Mr. Porfyris has been with the Athens Exchange Group since 1998, as Head of Research & Development of Derivatives (ADEX), Director of Business Development of Derivatives Market (ADEX), Director of International Affairs, Director of the Central Registry, Deputy Chief Operating Officer and Chief Business Development Officer. 

He is representing ATHEX Group in Associations such as the Federation of European Stock Exchanges (FESE), the European Central Depositories Association (ECSDA) and European Association of Clearing Houses (EACH). Previously he has worked with Fimat, Societe Generale Group, and HSBC James Capel as quantitative analyst, derivatives analyst and research and dealing, respectively. 

He is holder of a BS in Physics from the National and Kapodistrian University of Athens, PhD in Electrical Engineering from Edinburgh University and MBA from the Edinburgh University Management School.