Before Steffen Johann Hubert joined the ProSiebenSat.1 Group, he gained experience in political communication at the German federal level, in environmental protection and nature conservation, and as Head of Media and PR on the advertising/FMCG side. Steffen is now Director of External Affairs & Sustainability at Seven.One Entertainment Group and was also elected Vice Chair of the IAB Europe Sustainability Standards Committee in early 2023 and Chair two years later.