Antoine Jay received his PhD degree in Solid State Physics. His Ph.D. work was on the modelling of boron carbides with density functional theory. He is a contract researcher at the Laboratory for Analysis and Architecture of Systems in Toulouse since 2019. His research activities are centred on the electronic and optical effects induced by atomic scale defects in electronic devices. His main objective is to understand, predict and anneal the thermal noise that decreases the performances of these devices when defects appear during their use in nuclear or spatial environment, or during the dopant implantation processes. He studies these properties using ab initio calculations of the multi-phonon emission in bulk semi-conductors and at their interface with oxides and metals. He links calculations to observations of single defects that have been made possible by monitoring irradiated pixel arrays.