Radek Ostrowski's logo

Radek Ostrowski is Co-Founder of dHEDGE, Blockchain & Big Data Engineer at Toptal. Formerly, CTO & Co-Founder at RelayPay. Blockchain Engineer particularly interested in Decentralised Finance (DeFi), Ethereum and Smart Contracts. In the fiat world, experienced in Big Data/Machine Learning projects. Triple winner in two different international IBM Apache Spark competitions. Co-creator of PlayStation 4 backend. Successful hackathon competitor. Speaker at conferences in Australia, Poland and Serbia.