Professor of Sociology, University of Bielefeld, Since February 1973
Director of the Center for Interdisciplinary Studies (ZiF), University of Bielefeld, April 1989 - October 1994
Chairman, Graduate College "Genese, Strukturen und Folgen von Wissenschaft und Technik", 1992 - 2009
Director, Institut für Wissenschafts- und Technikforschung (IWT), University of Bielefeld, 1993 – 2009
Visiting professor University of Stellenbosch, South Africa, 1996 - 2015
Chairman, Commission of the Austrian Agency for Research Integrity, 2011 - 2015
Distinguished Affiliated Professor at Technische Universität München (TUM) and Fellow of the Institute of Advanced Study (IAS) Technical University, Munich (TUM), 2012 -
South Africa Research Chair for Science Communication, Stellenbosch University, 2015- 2020.
Selected Fellowships, Honors, and Awards
Berlin-Brandenburg Academy of Sciences (BBAW), Class of Social Science, since 1997
Akademie für Technikwissenschaft – acatech since 2008
Fellow, Wissenschaftskolleg zu Berlin, 1983/84
Visiting Scholar, Harvard University, Department of History of Science, 1984 - 1985
Visiting scholar, Ghetty Research Institute 2000
Humboldt South Africa Award 1998
Editorial Functions
Editorial Board and Managing Editor, International Yearbook Sociology of the Sciences, Springer
Editorial Board, 'Scientometrics', 1981-1995
Editorial Board, Science, Technology and Human Values, 1985-1993
Wissenschaftlicher Beirat, Zeitschrift für Soziologie, Enke Verlag, Stuttgart
Mitglied des Editorial Board 'Minerva', 1995 – 1999