Johannes is currently the Digital Health Leader Oncology in Global Medical Affairs at Roche. He has expertise in cancer immunotherapy as well as the diagnosis and treatment of solid malignancies, and has been involved in the strategic development and execution of pre- and post-launch medical affairs with an emphasis on personalised health care. Johannes obtained his PhD in Immunology and Pathology from Cambridge University in 2011. He is published in areas of immunology and oncology. After working in research, Johannes transitioned into management roles, serving as the Medical Manager in Biomarker Oncology and the Senior Medical Manager in Personalised Health Care at Roche before acquiring his current position.