It's worth pointing out that I was admitted to ENSTA on the basis of qualifications, enrolled by the French Army as part of my course to become a senior officer in operational research, and before attending the École de Guerre. From 2012 to 2016, I served in the Army's analysis and operational research office, doing what we now call data science. In particular, I was able to use the training I received to propose optimizations in the application of the "Armée de Terre 2020" reform. I left the army in 2016 to join Airbus Secure Communications in Élancourt as a tender manager. And I've been working for KNDS France since 2020, as program manager for the Griffon vehicles delivered to France and recently as sales manager for the CaMo contract for Belgium.