Dmitry Zhelezov
Dmitry Zhelezov is co-founder and CEO of SQD (formerly Subsquid), a decentralized Web3 data network that indexes and serves on-chain data as an alternative to relying on RPC providers. His Ethereum TV talk, "Why We Had to Build a Petabyte Data Lake to Fix Indexing" at Pragma Buenos Aires, covers the scaling problems behind that indexing infrastructure.