Hamdi Trigui is an experienced engineer specializing in maintenance and signaling works at SNCF since October 2020. Additionally, Hamdi has held various roles at ALSTOM, including Requirement Manager and Configuration & Documentation Manager, focusing on requirement management, compliance, and process change for projects like SMART Metropolis. Previous positions include methods engineer at SNCF, where Hamdi implemented LEAN tools and performance indicators, and an engineering roles at SEGULA Technologies, TPS, and others, emphasizing energy efficiency and project coordination. Hamdi holds degrees in mechanical engineering, strategic management, energy engineering, and foundational studies in mathematics and physics from various institutions, including Polytech Lyon and Université Lumière Lyon 2.