Professor Dynamics Infectious Diseases Utrecht University since june 2014   Coordinator and project leader of the Utrecht Centre for Infection Dynamics (UCID), a collaboration of several research groups in the area of infectious disease epidemiology and modeling within the Focus area Epidemiology at Utrecht University

Spearhead coordinator Strategic Research RIVM focus areas INF and IDD since January 2012
Member of Editorial Board of the journal Mathematical Biosciences since 2003, Elsevier

Associate Editor of BMC Infectious Diseases since 2009
Member of Editorial Board of Sexually Transmitted Infections (BMJ Journal) since 2010
Academic editor and reviewer for PLoS Medicine and PLoS ONE
Member of the reviewers pool of the European Science Foundation (ESF) Reviewing of manuscripts for many international epidemiology and mathematical biology journals; among others Nature, PNAS, Lancet, AIDS, AIDS and Behaviour, Proceedings of the Royal Society London B, Journal of the Royal Society Interface, Mathematical Biosciences, Journal of Mathematical Biology, Bulletin of Mathematical Biology, Biometrical Journal, Theoretical Population Biology, Sexually Transmitted Diseases, Vaccine, Emerging Infectious Diseases, American Journal of Epidemiology, Journal of Infectious Diseases, Epidemiology, Social Networks, and others