Dewan holds a master's degree in Development Studies from the London School of Economics and Political Science (LSE) in UK and an honour's degree in Economics from Monash University in Australia. He is a proven economic analyst and development practitioner with over fourteen years of solid, diversified and international experience. Prior to joining ADB as a consultant in August 2017, he worked with the Australian Government as a Principal Economic Analyst/Project Manager for seven years. Before that Dewan worked with Monash University as a Research Analyst and Assistant Lecturer for two years.