1-From August 2006 to now:
Head of the Mechanical Power Engineering Department , Faculty of Engineering , Ain Shams University.
2-From February 2003 to July 2006 :
Dean of the Faculty of Engineering, Misr University For Science & Technology, 6TH OF OCTOBER CITY, EGYPT.
3-From March 1999 to February 2003 :
Professor of Heat Transfer, Heat Engines, thermodynamics and Ref. & Air Conditioning at Mechanical Power Engineering Department, Faculty of Engineering, Ain Shams Univ., CAIRO, EGYPT.
4- From December 1991 to March 1999 :
Associate Professor of Heat Transfer, Heat Engines, thermodynamics and Ref.& Air Conditioning at Mechanical Power Engineering Department, Faculty of Engineering, Ain Shams Univ., CAIRO, EGYPT.
5- From December 1989 to December 1991 :
Assistant Professor of Heat Transfer, Heat Engines, Thermodynamics and Ref. Air conditioning at Energy & Automotive Department, Faculty of Engineering, Ain Shams University, CAIRO, EGYPT.
6- From June 1989 to December 1989 :
Associate in Research at Mechanical and Materials Engineering Department, Washington State University, U.S.A.
7- From October 1986 to June 1989 :
Asst. Professor of Heat Transfer ,and Thermodynamics, at Energy &Automotive Department, Faculty of Engineering , Ain Shams University, CAIRO, EGYPT.
8- From December 1984 to October 1986 :
Associate in Research at the Department of Engineering, University of Reading, England, UK.
9- From October 1975 to December 1984 :
Teaching Asst. at Energy and Automotive Department, Faculty of Engineering, Ain Shams University, CAIRO, EGYPT.
