Stefan Blumenthal started his digital marketing career at mobile.de in Berlin while he was studying Business Administration (focus on Media & Technology Management) in Cologne. As an intern and diploma student in the performance marketing team, he quickly discovered his affinity to digital marketing channels and made the development of an attribution model for mobile.de his thesis topic. His next position was the online marketing team of ImmobilienScout24, where as Business Development Manager he was responsible for traffic and lead generation for new online products. After three years Stefan moved to Scout24 Media where he was building up and leading the Data Driven Advertising and Programmatic business of the entire Scout Group (AutoScout24 and ImmobilienScout24). Since August 2018 he is enjoying his job as Country Manager DACH at zeotap, a data platform based in Berlin. zeotap supports agencies and brands in reaching the right audiences efficiently, segmenting users through deterministic audience insights and making CRM data usable for digital marketing and DMP enrichment.