Stephan Roche is ICREA Research Professor, head of the Theoretical and Computational Nanoscience Group of Catalan Institute of Nanoscience and Nanotechnology (ICN2). He is a theoretical physicist expert in quantum transport and in the development of computational modelling of nanomaterials and devices. His expertise includes the development of order N quantum transport (Kubo and Landauer-Büttiker conductances), with which he has pioneered mesoscopic transport studies in chemically disordered graphene-based materials and devices. He has a deep experience in developing advanced simulation tools in the context of industrial research, with collaborations including large companies such as NEC, ST Microelectronics, and SAMSUNG. He is co-supervising the GRAPHENE SPINTRONICS Work package within the Graphene Flagship project.