Constantin Zemelman

Constantin Zemelman is an experienced engineering leader in the fintech and blockchain sectors. Currently serving as Director of Engineering for Fiat to Crypto payment channels at OKX since April 2023, Constantin previously held roles at Okcoin as Principal Software Engineer focused on Fiat to Crypto payments, and at Gemini as Staff Software Engineer in Wallet Engineering, where efforts included enhancing exchange wallet digital signature infrastructure and hardening Ethereum transaction processing. Prior experience includes serving as DLT Software Architect/Blockchain Lead at OpenCrowd, Global Payments Software Engineer Project Lead at Finastra, and Software Engineer Project Leader at Fundtech. Throughout a career spanning over two decades, Constantin has demonstrated expertise in payment systems, blockchain technology, and software engineering, utilizing technologies such as Scala, Solidity, and PostgreSQL.