The candidate will contribute to developing innovative Silicon Photomultipliers (SiPMs) for applications in cryogenic environments. Special emphasis will be given to technologies that can improve the SiPM photon detection efficiency in the near (NUV) and vacuum ultraviolet (VUV) for applications in fundamental physics at room and cryogenic temperatures and the use of those high-efficiency SiPMs in applied and space physics. The project includes the silicon architecture design, the production process development, and application-specific packaging implementations