Dr Doulaye Koné was born in Côte d’Ivoire. He holds a PhD and MAS in sanitary and environmental engineering; a certificate in environmental communication; MSc. and BSc in Physics and Chemistry. He is currently working as Senior Program Officer, on the Water, Sanitation & Hygiene Program (Global Development) at the Bill & Melinda Gates Foundation. In this capacity, his investment (grant making) portfolio focuses on innovation in science and technology to reinvent the Toilet and its associated business models for sustainable sanitation service delivery.