1996 – Now Full Professor at Cairo University, Faculty of Engineering, Mining, Petroleum & Metallurgical Eng. Dept. Egypt.
1997 - 2001 On Loan Full Professor at King Saud University, Faculty of Engineering, Petroleum Eng. Dept., Riyadh, Saudi Arabia
1991 – 1997 On Loan Associate Professor at King Saud University, Faculty of Engineering, Petroleum Eng. Dept., Riyadh, Saudi Arabia.
1991 – 1996 Associate Professor at Cairo University, Faculty of Engineering, Mining, Petroleum & Metallurgical Eng. Dept. Egypt.
1988 – 1991 Part Time Expert, Gulf of Suez Petroleum Company Gupco, Egypt.
1985 – 1991 Assistant Professor at Cairo University, Faculty of Engineering, Mining, Petroleum & Metallurgical Eng. Dept. Egypt.
1978 – 1981 10 months Rig Engineer with BEB, Itag and Preussage companies, FR of Germany, Summer Time.
1977 – 1982 Instructor and Assistant Teacher at Cairo University, Engineering Faculty, Mining. Petroleum and Metallurgical Eng. Dept. Egypt.
1975 – 1977 6 months training in Petroleum Industry, Egypt
Supervised many research projects and postgraduate theses at both Cairo and King Saud Universities and Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt.