Technical Expert, Geologist Jobs in Indonesia 2026 | Freeport-McMoRan | Papua

Application Status: Check the official careers portal for current vacancy availability.

Verification Status: Vacancy information prepared from the supplied company announcement.

🌍 About Freeport-McMoRan and the Job Opportunity

Freeport-McMoRan is a leading international mining company with significant copper and gold mining operations. Its operations in Papua, Indonesia, include the renowned Grasberg mining complex.

The company is seeking an experienced Technical Expert, Geologist to provide technical leadership and specialist geological expertise to its underground mining operations in Papua, Indonesia.

The Underground Geology Group plays a vital role in supporting existing mining operations and developing new underground mines. The team is responsible for maintaining reliable geological models, improving orebody knowledge, understanding structural and mineralization controls, and supporting safe and efficient underground mine production.

The successful candidate will contribute to geological interpretation, structural modelling, drilling and core logging, geological mapping, grade control, reconciliation, and integration of geological information with geotechnical and hydrology teams.

This opportunity is particularly suitable for senior mining geologists with strong expertise in underground mining, structural geology, 3D geological modelling, and copper-gold ore deposits.

📌 Position Highlights

• Job Title: Technical Expert, Geologist
• Company: Freeport-McMoRan / PTFI
• Location: Papua, Indonesia
• Requisition ID: 147951
• Job Category: Engineering Services
• Industry: Mining / Copper and Gold
• Minimum Experience: 10 Years
• Preferred Experience: 15 Years
• Specialization: Underground Mining Geology
• Benefits: Medical, dental, vision insurance, relocation assistance, and expatriate incentives.

🛠️ Key Responsibilities

1. Underground Geological Expertise

• Provide core underground geological expertise and orebody knowledge across operating and developing mines.
• Support the transition of the Kucing Liar (KL) mine from development into production.
• Ensure reliable geological models, structural interpretations, and geological domain definitions.
• Support mine design, ground support planning, and draw control through geological expertise.

2. Geological Interpretation and 3D Modelling

• Lead and support geological interpretation, modelling, and reconciliation for:
• Grasberg Block Cave (GBC).
• Deep Mill Level Zone (DMLZ).
• Kucing Liar (KL).
• Big Gossan stoping operation.
• Improve geological understanding of structural, lithological, alteration, and mineralization controls.
• Support geological model updates and interpretation of complex underground geological conditions.
• Apply geological knowledge to underground mine production and operational planning.

3. Geological Data Management and Quality Control

• Maintain high standards of geological data quality.
• Oversee drilling, core logging, geological mapping, sampling, and QA/QC processes.
• Integrate geological information with geotechnical and hydrology teams.
• Support reliable geological databases and technical reporting.

4. Technical Leadership and Advisory

• Provide expert geological advice on drilling, logging, mapping, modelling, and interpretation.
• Recommend appropriate infill drilling designs and geological model updates.
• Assess structural and lithological controls affecting cave behaviour.
• Support ore/waste reconciliation and draw control decisions.
• Identify potential geological risks to production and recommend preventive actions.

5. Team Development and Knowledge Transfer

• Assist in developing the Underground Geology Group.
• Coach and mentor national geological staff.
• Promote knowledge transfer and international geological best practices.
• Develop professional relationships with drilling contractors, assay laboratories, and geological technology providers.
• Provide technical recommendations to PTFI leadership and supervisory teams.

🎓 Qualifications and Experience Required

• Bachelor's degree in Geology, Geological Engineering, Earth Science, or an acceptable equivalent qualification.
• Minimum 10 years of professional experience applying geology to underground mining.
• Demonstrated expertise in structural geology, 3D geological modelling, and orebody knowledge.
• Strong understanding of underground mine geology and production.
• In-depth knowledge of structural geology, ore deposit geology, and cave mining.
• Ability to interpret limited and complex geological data and resolve geological uncertainty.
• Ability to identify geological risks and develop preventive strategies.
• Strong analytical, supervisory, and leadership skills.
• Excellent communication, negotiation, and presentation abilities.
• Strong computer skills.
• Fluent in written and spoken English.
• Willingness to learn Bahasa Indonesia.
• Ability to work effectively in a multicultural environment.

⭐ Preferred Qualifications

• Approximately 15 years of experience in underground mining geology.
• Experience with block cave or panel cave mining operations is highly desirable.
• Experience in porphyry and skarn copper-gold deposit systems.
• Professional registration with a recognized geological or engineering professional body is an advantage.

💰 Salary, Benefits and Employment Conditions

According to the supplied vacancy announcement, benefits begin on the first day of employment.

Important Employment Conditions

• The company maintains a drug- and alcohol-free working environment.
• Mandatory pre-employment drug testing applies.
• Ongoing random drug testing may be conducted under company standards.
• The position may be classified as safety-sensitive due to the nature of underground mining operations and associated safety responsibilities.

📩 How to Apply for Technical Expert, Geologist Jobs in Indonesia

Interested and qualified candidates should submit their applications through the official Freeport-McMoRan careers portal.

Applicants are encouraged to review the official job description and eligibility requirements before submitting their applications.

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