Hattaya is an international development practitioner and volunteerism leader with over 18 years of experience advancing volunteering as a force for sustainable development and social change. As Technical Lead for Volunteering for Development at VSO International, she provides global leadership on volunteering policy, standards, research, and advocacy across 18 countries in Africa and Asia. With a background in law, she has contributed to volunteering policy and standards at national, regional, and global levels, working with partners and governments across Asia and Africa. She also serves as a guest lecturer at Thammasat University, Thailand.