François Couëdo is a permanent researcher at LNE. He got his PhD from University Paris-Sud (now University Paris-Saclay) in 2014. He was then a postdoctoral fellow at NTT Basic Research Laboratories and at ESPCI/LPEM, where he worked on topological insulating phases in III-V semiconductors and on high-frequency applications of high-Tc superconducting Josephson junctions, respectively. Since 2019, he worked on quantum Hall resistance metrology in the Fundamental electrical metrology department at LNE.