- Managing Director, The Sudd Institute, Juba, South Sudan (2023 – Jan 2025).
- Dean of Faculty and Academic Affairs, Africa Center for Strategic Studies, National Defense University, Washington, USA (2019 – 2022).
- Professor of African Security Studies, ACSS, NDU, Washington, USA (2017 – 2022).
- Associate Professor of Economics, University of Juba, South Sudan (2014).
- Senior Economist, World Food Programme (WFP), Rome, Italy (2017).
- Director, Center for Peace and Development Studies, University of Juba (2014 – 2015).
- Resident Fellow, Carr Center for Human Rights Policy, Harvard Kennedy School (2012 – 2013).
- Visiting Fellow, IDS, University of Sussex (1999).
- Global Fellow, Peace Research Institute Oslo (PRIO), Norway (2016 – 2022).
- Minister of Presidential Affairs, Government of Southern Sudan (2006 – 2010).
- National Minister of Cabinet Affairs, Government of Sudan (2010 – 2011).
- Senior Economist, World Bank, Juba (2005 – 2006).
- Chairman of National Economic Commission and Managing Director, Nzara Industrial Complex, Yambio (1990 – 1994).
- Director and Founder, New Sudan Center for Census, Statistics and Evaluation (1994 – 2004).
- Teaching Assistant, University of Gezira, Sudan (1984).
