Tawhidur Rahman was born and grew up in Bangladesh. During his BSS (Sociology) from University of Dhaka, he worked for research organizations like MRC-Mode and AC-Nielsen. In 2009 he worked for UNODC (United Nations Office of Drug and Crime) on care and treatment with especial focus to HIV-TB services for intravenous drug users. Later in the same year he also worked for EAWAG (Swiss Aquatic Research Organization) on the project “Social Acceptance and Use of Arsenic Mitigation Options in Bangladesh”. The urge towards higher studies and interest towards in-depth understanding on public health brought him to Heidelberg. Tawhid conducted research for his MA thesis on one of the most dangerous workplaces: Chittagong ship Scrapping yards. Currently he is working as the Research Coordinator of the project "Liberation and Empowerment: Attaining Dignity and Rights for Sex Workers and their Children in Bangladesh (LEADR)". The project is funded by the AECID and implemented by the Center for Sustainable Development, University of Liberal Arts Bangladesh, together with ActionAid Bangladesh. Tawhid is interested to carry on further studies (PhD) on the issues of climate change, environmental health and environment induced migration.