KOÇ UNIVERSITY, İstanbul, Turkey                                                                                                      2001-Present
Professor, Department of Industrial Engineering


UNIVERSITY OF PENNSYLVANIA, Philadelphia, Pennsylvania, USA                             2010-2011, Summer 2017
Visiting Professor, Operations and Information Management Department


EURANDOM, Technical University of Eindhoven (TUE), The Netherlands                                 1999-2001
Research Fellow, Stochastic Networks Group


ERASMUS UNIVERSITY, Rotterdam, The Netherlands                                                                          Fall 2000
Instructor, Rotterdam School of Economics