Evangelos Vayias is Head of Digital and Business Transformation for OTE & COSMOTE in Greece, members of Deutsche Telekom Group. He has broad experience in the IT & Telecoms sector with various engagements both in strategic and business planning as well as in technology architecture and operations. He has designed, deployed and operated large-scale network & IT infrastructures for global connectivity. Thanks to his broad view on business activities and his solid background in advanced digital technologies, he is a fast-thinker to advice on strategic decisions, organisational transformations and business development. He holds a Ph.D in Electrical & Computer Engineering from National Technical University of Athens and is a Cisco-certified Internetworks expert.