1989 PhD (Dr.rer.nat.), Univ. Erlangen-Nürnberg
1993 Habilitation, Univ. Erlangen-Nürnberg
1989-1990 Oberassistent Univ. Zürich
1990-1995 PostDoc Univ. Erlangen-Nürnberg
1994 Heisenberg Fellowship of the DFG
1995-1996 Visiting Professor Univ. Bonn
1996-1997 PostDoc MPI Leipzig
Since 1997 Professor Univ. Bonn
2006 Offer of Chair in Pure Mathematics, Imperial College London (declined)
2015 Offers of Full Professor position of Northwestern University and Penn State University, Distinguished Professor position at University of Kansas (declined)
2007-2010 Managing Director of Institute for Applied Mathematics, Univ. Bonn
2002-2012 Vice Chairman of Collaborative Research Center SFB 611, Bonn
Since 2010 Member of the Board of Directors, Hausdorff Center for Mathematics, Bonn
2012-2019 Coordinator (Managing Director) of the excellence cluster Hausdorff Center for Mathematics, Bonn
Since 2013 Member of the Executive Board of Collaborative Research Center SFB 1060, Bonn
2016 ERC Advanced Grant "Metric measure spaces and Ricci curvature - analytic, geometric and probabilistic challenges"