Okumu joined the School of Economics, Makerere University in 2006 growing through the ranks from Teach Assistant to now Senior Lecturer. He is also an Associate Researcher at the: Economic Policy Research Center, Makerere University and the Centre for Dynamic Macroeconomic Analysis, University of St Andrews. He holds a PhD in Economics of the University of St Andrews (United Kingdom), MA Economics of McMaster University (Canada) and BA Economics of Makerere University (Uganda). Okumu has interest in economic growth and development, firm and household behavior, public finance, corruption and governance. He has peer reviewed publications in; Development Policy Review, African Development Review, South African Journal of Economicsand Journal of Innovation and Entrepreneurship among others.