He is Director Research and Development with the NGO War Child Holland, in Amsterdam, the Netherlands and a Senior Lecturer at the Centre for Global Mental Health at King’s College London. His work focuses on the development, implementation and evaluation of psychosocial and mental health care systems in low and middle income countries, especially for children in adversity and in fragile states. He is co-founder of, and senior advisor to, TPO Nepal, a mental health NGO in Nepal, where he has worked between 1999 and 2011.