Sébastien is a veteran software architect and entrepreneur with 20 years experience in several countries (Japan, US, Europe) in big financial companies. Sébastien graduated from Telecom ParisSud, where he specialized in network protocols and cryptography. He also graduated from Reading University (ICMA Center) where he specialized in financial regulation and econometrics. Sebastien started working on Ethereum in 2015, and founded Ledgys.io. Sebastien has realized several business intelligence projects in large companies.