Mining Geologist Supervisor (Nickel Mining)

PT Arnawarma Mineral Jaya; Malili; On-site; IDR 2,400,000,000 - 3,600,000,000; Full time

Job summary

PT Arnawarma Mineral Jaya (AMJ) seeks a senior geologist to lead a field team in mining geology duties, including mapping, logging, sampling and data management. You will drive ore body interpretation and reporting to senior management in a fast-growing Indonesian operation.

The role requires 5–7 years in mining geology with supervisory experience, plus strong knowledge of nickel mineralization and grade-control procedures. English is essential, with Indonesian language desirable.

Qualifications

• Degree in Geology, Mining Geology or related earth science.
• 5–7 years in mining geology with 2–3 years in supervision.
• Experience in nickel mining or hard rock mining environments.
• Strong knowledge of ore body geology and grade control.
• Proficient with geological software and databases.

Responsibilities

• Supervise and lead a team of geologists and technicians in daily mining geology tasks.
• Conduct geological mapping, core logging and sample analysis to characterise ore bodies.
• Prepare and maintain geological databases and models.
• Monitor ore grade control and align operations with estimates.
• Collaborate with mining engineering to optimise pit design and extraction sequences.
• Estimate resources and perform reserve calculations using standard methods.
• Ensure compliance with international standards and company protocols.
• Identify geological risks and advise operations management.
• Maintain records and produce regular geological reports for management and regulators.
• Mentor junior staff and promote continuous improvement.
• Ensure environmental regulations and EMS compliance.

Skills

Geology

Mining Geology

Team leadership

Communication

English proficiency

Education

Geology degree

Tools

Geological software

Resource estimation tools

Database software

Job description

Supervise and lead a team of geologists and geological technicians in day-to-day mining geological activities

Conduct geological mapping, core logging and sample analysis to characterise ore bodies and assess ore quality

Prepare and maintain geological databases, including drill hole information, assay results and geological models

Monitor and report on ore grade control, ensuring mining operations remain aligned with geological estimates and quality standards

Collaborate with mining engineering teams to optimise pit design and extraction sequences based on geological conditions

Undertake resource estimation and reserve calculations using industry-standard software and methodologies

Ensure all geological work meets international standards and company protocols for accuracy and compliance

Identify and mitigate geological risks that may impact mining operations, safety and project timelines

Provide technical geological advice to operations management and contribute to operational planning meetings

Maintain accurate records and produce regular geological reports for senior management and regulatory authorities

Mentor and develop junior geological staff, fostering a culture of continuous improvement and professional development

Ensure all geological activities comply with environmental regulations and company environmental management systems

What we're looking for

Degree in Geology, Mining Geology or a related earth science discipline

Minimum 5-7 years of professional experience in mining geology, with at least 2-3 years in a supervisory or leadership capacity

Proven experience in nickel mining operations or hard rock mining environments

Strong knowledge of ore body geology, grade control procedures and geological modelling techniques

Proficiency with geological software packages, including resource estimation tools and databases

Excellent understanding of mining engineering principles and their application to operational planning

Demonstrated ability to supervise and manage technical teams effectively

Strong communication skills with the ability to present technical information clearly to diverse audiences

A solid commitment to safety management and environmental compliance

Experience working in tropical climates and remote mining locations is advantageous

Familiarity with Indonesian mining regulations and operational standards is preferred

Proficiency in English is essential; Indonesian language skills are desirable

Unlock job insights

Your application will include the following questions:

• Which of the following statements best describes your right to work in Indonesia?
• What's your expected monthly basic salary?
• Which of the following types of qualifications do you have?

PT Arnawarma Mineral Jaya (AMJ) is a fast-growing company in Indonesia with an extensive international experience in the commodity market.

Fields of interest of AMJ are mineral mining, smelting, transshipments and sea transportation.

The company currently holds five nickel mining concessions in Indonesia and actively implements global scale plans for mineral processing.

PT Arnawarma Mineral Jaya (AMJ) is a fast-growing company in Indonesia with an extensive international experience in the commodity market.

Fields of interest of AMJ are mineral mining, smelting, transshipments and sea transportation.

The company currently holds five nickel mining concessions in Indonesia and actively implements global scale plans for mineral processing.

PT Arnawarma Mineral Jaya (AMJ) is a fast-growing company in Indonesia with an extensive international experience in the commodity market.

Fields of interest of AMJ are mineral mining, smelting, transshipments and sea transportation.

The company currently holds five nickel mining concessions in Indonesia and actively implements global scale plans for mineral processing.