Giannis Tsiliras

Customer Experience Transformation & Data Strategy Director of Cosmote

Giannis Tsiliras

Giannis is the Customer Experience Transformation & Data Strategy Director of Cosmote

He is very passionate about customer experience for building strong brands and sustainable growth.

With a positive energy for change and a human-centered philosophy he drives the customer experience transformation strategy, developing market leading digital products and innovative digital services that empower consumers to live better, greatly improving customer brand loyalty.

He is a data enthusiast and a pioneer in applied artificial intelligence to commercial operations. He led the customer value management activity, transforming sales to a personalized and contextual experience across digital and physical channels, delivering substantial revenue growth and gaining wide recognition both nationally and internationally.

Giannis has a rich career of more than 24 years with diverse and international experience having worked in companies such as Jaguar Cars UK, Weetabix Ltd UK and STET Hellas Telecommunications (currently known as Wind Hellas).

He holds a Degree in Chemical Engineering (Patras, Greece), an MSc in the field of Statistics, Reliability and Quality Mgt (City, UK) and an MBA (Warwick, UK) 

Current Responsibilities

  • Customer Experience Management
  • Digital Products and Mobile Applications Development
  • Data Strategy and Artificial Intelligence Solutions Development
  • Direct Marketing and Campaign Operations Management
  • Digital Transformation & Change Management
  • Distribution Channel Strategy
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