Head of the Signal Processing and Communications Lab, Computer Engineering and Informatics Department, University of Patras
Director of the Signal Processing & Communications Research Unit, Computer Technology Institute & Press "Diophantus"
Senior Member of the IEEE
Chairman of the Greek Chapter of the IEEE Signal Processing Society (2010 – today)
Associate Editor, IEEE Signal Processing Letters (2009-2012)
Associate Editor, EURASIP Journal on Applied Signal Processing(2004 – today)
Associate Editor, IEEE Transactions on Signal Processing (2005-2008)