He has served for 33 years at the Faculty of the Technical Education at Firat University/Turkey. Professor Varol is the founder of the Department for Electronics and Computer Science Education and Communication Faculty at Firat University. He was also founder of Siirt University that was established in 2007. He was a member of National Informatics Committee that organized distance education in whole country under supervising of Higher Education Council (YOK) of Turkey between 1999 and 2002. He is a member of Executive Board of Turkish Informatics Association and a member of ACM (Association for Computing Machinery). He was in Germany, in the UK and in the US as a researcher, as a visiting professor for more than 8 years in total. He taught informatics technology courses at West Virginia University between 2004 and 2005. He is a still professor at the Department of Software Engineering of Technology Faculty at Firat University.