Simão is a senior counsellor for the standardization work on AI for health in the ITU and the ITU/WHO/WIPO Global Initiative on AI4H. Until 2024, he was the head of secretariat for ITU’s Study Group 16 (on multimedia and digital technology standards including audio and video coding, accessibility, digital health) and WHO/ITU Focus Group on AI for health (FG-AI4H). His standardization experience started in 1989 with voice compression standards, and has managed the development of some notable technical standards, including Primetime Emmy recipients H.264 AVC, H.265 HEVC and JPEG; as well as ITU/WHO H.870 Safe Listening Devices and H.810-series Continua Design Guidelines. Prior to joining ITU, Simão was a Scientist at COMSAT Labs, USA, and a researcher at Brazil's CPqD telecom research center. A Senior Member of the IEEE, author of academic and position papers, he organized the first ITU Kaleidoscope Conference.