Edouard Leymarie is a research engineer at LOV since 2003. He led the technological development of several optical instruments for in-situ radiometric measurements such as a radiance camera or a patented scatterometer. He also developed the SimulO software, which provides an easy-to-use interface for performing optical simulations and shading calculations using the Monte-Carlo method. After developing the ProVal Argo profiler as part of a CNES-funded project, he now supervises the team's technological developments on BGC-Argo profilers, such as the ERC REFINE profiler. He is in charge of WP3 of the PIANO project, funded by Ifremer, and dedicated to the development of new BGC sensors on floats. He is also co-leader of WP3 of the European GEORGE project on improving autonomous platforms for the characterization of the ocean carbon system. At the French level, Edouard Leymarie is a member of the Argo France steering committee. At the international level, he is part of the BGC-Argo mission team and co-leads the new Technical Task Team dedicated to sensors for the BGC-Argo mission.