• Supervisor of measurement, assessment, and evaluation unit, Faculty of Pharmacy, University of Tabuk, Tabuk, Kingdom of Saudi Arabia (May 2021 to date) • Supervisor of FPUT strategic plan implementation, Faculty of Pharmacy, University of Tabuk, Tabuk, Kingdom of Saudi Arabia (May 2021 to date) • Professor of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Tabuk, Tabuk, Kingdom of Saudi Arabia (March 2021 to date) • Head of Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt (August 2018 – March 2021) • Professor, Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt (March 2018 - to date) • Assistant Professor, Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt (July 2012- March 2018) • Member, “Scientific Council of King Faisal University, (Two terms, starting April 2010) Selected unanimously by King Faisal University Council and approved by Saudi Minister of Higher Education in both terms • Member, “Translation, Authorship and Publication Center of King Faisal University (Two terms, starting January 2010) Selected unanimously by King Faisal University Council • Associate Professor, Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, KSA (September 2006- July 2012) • Lecturer, Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University (October 2001- September 2006) • Part-time Lecturer, Department of Pharmaceutical Chemistry, School of Pharmacy, Misr International University (MIU), Obour City, Egypt (September 2003 to September 2005) • Postdoctoral Fellow, Department of Medicinal Chemistry, School of Pharmacy, Medical College of Virginia, Virginia Commonwealth University, Virginia, USA funded by the American university (October 2000- October 2001) • Lecturer, Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University (October 1998- October 2000) • Teaching Assistant Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University (April 1998 - October 1998) • PhD research scholar, School of Pharmacy, Medical College of Virginia, Virginia Commonwealth University, Virginia, USA (April 1996 to April 1998) • Teaching Assistant Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University (March 1995- April 1996) • Demonstrator Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University (September 1990- March 1995)