold recovery calculations and grade reconciliation — across the CIL/CIP plant.
• Optimize reagent consumption (cyanide lime activated carbon flocculant) to balance processing cost against recovery targets.
• Design and conduct plant metallurgical testwork (bottle roll tests cyanide leach optimization carbon adsorption isotherms) to diagnose and correct recovery losses.
• Lead root-cause investigations into recovery shortfalls elution/regeneration inefficiencies and tailings gold losses. • Develop and monitor metallurgical KPIs (recovery % reagent consumption per tonne carbon activity throughput) and report findings to the Plant Manager / Process Superintendent.
• Support commissioning and ramp-up of new or expanded metallurgical circuits including CIL elution and gravity recovery systems.
• Mentor and coach junior metallurgists and plant metallurgy technicians on process fundamentals and troubleshooting method.
• Ensure metallurgical operations comply with environmental HSE and International Cyanide Management Code (ICMC) standards.
• Coordinate cross-functionally with Mine Geology on ore variability Maintenance on plant reliability and the Laboratory on assay QA/QC.
• Support annual budget planning for metallurgical and process consumables.

Candidate Requirements:

• Bachelor's degree in Metallurgical/Extractive Engineering Chemical Engineering or a related field; a Master's degree is preferred but not mandatory.
• Minimum 8 years of experience in gold processing metallurgy including at least 3 years in a senior or supervisory metallurgist capacity.
• Deep hands-on knowledge of CIL/CIP circuits elution/regeneration gravity gold recovery and cyanide leaching chemistry.
• Demonstrated experience in metallurgical accounting and mass balance reconciliation.
• Strong analytical and root-cause troubleshooting skills applied to plant performance and recovery issues.
• Experience with International Cyanide Management Code (ICMC) compliance is highly preferred.
• Familiarity with plant control/SCADA data and metallurgical reporting tools (e.g. LIMS PI Excel-based metallurgical models).
• Willingness to work on remote site rotation (Indonesian mining regions).
• Fluent in Bahasa Indonesia; working proficiency in English (written and spoken) required for reporting to international stakeholders.

Required Skills:

Carbon-In-Leach Gold Processing