I completed a PhD thesis in theoretical physics (LPTENS, University of Paris VI) under the supervision of Mr Mézard. The title was ‘Some aspects of the non-equilibrium dynamics of spin glasses’, and I defended it in November 1996. I then spent two years as a postdoctoral researcher at the ICTP in Trieste.

In 1998, I was recruited as a CR2 at the CNRS, at the Laboratory of Theoretical Physics at the University of Paris-Sud, where I spent 10 years. I am currently a DR2 CNRS at the Centre for Theoretical Physics in Marseille. I was also a researcher at the Institute for Scientific Interchange Foundation in Turin, Italy, from 2006 to 2019, and a Specially Appointed Professor at the Tokyo Institute of Technology (World Research Hub Initiative) from April 2019 to March 2022.
From April 2014 to November 2020, I was Vice-President Treasurer of the Complex Systems Society.

My research topics mainly concern complex networks and their interdisciplinary applications. I am co-founder of the collaboration SocioPatterns, which studies the dynamics of social networks.