Web & Blockchain Developer | CTO Experience | Warsaw, Poland
I'm a developer with a focus on full-stack and blockchain technologies. With experience as a startup CTO, I build secure, scalable systems using modern web frameworks and decentralized technologies.
Custom blockchain application built with Python and React.js. Processes 1,000+ transactions/hour with cryptographic security and zero downtime.
Project and task management web app that improved delivery efficiency by 25%. Designed for agile teams with a clean UI.
Led the architecture and deployment of a U.S.-based startup platform. Built full infrastructure and product strategy from zero to launch.
React, Next.js, TypeScript, Node.js, Solidity, Web3.js, GraphQL, MongoDB, Redis, AWS, Truffle, REST APIs, SQL