Prof. Wange started associate and work with Liberty Sparks in different capacity as researcher May 2020. He is Principal Research Associate with The Economic and Social Research Foundation (ESRF) and Research on Poverty Alleviation (REPOA) after serving as Executive Director of both Tanzanian institutions. Previous appointments include Professor of Economics at the University of Dar es Salaam (Tanzania); Senior Research Fellow at the UN University Institute for New Technologies (Netherlands); Policy Adviser in public service management in the President’s Office (Tanzania); and Chair of Daima Associates (Tanzania).