Yopi Hehakaya
Jakarta
Summary
Results-driven professional with extensive experience in mining operations and Technical services. Expert in cost estimation, project evaluation, and providing technical guidance. Committed to driving efficiency and fostering leadership within teams to achieve successful project outcomes.
Overview
20
20
years of professional experience
1
1
Certification
Work History
Group Mining Estimator
BCM International Ghana
Accra
08.2024 - Current
- Prepared detailed cost estimates for mining projects of coal and minerals.
- Reviewed mine plan design and technical reports to identify optimum fleet and labor requirements.
- Analyzed market trends to source competitive pricing for materials and services.
- Supported management in evaluating project risks and cost implications.
- Conducts site visits when necessary to gain better understanding of scope of work prior to submitting an estimate.
- Presented prepared estimates by assembling and displaying numerical and descriptive information.
- Analyzed completed projects to benchmark estimated costs to actual costs, determining reasons for discrepancies.
Principal Mining Estimator
Thiess Contractor
Jakarta
07.2012 - 08.2024
- Prepared detailed cost estimates for mining projects using advanced estimating software.
- Analyzed project specifications and mine plan to identify labor, material, and equipment needs.
- Conducted site visits to assess conditions and gather relevant data for estimating purposes.
- Mentored junior estimators on best practices for cost estimation and project evaluation.
- Obtained bids from vendors and subcontractors to make cost-effective selections.
- Reviews and analyses plans, specifications, proposals, and other documentation to prepare time, cost, materials, and labor estimates.
Mining Engineering Manager
Pamapersada Nusantara
Jakarta
09.2005 - 06.2012
- Oversaw short term and long term mine plan including drill& blast, geotechnic and dewatering.
- Provided technical guidance to the engineers, ensuring all mine designs met safety regulations.
- Led engineering teams to develop innovative mine design for mining operations.
- Managed project budgets and resource allocation to optimize mining operations.
- Conducted mine survey activities to ensure adequate data for mine planning and to have support data for commercial invoice to client.
Education
Bachelor of Science - Applied Statistics
Padjadjaran University
Bandung Indonesia08-2004
Skills
- Cost estimation
- Mine planning
- Mining operation
- Data analysis
- Mining contract & Commercial
- Project / Cost control
Certification
- Integrated Open Pit Mining, Runge Brisbane - Australia
- Open Cut Mining, ITB Bandung - Indonesia
- Project Financial Analysis, ITB Bandung - Indonesia
- Driller for Non Driller, Sandvik - Indonesia
Affiliations
- Tennis & Jogging
- Music
- Traveling
Timeline
Group Mining Estimator
BCM International Ghana
08.2024 - Current
Principal Mining Estimator
Thiess Contractor
07.2012 - 08.2024
Mining Engineering Manager
Pamapersada Nusantara
09.2005 - 06.2012
Bachelor of Science - Applied Statistics
Padjadjaran University
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