Stefano Ruffini graduated in telecommunication engineering from the University of Rome La Sapienza and works as Strategic Technology Manager at Calnex Solution. Stefano is currently contributing to ITU-T SG15 Q13 (serving as Rapporteur), IEEE1588, and other relevant synchronization standardization bodies and forums. He has published several international journal papers and delivered talks at various conferences. He is member of the Steering Group of the International Timing and Sync Forum and a member of the Steering Committee of the Workshop on Synchronization in Telecommunication Systems.