Dr.-Eng. Jean-Christophe Sublet has been recently appointed nuclear data services unit head of the International Atomic Energy Agency in Vienna. Prior to this latest post, he was covering the management and technical leadership of the work performed by the UKAEA on the provision and development of the next generation, 21st century multi-particles, multi-physics, multi-scale, source terms and inventory simulations systems and technology driven nuclear data library able to foster the nuclear and material sciences renaissance. He has been a lead evaluator of nuclear data: EAF, TENDL; developer of the processing code CALENDF, inventory code FISPACT-II. Jean-christophe in his career has worked for AREVA, CEA, UKAEA and now the IAEA on the nuclear data and neutronics aspects of most types of nuclear devices.