Stefan is fairly new to the topic of risk and assurance, having joined the Group Customer Finance team of Deutsche Telekom in June 2017.   Stefan started his professional career in Deutsche Telekom in 2006 as a trainee in retail sales. From 2009 – 2011 he was working for Telekom’s service unit in Dortmund and Düsseldorf to support and consult private and business customers. Before he joined Group Customer Finance, Stefan was working in the international mobile sales and service unit of DT, namely being responsible for the international revenue reporting and coordinating the collection with DT Accounting.   Stefan started his studies in economics in 2014 and will graduate in 2018.