Jonna

@jonnasop

Full Stack and Blockchain Engineer for Fintech and Wallet Systems

United Kingdom

English

About me

I’m a Senior Full Stack and Blockchain Engineer with 6+ years of experience building secure fintech and Web3 systems. I develop crypto exchanges, wallet infrastructure, DeFi platforms, and scalable SaaS backends. My stack includes React, React Native, Next.js, NestJS, Node.js, microservices, Kafka, Redis, Docker, and cloud deployment. I focus on security, performance, and clean architecture. I’ve built platforms serving 500K+ users. Let’s build something production ready.... Read more

Skills