Olivier is a Directeur de Recherche at INRAE, previously at Génétique Quantitative et Evolution - Le Moulon, now IPS2 (Institute for Plant Sciences Paris Saclay), Gif-sur-Yvette. Olivier was previously Professor of Physics, Université Paris-Saclay at Orsay and Junior member of L’Institut Universitaire de France as well as Research Vice-President of the Physics Department of the University of Paris-Saclay at Orsay. His research focuses on biological networks, gene regulation, meiosis and recombination, algorithmic methods and systems biology. I encourage efforts to advance cross-disciplinary work. I helped set up the Axe Interface Physique Biologie of the RTRA Triangle de la Physique and the corresponding axis of the Labex PALM.