Professor Tariq Al-Hajj is an academic, researcher and economic expert. He graduated from German universities and has many scientific and academic publications. He is a consultant to many local and foreign institutions. He received many administrative and academic positions and participated in many local, regional and international scientific conferences. He worked in many academic institutions abroad, For many companies and a member of the editorial board of many scientific journals in the  Arab and international universities.

His research interests focus on taxation, fiscal policies, budgets, banking, especially Islamic finance, and investment..