Stefanus Rantetondok
Associate Expert Facilitator | Lean Six Sigma Master Black Belt | Operational Excellence & Continuous Improvement | Strategic Facilitation | Quality Management, Productivity & Cost Optimization | Data-Driven Decision Making
Stefanus Rantetondok is a strategic and hands-on professional in Productivity, Quality, and Continuous Improvement with over 20 years of experience across manufacturing and FMCG industries. He has built his career driving large-scale Operational Excellence initiatives across multiple Asian countries, including China, Malaysia, Vietnam, and Indonesia. Currently, he serves in a senior regional leadership role at Owens-Illinois Inc. (O-I), where he leads quality strategy and implementation across several countries, aligning operational performance with global standards and business objectives.
Throughout his career, Stefanus has demonstrated a strong track record in delivering measurable business impact. Among his key achievements is successfully reducing the Cost of Poor Quality (COPQ) by 40% across Asia operations through structured quality training programs and upstream operational improvements. He has also led multiple Lean Six Sigma initiatives that significantly improved efficiency and reduced operational costs, including projects that cut energy consumption by up to 30% and optimized inventory and working capital across regional operations. His ability to connect quality, cost, and operational performance has made him a trusted leader in driving sustainable business results.
Stefanus’ expertise lies in implementing Lean Six Sigma, Total Quality Management, and Total System Cost frameworks to build a culture of continuous improvement and data-driven decision-making. He is not only a practitioner but also a developer of people—having trained, coached, and certified more than 60 Green Belt professionals across Asia. His approach combines strong analytical rigor with practical execution, ensuring that improvement initiatives are embedded into daily operations and sustained over time. He is particularly known for fostering high-performance teams that are capable of solving problems systematically and delivering consistent results.
He holds a Master’s degree in Finance and Financial Management from Universitas Pelita Harapan and a Bachelor’s degree in Agronomy from Institut Pertanian Bogor. His professional certifications include Lean Six Sigma Black Belt from George Group (Accenture) and Lean Six Sigma Master Black Belt from O-I Headquarters in the United States, along with certifications in Performance Management and Talent Development from Korn Ferry. He has also undergone extensive global training in quality systems, manufacturing excellence, and leadership development.
Driven by a passion for coaching and mentoring, Stefanus continues to help organizations and individuals build strong problem-solving capabilities, enabling them to make better decisions, improve performance, and achieve sustainable growth in an increasingly competitive environment.
About
Stefanus Rantetondok is a strategic and hands-on professional in Productivity, Quality, and Continuous Improvement with over 20 years of experience across manufacturing and FMCG industries. He has built his career driving large-scale Operational Excellence initiatives across multiple Asian countries, including China, Malaysia, Vietnam, and Indonesia. Currently, he serves in a senior regional leadership role at Owens-Illinois Inc. (O-I), where he leads quality strategy and implementation across several countries, aligning operational performance with global standards and business objectives.
Throughout his career, Stefanus has demonstrated a strong track record in delivering measurable business impact. Among his key achievements is successfully reducing the Cost of Poor Quality (COPQ) by 40% across Asia operations through structured quality training programs and upstream operational improvements. He has also led multiple Lean Six Sigma initiatives that significantly improved efficiency and reduced operational costs, including projects that cut energy consumption by up to 30% and optimized inventory and working capital across regional operations. His ability to connect quality, cost, and operational performance has made him a trusted leader in driving sustainable business results.
Stefanus’ expertise lies in implementing Lean Six Sigma, Total Quality Management, and Total System Cost frameworks to build a culture of continuous improvement and data-driven decision-making. He is not only a practitioner but also a developer of people—having trained, coached, and certified more than 60 Green Belt professionals across Asia. His approach combines strong analytical rigor with practical execution, ensuring that improvement initiatives are embedded into daily operations and sustained over time. He is particularly known for fostering high-performance teams that are capable of solving problems systematically and delivering consistent results.
He holds a Master’s degree in Finance and Financial Management from Universitas Pelita Harapan and a Bachelor’s degree in Agronomy from Institut Pertanian Bogor. His professional certifications include Lean Six Sigma Black Belt from George Group (Accenture) and Lean Six Sigma Master Black Belt from O-I Headquarters in the United States, along with certifications in Performance Management and Talent Development from Korn Ferry. He has also undergone extensive global training in quality systems, manufacturing excellence, and leadership development.
Driven by a passion for coaching and mentoring, Stefanus continues to help organizations and individuals build strong problem-solving capabilities, enabling them to make better decisions, improve performance, and achieve sustainable growth in an increasingly competitive environment.