Professor of Sanitary & Environmental Engineering, Faculty of Engineering, Cairo University, Egypt, 2009.
Associate Professor of Sanitary & Environmental Engineering, Faculty of Engineering, Cairo University, Egypt, 2004.
Civil / Environmental Engineering, Faculty of Engineering, Cairo University, Egypt, 1998 (Optimization of High F/M Biological Stage Treatment of wastewater By Adding Flocculants).
Civil / Environment Engineering, Faculty of Engineering, Cairo University, Egypt, 1994 (Reliability Based Optimization Model for Water Distribution System).
Civil engineering, Faculty of Engineering, Cairo University, Egypt, 1991.