Steve GALLIEN has extensive experience in the railway infrastructure sector, currently serving as Expert Technique infrastructure / ferroviaire at AXODYN Innovation Partagée since May 2017, where responsibilities include team management and support for client projects. Previous roles include Directeur de mission at SNCF Gares & Connexions, overseeing planning operations, and various project management positions at SNCF Réseau, contributing to major projects such as the extension of the RER E. Educational qualifications encompass a DUT in Civil Engineering and a specialized degree in Commercial Techniques from IUT du Havre.