This curriculum vitae summarizes the professional experience of Abraham Koster, a Dutch national with over 30 years of experience in rural infrastructure projects in Asia, Africa, and Europe. He has extensive experience managing irrigation projects, rural water supply projects, and building the capacity of water user groups. Currently he is the Manager of Irrigation and Water Resources Management for the Cambodia Agricultural Value Chain Program, focusing on improving sustainable access to irrigation. Previously he has held positions as an irrigation specialist, water users association specialist, general manager of an engineering consulting firm, and rural engineer for various development projects in Cambodia, Sri Lanka, Laos, and Africa.