- Visiting Fellow at the National Institutes of Health in Bethesda (MD, USA); 1986- 1988
- Staff scientist at the Pasteur Institute, Paris; 1988-1991
- Visiting Scientist at the University of Alabama at Birmingham (AL, USA); 1991-1992
- Staff scientist at the Pasteur Institute, Paris; 1992-1999
- Professor of Microbiology at the University Bordeaux, Bordeaux; since September 1999
- Director of the Laboratory "Génomique Développement Pouvoir Pathogène” ; 2003- 2010
- Board Member of the University Bordeaux Segalen; February 2007-2012
- Vice-President for Research Affairs, University Bordeaux Segalen; 2007-2012
- Chair of the International Organization for Mycoplasmology; 2008-2010
- Head of the “Mollicutes” group within the UMR 1332 BFP (Dir. T. Candresse); 2013-2017
- Research Deputy Director, Institute for Wine and Vine Sciences. March 2014-Sept 2016
- Director, Institute for Wine and Vine Sciences (http://www.isvv.u-bordeaux.fr/en/ ). Sept 2016-Jan 2023.More...