Meet Our Leaders

Siew Wee is the Group Finance Manager, responsible for overseeing our group financial operations.

Siew Wee joined the team in April 2017 and is based in our Singapore Group Head Office. Siew Wee manages all areas of Group finance and analysis for the purpose of maximizing financial and operational performance. Prior to joining DBL-DBSA, Siew Wee was an Assistant Accountant at a listed Oil & Gas organisation and mainly focused on group consolidation accounts.

Mark is an experienced business leader and Director who creates a clear strategic view for businesses, establishing strong relationships with management teams to deliver outstanding returns to shareholders and service excellence to customers.

Mark has spent much of his 35-year career in the logistics and information management sectors in New Zealand, Australia and the United Kingdom. He also holds Executive Director and major shareholder positions in a number of businesses operating in the energy sector as well as bringing start up technologies to market.

In his current position with DBSA, Mark takes overall responsibility for the groups’ strategic IT initiatives (including our Digital Hub technology).

Dr. Krees Castaneda is an executive coach and a transformational leader who has grown successful companies over the last two decades. She comes with a wealth of experience in talent acquisition, business process outsourcing, consulting, and strategic management across a wide range of industries across the globe, including healthcare, oil and gas, construction, telecommunication, logistics, banking and finance, and shared services.

With her experience in talent acquisition and logistics, Krees has shifted across various industries, learning the ropes from the ground up and showing that one can lead a company to success through a strong business sense, a deep understanding of the business, and a winning team as partner and co-creator of the future of the business.

Krees’s background in logistics stems from her years of experience with DHL, where she championed the role in quality management. She was responsible for standardizing hub and gateway operations processes and setting up the quality management system in the Asia Pacific and Middle East operations, enabling DHL to be the first company to achieve a harmonized quality system under one ISO 9002 certification.

With Krees’s leadership, ASC Global Recruitment became the no. 1 recruitment company deploying nurses and allied health professionals to the UK. Similarly, with her at the helm, Drake International Philippines became a major player in the commercial recruitment industry, serving clients in AP, EMEA, and North America.

Within three years of running Drake Business Services Asia (logistics and managed services), she turned the company into a powerhouse in the digital document management space, leading enterprises and multinational companies through their innovation journey.

Krees has a Doctorate degree in business administration, specializing in labor migration and predictors of brain drain, and how to manage this phenomenon. She aims to promote human capital formation and equitable growth in sending and receiving countries.

Krees is an alumna of Emmanuel College-University of Cambridge, Harvard Business School, and Paris School of Business.

With a decade of experience in Finance and Accounting, Kriztia specializes in strategic planning and financial management. In addition to her financial expertise, she oversees administrative functions—managing office operations, coordinating administrative support, and leading the administrative team to support the company’s goals. Her comprehensive approach ensures both financial stability and operational efficiency, driving the organization towards its objectives.

Kriztia joined the Finance Department of DBSA in August 2019. She earned her Bachelor’s Degree in Accountancy from the University of the Philippines and passed the Certified Public Accountant Board Examination in October 2015. She began her career in the government sector, where she was assigned to the Accounting and Treasury Department.

Luisa is a licensed chemist, professional teacher, and a highly skilled expert in quality assurance and compliance. With a solid background in research, patents, and the manufacturing industry, she holds a Bachelor’s Degree in Chemistry from Pamantasan ng Lungsod ng Maynila and has completed coursework for a Master’s Degree in Chemistry at De La Salle University.

Before joining Drake Business Services Asia Philippines in 2023, Luisa gained valuable experience in documentation, ISO audits, and working alongside regulatory bodies, which has been vital in ensuring strict adherence to industry standards and regulations. This wealth of experience laid the foundation for her impactful role at DBSA.

As Quality Assurance and Compliance Manager, Luisa plays a critical role in ensuring that DBSA consistently delivers high-quality services to clients. She ensures that all departments comply with rigorous quality standards and regulatory requirements while promoting a culture of continuous improvement throughout the organization. Luisa is also dedicated to quickly addressing quality issues, non-conformances, and customer complaints, ensuring minimal disruption, and maintaining high customer satisfaction. Through monitoring and analyzing key quality metrics and performance indicators (KPIs), she drives initiatives aimed at enhancing operational efficiency and service excellence.

Additionally, Luisa serves as DBSA’s Data Protection Officer, overseeing the development and implementation of data security and privacy protocols. She ensures compliance with data protection regulations and promotes awareness of the Data Privacy Act, further strengthening the company’s commitment to safeguarding sensitive information and upholding its integrity.

Apet Sioson is a dynamic and results-oriented Operations Manager for Logistics at DBSA Philippines, specializing in the end-to-end management of courier, warehouse, inventory, and transportation services. With 12 years of proven expertise in real estate, property, facilities, and general administration management, he brings a strong foundation in logistics and operational strategy. Apet is highly focused on delivering customer-centric solutions and fostering long-term client relationships.

His deep understanding of compliance frameworks—including Occupational Safety and Health (OSH), the Department of Environment and Natural Resources (DENR), and ISO standards—has enabled him to lead numerous regulatory initiatives, ensuring seamless adherence across operations. He is also passionate about sustainability and continuous improvement, driving programs that reduce environmental impact and optimize resource use.

Apet has successfully led high-impact projects involving construction, renovation, and system integration, achieving notable gains in efficiency and cost-effectiveness. He played a pivotal role in system development and migration efforts, contributing to technological advancement and streamlined operations.

Known for cultivating a culture of innovation and continuous improvement, Apet empowers his team by promoting collaboration, resilience, and professional growth. His leadership ensures not only operational excellence but also a shared commitment to delivering value to both internal and external stakeholders.

Jehan Bastians has dedicated over two decades to transforming the Business IT sector, skillfully bridging the gap between advanced technology and practical business outcomes. His journey began at Suntel in Colombo—a wholly owned subsidiary of Telia of Sweden—where he immersed himself in IT solution design and implementation. This foundational role ignited his passion for crafting impactful technological solutions that drive growth and efficiency.

Embracing his entrepreneurial spirit, Jehan ventured into the realms of workflows and integrated document management by establishing his own business in Colombo. He designed and developed a groundbreaking workflow and Document Management System (DMS) platform, which is now a vital asset for multiple commercial banks and large corporations. This platform has transformed customer-facing processes and empowered employees by streamlining workflows and enhancing productivity.

Currently, Jehan serves as the Solutions Architect for Drake Business Logistics and Drake Business Services Asia. In this role, he focuses on delivering innovative logistics and workflow solutions to clients across the Asia-Pacific region. He is committed to understanding the unique challenges businesses face in this dynamic market and providing tailored solutions that drive operational excellence.

Jehan believes in the transformative power of technology when thoughtfully integrated into business strategies. His approach is holistic, ensuring that solutions not only meet technical requirements but also contribute to the broader business goals.