Summary
Overview
Work History
Education
Skills
Timeline
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Martina Sembiring

Martina Sembiring

Strategic Planning And Project Professional
Jakarta

Summary

Results-oriented project planning and maintenance professional with a positive attitude and a strong passion for delivering exceptional outcomes, consistently exceeding stakeholders' expectations. Proven ability to blend technical and business skills to resolve complex issues, refined through experience in the world's leading copper and gold mining companies across Kazakhstan, Mongolia, and Indonesia.

Overview

18
18
years of professional experience

Work History

Planning Advisor, Maintenance & Projects

KAZ Minerals Bozshakol, Copper Mine
02.2016 - Current
  • Performed coordination of strong projects aimed at improving financial performance, operational reliability, safety measures, and risk mitigation to ensure timely and safe project completion within budget constraints, with total value exceeding US$30 million per year.
  • Evaluated a minimum of 100 bids annually from potential contractors and suppliers, thoroughly selecting the most suitable partners based on cost-effectiveness and quality considerations.
  • Handled budgeting, variance analyses, and forecasting.
  • Expertly performed and analyzed project feasibility studies to ensure informed decision-making and successful project outcomes.
  • Led comprehensive analyses for cost optimization, business process re-engineering, and strategic initiatives across entire value chain.
  • Produced detailed reports outlining key issues and proposed solutions on a monthly basis.
  • Provided practical, on-the-job training to junior planners, focusing on maintenance and project planning, scheduling, contract management, and budgeting.
  • Provided support in efficiently managing maintenance shutdowns to minimize disruptions to plant operations.
  • Established and managed Oracle EAM to streamline maintenance planning, analysis, and improvement initiatives, covering backlog review, manpower utilization, and PM compliance.
  • Developed frameworks for seamless maintenance planning, scheduling, coordination, execution, and wrap-up.
  • Oversaw spare parts and tools procurement, optimizing inventory levels, and expediting material shipments through collaborative coordination with maintenance, commercial, logistics, and inventory teams.

Senior Planner, Maintenance & Shutdown

Rio Tinto Oyu Tolgoi LLC, Copper And Gold Mine
11.2011 - 10.2013
  • Introduced innovative metrics-driven approach, allowing for better evaluation of departmental progress against established targets.
  • Optimized organizational processes by effectively managing shutdown schedules, efficient budgeting, allocating tasks and maintaining high standards of safety and quality.
  • Developed annual budgets for maintenance expenditures based on historical data and projected needs, optimizing resource allocation.
  • Managed small to medium-scale project plans, timelines and budgets, with total value exceeding $10 million per year.
  • Evaluated bids from potential contractors and suppliers thoroughly, selecting the most suitable partners based on cost-effectiveness and quality considerations.
  • Provided reporting for forecast analysis and ad-hoc reporting in support of decision-making.
  • Evaluated maintenance program efficiency, provided feedback to leadership, and developed improvement plans aligned with goals.
  • Established and implemented standardized maintenance procedures and methods using SAP Computerized Maintenance Management System (CMMS).
  • Mentored junior planners in the use of advanced planning tools and techniques, fostering a culture of continuous learning within the department.

General Foreman, Strategic Planning

PT Freeport Indonesia, Copper and Gold Mine
01.2010 - 10.2011
  • Directed strategic planning across diverse business areas.
  • Streamlined reporting processes by developing automated tools for tracking KPIs, reducing time spent on manual tasks significantly.
  • Championed a culture of innovation within the organization by encouraging new ideas and supporting continuous improvement initiatives.
  • Managed preparation and execution of contractor services, overseeing no less than 250 manpower per major shutdown, along with coordination of over 50 maintenance service contracts valued at US$ 5 million annually.

Maintenance Planner

PT Freeport Indonesia, Copper and Gold Mine
10.2008 - 01.2010
  • Enhanced asset life cycle with thorough analysis of equipment history, failure modes, and cost factors.
  • Created detailed work orders specifying required tasks, materials, tools, and resources for efficient execution by technicians.
  • Managed preparation and execution of over 20 maintenance service contracts with total cost of approximately US$1 million per annum.
  • Oversaw equipment and parts inventory and tracked shipments to minimize stock shortages.

Project Scheduler, Project Control

PT Freeport Indonesia, Copper and Gold Mine
10.2006 - 09.2008
  • Managed various construction project schedules within Concentrator plants and Underground ore flow facilities (including processing facilities, road, drainage, piping system) using Primavera P6.
  • Reported project progress to project stakeholders, monitored material readiness, and represented construction department to project requestors or area owners.
  • Analyzed project performance data to identify areas of improvement.
  • Scheduled and facilitated meetings between project stakeholders to discuss deliverables, schedules and conflicts.

Student Intern

PT Astra Otoparts Tbk
01.2006 - 02.2006
  • Conducted performance analysis of marketing efforts using return on investment (ROI) method, providing valuable suggestions for optimization.

Student Intern

PT FSCM Manufacturing Indonesia
09.2005 - 10.2005
  • Provided improvement suggestions by analyzing human factors and engineering designs in chain manufacturing processes, aiming to enhance production and resource efficiencies.

Education

MBA - Business Administration And Management

National University of Singapore
Singapore
05.2019 - 2024.01

Bachelor of Engineering - Industrial Engineering

University of Indonesia
Indonesia
07.2002 - 2006.07

Skills

    Project Management

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Timeline

MBA - Business Administration And Management

National University of Singapore
05.2019 - 2024.01

Planning Advisor, Maintenance & Projects

KAZ Minerals Bozshakol, Copper Mine
02.2016 - Current

Senior Planner, Maintenance & Shutdown

Rio Tinto Oyu Tolgoi LLC, Copper And Gold Mine
11.2011 - 10.2013

General Foreman, Strategic Planning

PT Freeport Indonesia, Copper and Gold Mine
01.2010 - 10.2011

Maintenance Planner

PT Freeport Indonesia, Copper and Gold Mine
10.2008 - 01.2010

Project Scheduler, Project Control

PT Freeport Indonesia, Copper and Gold Mine
10.2006 - 09.2008

Student Intern

PT Astra Otoparts Tbk
01.2006 - 02.2006

Student Intern

PT FSCM Manufacturing Indonesia
09.2005 - 10.2005

Bachelor of Engineering - Industrial Engineering

University of Indonesia
07.2002 - 2006.07
Martina SembiringStrategic Planning And Project Professional