Dimitrios holds a Diploma in Chemistry (1986) and a PhD (1991) from the University of Fribourg. Between 1991 and 1995 he was a researcher at Kodak Corporate Research Laboratories (Rochester, USA), at the Katholieke Universiteit Leuven (Belgium), and at the EPFL. In 2002, he received an MBA from the Business School of Lausanne. Previously, he worked as a publisher for Elsevier (1995-2000) and co-founded FontisMedia and N!light, two companies providing marketing and communication services (2000-2005).