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Guillaume Tissier is a Senior Software Engineer at Helpling with experience in Front-End development using React, MobX, Apollo, and GraphQL. Guillaume has also worked as a Backend PHP Developer at Home24 GmbH and as a Back-end Developer at Payango GmbH. With a background in R&D Engineering at companies like Alcatel-Lucent and Nortel Networks, Guillaume has a Master's degree in Control Systems and Industrial Data Processing Engineering from Télécom Physique Strasbourg.