Rafael Belchior

Ph.D. in Information Systems and Computer Engineering

Research Engineer and Senior Software Engineer

Security & Privacy, Distributed Systems, Blockchain, Interoperability

Rafael Belchior

🎓🛠️ I'm a senior engineer at Blockdaemon, a researcher at INESC-ID, and a Fulbright awardee (MIT Connection Science & MIT Media Lab). I hold a Ph.D. from Técnico Lisboa ("Best INESC-ID Ph.D. student").

🔗 I'm a distributed systems generalist focused on blockchain. My work centers on blockchain interoperability, privacy, and security - figuring out how to make different blockchain systems talk securely without leaking sensitive information. I'm particularly interested in building resilient infrastructure for next-generation payment systems and digital asset management. A 20-minute video summarizing my PhD thesis is available here.

😈 At Blockdaemon, I develop secure blockchain interoperability solutions for DeFi applications. I'm active in open-source ecosystems, including the Internet Engineering Task Force (SATP protocol) and serve as a maintainer of Hyperledger Cacti - the Linux Foundation's flagship enterprise blockchain interoperability project. I volunteer in the Hyperledger mentorship program, helping newcomers to blockchain.

📚 During my time as a researcher, I've contributed to the academic community in multiple ways. I've reviewed for leading conferences and journals like IEEE Transactions on Services Computing, ACM Transactions on Privacy and Security, and IEEE ICBC. I was co-chair of the cross-chain workshop at IEEE ICBC and co-chair of the DepWeb3 Workshop 2025. At MIT, I studied security and privacy of interoperability and wrote outreach materials advocating for the field's importance. I've mentored over 10 master students on blockchain topics.

🎤 I'm passionate about sharing knowledge through talks and outreach. I've participated in panels like the Interoperability Panel at Joining Forces for Blockchain Standardisation (INATBA, 2024). I've delivered workshops like Blockchain Interoperability with Hyperledger Cacti and presented on Formalizing and Standardizing Blockchain Interoperability at Hyperledger Global Forum in Dublin. I also give guest lectures at universities worldwide.

🥋 When I'm not deep in blockchain research, you can find me playing piano, practicing judo, or hiking.


Contact: rafael.belchior ((at)) tecnico ((dot)) ulisboa ((dot)) pt

Last update: June 2025