Electronic Engineer (1975) and Master of Computer Science (1977) from UFRGS. Ph.D. in Computer Engineering from the University of Kaiserslautern, Germany (1983). Professor Emeritus of the Institute of Informatics at UFRGS, where he served from 1977 to 2017. President of the Brazilian Computer Society for two terms (1999–2003). Member of the CGI.br (Brazilian Internet Steering Committee) for three terms (2008–2017). Member of the NIC.br (Network Information and Coordination Center of the .br domain) for two terms (2013–2017). Member of the MAG – Multistakeholder Advisory Group, United Nations (2015–2017 and 2025), the committee responsible for the IGF (Internet Governance Forum). President of ISOC Brazil, the Brazilian chapter of the Internet Society, since 2018. Coordinator of the Steering Committee of the Internet Society’s Chapters Advisory Council, which brings together the organization’s 120 national chapters, since 2025. Recipient of the Commendation of the National Order of Scientific Merit (2008) and the Internet Governance Highlights Award (2023).