Mohieldin also founded and supervised the Economists' Society at the Faculty of Economics and Political Science.While studying at the University of Warwick (1992–1995), he was an active student as a Coordinator of Graduate Students-Staff Liaison Committee, Department of Economics; Chairman of the Cultural Committee of the General Association of Egyptian Students in the UK; undergraduate Economics tutor; and Development Economics Tutor, and a co-founder of the Economic Society

Dr. Mohieldin was appointed Minister of Investment upon its establishment in 2004.