Stefan Schumacher is Executive Director Digital at G+J e|MS and is responsible for the areas of Digital Media Optimization, Digital Ad Technology and Digital Brand Solutions. Born in 1977, the publishing sales assistant and Bachelor of Communications BAW began his professional career at Ziff Davis in 2000. He subsequently held positions at VNU Business Publications and Vodafone D2 GmbH. In 2010 Schumacher joined the Mobile Team at G+J e|MS as Head of Media Solutions and in 2011 took over the management of the Mobile Unit. Since September 2014 he is in his current position in the crossdigital responsibility for the G+J e|MS departments mentioned above. Since the founding of the Mobile section Schumacher is a close companion of the Arbeitsgemeinschaft Online Forschung (AGOF) as a company representative in the General Assembly. In his role as CEO of the Mobile section he belongs simultaneously to the full Board of AGOF e.V. In addition, Schumacher is Head of the Unit Mobile Advertising (MAC) in the BVDW.