Johnny Tai

Frontend Engineer based in Taiwan
Working on data-heavy applications and scalable frontend systems

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I build products with React + TypeScript, focusing on:

• complex data flows and large-scale UI
• performance optimization (pagination, async data handling)
• improving developer experience (tooling, conventions)

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Work

• Cashback platform (50+ partners)
• Pricing & marketplace tools
• EV charging management system (global scale)
• Freelance → https://hao-portfolio-mu.vercel.app/

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Stack

React / TypeScript / Next.js / Vite

TanStack Query / RTK Query /GraphQL

Tailwind / SCSS

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Links

Portfolio → https://johnny-tai-portfolio.vercel.app/

Email → [email protected]