Julia Uitz is a research scientist with interests in the space-time dynamics of phytoplankton communities and associated impacts on carbon fluxes and ecosystems, at global and regional scales. To this end, she uses or develops approaches that combine observations from BGC-Argo profiling floats, research vessels and ocean color satellites. She is the coordinator of the BGC-Argo component of the Argo-2030 project (PIA-3 EquipEx) that aims to demonstrate the potential of integrating ecological sensors onto profiling floats. She coordinates the BGC-Argo component of the Argo-France observation service. She is also the co-chair of the scientific committee of the French Mercator Coriolis Mission Group (GMMC). She coauthored >50 publications.