Christoph Gonçalves Alpoim completed his master's degree in civil engineering at the Technical University of Braunschweig. He has been working for Hamburg’s S-Bahn in the areas of railway operations, construction and signalling technology since 2014 and has been leading the digitiza-tion projects at S-Bahn Hamburg since 2017. Since 2021 he is in charge of the rollout program Digital S-Bahn Hamburg.