At the Department of Animal Husbandry and Wealth development, Faculty of Veterinary Medicine, Alexandria University:

                        Demonstrator of Animal behavior and management: 15/10/1989.

                        Assistant Lecturer of Animal behavior and management: 17/3/1993.

                        Lecturer of Animal behavior and management: 21/5/1998.

                        Associate Professor of Animal behavior and management: 30/4/2003.

                        Professor of Animal behavior and management: 26/4/2008.

At the Department of Animal Husbandry and Wealth development, Faculty of Veterinary Medicine, Alexandria University, Damanhur branch:

                        Professor of Anatomy and Embryology: 20/7/2008.

                        Head of the department of Anatomy and Embryology: 23/3/2009.

At Faculty of Veterinary Medicine, Alexandria University, Damanhur branch:

                        Vice Dean for Community services and environmental development Affairs since 24/4/2009.

                        Head of the department of Animal Husbandry and Wealth development, since 23/4/2009.

At Alexandria University, Damanhur branch:

Executive manager of Information and communication training Center (ITC), Alexandria University, Damanhour Branch since December 2008.

At Damanhour University

§  Dean of faculty of Veterinary Medicine since 24/4/2012

§  Executive manager of Information and communication training Center (ITC), Damanhour University.

§  Chief Information officer, Damanhour University.

§  Organizer of assessment of higher education learning outcomes (AHELO), Damanhour University.

§  Manger of development projects units, Damanhour University.