Lead Geologist - Exploration & Asset Evaluation

Nityasa Resources; Daerah Khusus Ibukota Jakarta; On-site; IDR 300,000,000 - 480,000,000; Full time

Job summary

Golden Ace Mining & Energy seeks an experienced Geologist to lead geological assessments, exploration, resource evaluation, and due diligence for assets and acquisitions in Indonesia.

You will plan drilling campaigns, supervise mapping, sampling, and lab testing, interpret data, assess resource potential, and present clear recommendations to management. Frequent travel to sites nationwide is required.

Qualifications

• Bachelor's degree in Geology or Geological Engineering.
• 5–10 years of experience in mineral exploration, mining geology, or resource evaluation.
• Hands-on experience in geological mapping, exploration planning, drilling supervision, and sampling.
• Good understanding of resource estimation and KCMI/JORC reporting.
• Proficient in Surpac, Micromine, ArcGIS/QGIS, or similar software.
• Able to work independently and coordinate external consultants and contractors.
• Strong analytical, report-writing, and presentation skills.
• Willing to travel frequently to mining sites across Indonesia.

Responsibilities

• Conduct geological assessments for potential mining acquisitions and existing mining assets.
• Plan, coordinate, and supervise exploration activities, including geological mapping, drilling, sampling, and laboratory testing.
• Review and interpret geological data, exploration results, and geological models.
• Evaluate mineral resource potential, geological uncertainties, and exploration risks.
• Review and validate geological databases, exploration reports, and mineral resource estimates.
• Conduct geological due diligence for potential mining investments and acquisitions.
• Assess the reliability of geological data, resource estimates, and exploration assumptions.
• Identify geological risks and provide recommendations to support investment decisions.
• Develop exploration work programs, budgets, and implementation schedules.
• Coordinate and supervise geological consultants, drilling contractors, laboratories, and site teams.
• Monitor exploration progress, contractor performance, and project deliverables.
• Support geological evaluations and resource-related activities across existing mining assets.
• Prepare geological evaluation reports, exploration summaries, and technical recommendations.
• Present geological findings, resource potential, and key risks to management.
• Work closely with Mine Engineers, Investment, and Portfolio Management teams to support project evaluations and investment decisions.

Skills

Geology expertise

Exploration planning

Drilling supervision

Data interpretation

Report writing

Travel readiness

Education

Bachelor's degree in Geology or Geological Engineering

Tools

Surpac

Micromine

ArcGIS/QGIS

Job description

Golden Ace Mining & Energy seeks an experienced Geologist to lead geological assessments, exploration, resource evaluation, and due diligence for assets and acquisitions in Indonesia.

You will plan drilling campaigns, supervise mapping, sampling, and lab testing, interpret data, assess resource potential, and present clear recommendations to management. Frequent travel to sites nationwide is required.