Tsagiannis Ioannis

Mr. Ioannis Tsagiannis holds a Diploma from the Department of Primary Education of the National and Kapodistrian University of Athens.

He has served for 23 years in various managerial positions in the customer service sector in telecommunications such as Customer Service Manager, Customer Relationship General Director and Customer Experience Configuration General Director.

He has great experience in the customer management sector, having achieved for a number of years to combine the knowledge of commercial procedures with change management in the sector of organization and management of populous service groups with optimal results.