Stéphane Lemaire leads an internationally recognized laboratory in the fields of redox signaling, photosynthesis, carbon fixation, post-translational regulations and synthetic biology. He has a strong expertise in protein biochemistry and proteomics of post-translational modifications, especially of carbon metabolism enzymes. He is an expert of the green alga Chlamydomonas reinhardtii and of the Calvin-Benson cycle. He develops synthetic biology methods, tools and concepts in microalgae in order to redesign these photosynthetic organisms for both fundamental and technological developments. His current research aim at using synthetic biology approaches for understanding and improving carbon fixation in Chlamydomonas. He also develops new methods for DNA data storage. He studied plant molecular biology and genetics. Stéphane obtained his Ph. D. from Université Paris-Sud and was trained as a postdoc in the molecular biology department of the University of Geneva under the supervision of Jean-David Rochaix. He founded the Laboratory of Molecular and Cellular Biology of Eukaryotes at the Institut de Biologie Physico-Chimique in Paris. He was director of the department from 2010 to 2018 and is deputy director since 2019. He was awarded the CNRS bronze medal in 2006.