Johan received his PhD (Sociology) from the University of Cambridge in 2019. His main research interests are in ageing, health, employment, and the life course. Before joining the department of Sociology, Johan held research positions at Duke-NUS Medical School (CARE) and Yayasan Mendaki. His current book project examines life trajectories of older persons in Singapore and explores the social mechanisms and life course factors that contribute to varying health and socioeconomic outcomes in later life.