Yewen Jin

Design Engineer · London

I build interfaces and real-time systems, from prototype to production. Recent work spans AI product features, networked performance tools, and browser-based interactive software. AI-native workflow — Claude Code and Cursor are daily drivers.

Email · GitHub · LinkedIn · CV

Selected work

Alibi2026
ADHD-informed AI time journal that turns timers and notes into a timeline. Agentic workflows classify intent and surface behavioral patterns.
Next.js · React · TypeScript · Tailwind · Supabase · OpenRouter
Live · GitHub
SpillR2026
Real-time TV commentary platform with time-synced messaging. Mobile-first.
React Native · Expo · Express · Socket.io · Supabase · PostgreSQL
Live · GitHub
MIDI Relay2026
WebSocket relay forwarding MIDI bytes between remote clients without inbound ports. Sub-50ms latency for networked installations.
Node.js · WebSockets · Web MIDI · Nginx · Docker
Live · GitHub
The Body is Obsolete2025-2026
Browser-based interactive fiction disguised as a chatroom, with generative p5.js visuals. Built independently for live performance.
Node.js · Socket.io · p5.js
Live · GitHub
Job Tracker2026
Job application dashboard with AI auto-fill from job URLs and CV match scoring. Eight status stages with rich metadata per role.
React · TypeScript · Tailwind · Supabase · Firecrawl · Vite
Live · GitHub

Writing

Engineering notes are published at yewenjin.com/blog.