Sergii Grybniak

Sergii Grybniak is a researcher and program leader focused on distributed ledger technology, blockchain systems, and their practical implementation. His work spans research, standards development, decentralized governance, consensus protocols, smart contracts, and blockchain-based transactions. He serves as Head of Research at the Waterfall Institute and Program Lead at the IEEE Ukraine Section. He is also Treasurer of the IEEE Ukraine Section, Vice Chair of the IEEE Standards Association’s P3228 standard for recurring transactions using distributed ledger technology, and Co-Chair of the IEEE Ukraine Blockchain Group. His background includes service on the advisory council of Carvoy, which was acquired by Capital One.

Grybniak shares his expertise through research publications, conference participation, and contributions to technical standards. His publications address topics such as recurring and deferred smart-contract transactions, decentralized voting, distributed ledger scalability, BlockDAG subnetworks, consensus optimization, and blockchain applications in energy and finance. His work has received recognition from IEEE and academic organizations, including awards for technical merit and an outstanding doctoral dissertation.