Dionysis Zindros is a cryptographer and software engineer focusing on blockchain research and with a particular interest in the cryptographic design and analysis of the consensus layer for blockchain interoperability. His research enables the decentralised communication of proof-of-work and proof-of-stake blockchains, building bridges between different cryptocurrency systems. He holds a PhD in Computer Science from the University of Athens and an MEng in Electrical and Computer Engineering from the National Technical University of Athens. In the past, he has worked as a software engineer in the Incidence Response Development team of Google in Zürich and in the Product Security team of Twitter in San Francisco. He has published academic papers in top-tier peer-reviewed security and cryptography conferences such as IEEE Security & Privacy, ESORICS and Financial Cryptography, and presented his work in popular community conventions including Black Hat Asia, Black Hat Europe and the Chaos Computer Congress.