• June 2021 - Today: Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece                                  Department of Mathematics (Associate Professor)

• August 2017 - June 2021: The Ohio State University, Columbus, Ohio, 43210-1174, USA                      Department of Mathematics (Lecturer)

• August 2014 - August 2017: The Ohio State University, Columbus, Ohio, 43210-1174, USA                   Department of Mathematics (Ross Assistant Professor)

• June 2011 - September 2011: University of Houston, Houston, Texas, 77204-3008, USA              Department of Mathematics (Short-Term Research Scholar)