The physicist is the team leader of the Systems and Vehicle Validation division. He has worked at DLR in Stuttgart for 25 years, primarily at the Institute of Vehicle Concepts. He has overseen countless national and international projects as a project lead, contributed to over 70 scientific publications, and registered two patents and an invention disclosure. Early in his scientific career, he began looking at hydrogen as a source of energy and fuel cells as a propulsion technology. He is still deeply involved with such technology today in his research into future-oriented, environmentally responsible and climate-friendly mobility. His colleagues have dubbed him 'Master of the Roller' because he played a key role in planning, designing and building the air-conditioned all-wheel roller dynamometer. He knows this one-of-a-kind large-scale DLR facility like no other and looks after it to this day.