As Operator Outreach Director at GSMA, Stefan is responsible for the collaboration with Telecom Operators in Europe and the Middle East on all topics related to Telecom APIs. Stefan has spent over 15 years in the telecommunications and media industry, mainly in the areas of international strategic partnerships, corporate governance, mobile internet, and roaming products. He joined GSMA in 2012 and has previously worked as an independent consultant for several operator groups as well as startups. Prior to this, he has built up and managed operator engagement in Vodafone’s global Partner Markets business. Stefan holds a degree in Economics and studied at Universities in Freiburg, Lund, and Paris.