Jonathan Smillie

I’m a senior web developer with 10+ years of experience building high-traffic websites and web applications. I specialize in modern frontend architecture using React, TypeScript, and JAMstack technologies, delivering end-to-end solutions from architecture through hosting, deployment, and maintenance.

I’ve rebuilt and scaled major web platforms for organisations including Parity Technologies, Consensys, and Input Output, contributing to projects across the Polkadot, Cardano, and Ethereum ecosystems used by millions of users worldwide. I thrive on improving architecture, performance, and maintainability while keeping user experience at the center.

In recent freelance work (2024–2026), I’ve delivered 10+ production websites and web platforms, built responsive React/TypeScript applications, and implemented CI/CD pipelines and scalable hosting solutions. I collaborate closely with designers and digital artists to ship polished, production-ready interfaces.

Previously at Consensys, I led frontend initiatives and managed the rebuild of metamask.io using React while modernising the platform’s frontend architecture. Earlier, I introduced JAMstack architecture with React and headless CMS at Input Output and helped establish internal web development capability as a second web developer.