11.11.2002: PhD defense (referees: Peter Bürgisser, Friedhelm Meyer auf der Heide, Klaus Weihrauch)
2003-2004: Post-doc in DFG Graduiertenkolleg 693 "PaSCo" (headed by Joachim von zur Gathen and Michael Dellnitz)
2005: Guest lecturer (SNF project 21-04-0303) at the University of Southern Denmark; host: Klaus Meer
2006: von Humboldt fellow (JSPS scholarship) at the Japan Advanced Institute of Science and Technology; host: 石原 哉
July 2007: visiting scholar at the Korea Institute for Advanced Study; host: 박형주
March, 2008: Habilitation at the University of Paderborn
Sept 2008: Visiting Associate at the Korea Advanced Institute of Science and Technology (KAIST); host: 정지원
from March 2009: DFG Heisenberg-Scholar at the Technical University of Vienna, Department of Theoretical Physics; host: Karl Svozil
Since March 2010: Professor at the Department of Mathematics, Technische Universität Darmstadt
Since Oct 2011: elected member of the Faculty Council
Since Nov 2012: Co-/speaker of IANUS: Interdisziplinäre Arbeitsgruppe Naturwissenschaft und Sicherheit
Feb+Mar.2013: Visiting Researcher at the Graduate School of Information Science and Technology, University of Tokyo; host: 河村彰星