Open-Pit Optimization Study
Designed an optimized pit shell for a hypothetical copper deposit using Lerchs-Grossmann algorithm in Datamine.
Datamine NPV Analysis Pit Design
SURVEY STAMP
MACHIKO BINTANG
Mining Engineering - ITNY Yogyakarta
I read rock, design blast patterns, and figure out how to extract what we need without burying the people above the deposit.
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About Me
Why Mining Engineering
I chose mining engineering because I wanted my work to matter -- literally. Every phone, battery, and solar panel starts with something pulled from the ground. Getting that right, responsibly, is the challenge I signed up for.
I believe mining done right powers the energy transition -- from lithium to copper, the materials for a cleaner future come from the ground.
I believe in field work over theory alone -- core logging, structural mapping, and geotechnical testing tell stories that no textbook can.
I believe technology makes mining safer -- automation, data science, and simulation are reshaping what's possible underground.
3+
Years Studying
5+
Industry Projects
2
Field Camps
Education
Academic Background
2022 - Present
Bachelor of Engineering in Mining Engineering
Institut Teknologi Bandung
GPA: 3.8/4.0 · Dean's List (2023, 2024)
Rock Mechanics Mine Planning Mineral Processing Geostatistics Ventilation Surveying
2018 - 2021
High School Diploma (Science Track)
SMA Negeri 1 Jakarta
Graduated with honors · National Science Olympiad participant (Earth Science)
Skills
Tools & Expertise
Software
SurpacAdvanced
DatamineAdvanced
AutoCAD Civil 3DProficient
ArcGIS / QGISProficient
Python (Pandas, NumPy)Proficient
Field Techniques
Core LoggingAdvanced
Geological MappingAdvanced
Mine SurveyingProficient
Geotechnical TestingProficient
Drone SurveyingIntermediate
Certifications & Safety
HS&E ManagementCertified
Emergency ResponseCertified
GIS for MiningCertified
Blasting SafetyTrained
First Aid & CPRCertified
Experience
Industry & Research
Jun 2025 - Aug 2025
Mining Engineering Intern
PT Freeport Indonesia
- •Optimized Grasberg block cave schedules with Surpac-Datamine, reducing dilution by an estimated 8%
- •Analyzed 200+ geotechnical drill logs to flag slope stability risks in the open-pit transition zone
- •Collaborated with ventilation team to model airflow distribution across 3 active production levels
Jan 2025 - May 2025
Undergraduate Research Assistant
ITB Mining Engineering Department
- •Built ML-based ore grade estimator from drill hole data, achieving 90%+ prediction accuracy on validation set
- •Automated variogram modeling and kriging workflows in Python, cutting analysis time by 60%
- •Presented findings at ITB Engineering Research Symposium to 50+ faculty and industry attendees
Aug 2024 - Sep 2024
Field Camp Participant
ITB Geological Field Camp - Bayah, Banten
- •Produced 1:10,000 geological map and 3 cross-sections of Bayah dome over 6-week field program
- •Identified 2 previously unmapped fault zones with implications for local mineral exploration targeting
- •Led a 4-person team to complete structural data collection across 20+ field stations
Projects
Selected Work
Blog
Latest Thoughts
December 15, 2025
The Future of Sustainable Mining Practices
Exploring how the mining industry is evolving to meet environmental and social responsibility standards through innovation and regulation.
sustainability innovation ESG
October 20, 2025 What I Learned from My First Field Camp
Reflections on six weeks of geological mapping, camp life, and hands-on learning in the Bayah dome complex.
field work geology experience
August 5, 2025 Underground vs. Open-Pit: A Comparative Analysis
A technical comparison of underground and open-pit mining methods, their applications, advantages, and limitations.
mining methods open-pit underground
Contact
Get In Touch
Working on a mining project? Have a question about the field? Lets talk -- I'm always open to new conversations.
Connect
Location
Yogyakarta, DIY
Indonesia