István Dér

István Dér is the Leader of Future Energy Home and SME segment management at E.ON, where they have held various roles since 2019, including Leader of Sales and Segment Management (B2C) and Customer Segment Expert. Prior to E.ON, they worked at Invitel from 2011 to 2014, serving as Corporate Service Manager, Junior Corporate Service Manager, and Senior Segment Manager (B2B-SME). István began their career at Vodafone from 2009 to 2010 as a Consumer and Value Management Trainee. They completed a BSc in Trade and Marketing and an MA in Marketing at Budapest Business School between 2006 and 2013.