- 1999-2001, 2002-2003: Informations Systems Lab, Institute of Computer Science, Foundation of Research and Technology Hellas (ICS-FORTH) (Research Assistant).
- 2001-2002: Military Service, Hellenic Air Force
- 2001, 2004: Network Data and Services Research Department, Bell Labs, Lucent Technologies (Summer Internships).
- 1996-1999: Distributed Systems Group (PLEIADES), Institute of Computer Science, Foundation of Research and Technology Hellas (ICS-FORTH) (Research Assistant).
- 1994-2000: Computer Science Department, University of Crete, Greece (B.Sc. 1998/M.Sc. 2000)
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