1. Ondokuz Mayıs University, 1998-2002 and 2006-2014.
2. Hacettepe Univesity, 2002-2006.
3. Marmara University, 2014-2015.
4. Isık University, 2014-2015. (Part Time)
5. Avrasya University, 2015-2018 (Part Time)
6. Giresun University, 2015-
1. University Politehnica of Bucharest, Romania, 27 May 2013 – 01 June 2013, by Erasmus Program.
2. University of Split, Department of Mathematics, Crotia, 12-15 March 2019, by Erasmus+ Program.
3. Lancaster University, Marketing and Forecasting Research Center, UK, September 2019- April 2020, Tubitak 2219, Postdoctoral Position.