Mechanical Engineering Studies at Technical University of Braunschweig /  Germany and University of Waterloo in Canada; Ph D. at ETH Zurich in Switzerland

Project and senior engineer at HBI Haerter Consulting Engineers in Switzerland since more than 25 years and expert on ventilation, aerodynamics, tunnel environmental control, safety and mechanical equipment of underground rail and metro systems

Involvement in design of projects such as Gotthard and Loetschberg Base Tunnel in Switzerland, Guadarrama Tunnel in Spain, Stage 1 of Doha Metro, California Highspeed Rail, Delhi Meerut Metro, Line 1 of Metro Panama

Working group member of the Committee for Operational Safety of Underground Facilities (COSUF) of the International Tunnelling Association (ITA)