Top expert inFull Stack Web Development Technologies
Jonathan Summers-muir is a product designer and front-end engineer with 11 years of experience shaping digital products in lean startup environments, currently a founding team member at Supabase. He blends UI/UX craft, front-end development and analytics-driven experimentation—having run user testing, A/B tests and instrumentation with Mixpanel, GA and Hotjar—to turn customer insight into measurable product improvements. Jonathan has shipped components and theming for high-profile open source projects like Supabase and contributed example integrations to Next.js, demonstrating practical React and TypeScript expertise. His background spans EmberJS, Ruby on Rails, QML and modern tooling, and he often owns both design artifacts and the Sass/views that bring them to life. Colleagues know him for adapting fluidly between roles in tight agile teams and for translating qualitative user feedback into production-ready UI changes.
11 years of coding experience
5 years of employment as a software developer
Graphic Arts BA (Hons), Graphic Design, Graphic Arts BA (Hons), Graphic Design at Liverpool John Moores University
Graphic Design BTEC, Graphic Design BTEC at Runshaw College
Contributions:1 release, 100 reviews, 748 commits in 1 year 9 months
Contributions summary:Jonathan primarily focused on developing and updating UI components for the Supabase UI Library. They implemented new components such as Select and TextInput, and added support for dark mode and additional styling. Their contributions included adding configurations and updating dependencies to support new UI elements.
The open source Firebase alternative. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.
Role in this project:
Full-stack Developer
Contributions:1796 reviews, 2110 commits, 1272 PRs in 2 years 2 months
Contributions summary:Jonathan's commits primarily focused on front-end development tasks, specifically the implementation of new UI components and features for a web application, showcasing proficiency in React and TypeScript. They also made changes to incorporate new styling and theming capabilities, demonstrating a focus on the visual aspects and user experience. The user worked on database-related configuration and deployment, indicating a good understanding of the project's backend.
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Jonathan Summers-muir - Product Design at Supabase