Co-Founder and CEO, Safetipin
Chief of Urban Practices Branch, UN-Habitat
Director of Institute for Development Studies, Nairobi University
Deputy Executive Director, Clean Air Asia
Head of Sector Project “Sustainable Mobility”, Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH
Chief Executive Officer, Walk21
Secretary General, International Association of Public Transport (UITP)
Chief Knowledge Officer, Institute for Transportation and Development Policy
Director General, International Union of Railways (UIC)