Yewen Jin

Next.js, React, TypeScript, Tailwind CSS, Supabase, Vercel AI SDK, OpenRouter

• Built an ADHD-informed time-tracking journal app that creates a memory system for intent classification, structured time-block logging, clarification, CBT-style intention tracking, and evidence-based daily summaries. Live · GitHub
• Developed AI agents that dissect user language patterns into behavioral signals such as avoidance, friction, useful drift, emotional context and intention/action mismatch for later self-reflection.

React Native, Expo, Express, Socket.io, Supabase, PostgreSQL, Jest, GitHub Actions

• Designed the data-layer architecture with REST + Socket.IO: REST owns persistence, Socket.IO owns real-time delivery, served from a single Express process. GitHub (FE) · GitHub (BE)
• Implemented the Socket.io integration layer: room-based episode channels, real-time broadcasting, live/historical data merging.
• Led technical documentation including architecture diagrams and data flow maps.
• Led a major codebase refactor to consolidate duplicated logic and establish maintainable patterns.

Claude Code, Node.js, WebSocket, MIDI protocol

• Built a remote MIDI relay server enabling live MIDI signal routing for Jazz band Speaker's Corner Quartet for remote robotic instrument control. Live · GitHub
• Sub-50ms added latency over typical internet connections, with binary WebSocket frames.
• Solo build, prototyped in a day using a multi-agent Claude Code orchestration with dedicated sub-agents for context, token budget, and workflow state.

HTML, CSS, JavaScript, Node.js, p5.js, WebSocket

• Designed and built a browser-based, chatroom-style interactive narrative game for an interactive performance. Game Portal · GitHub
• Handled technical setup and audiovisual networking throughout the artist's performance.

React, TypeScript, PostgreSQL, Supabase, Firecrawl, OpenRouter

• Built a full-stack app that scrapes job postings from a URL into structured database entries, tracks application progress, and uses an LLM to score CV/cover letter match. Live · GitHub
• Prototyped and shipped in a day, continued working on it for the next 2 weeks.

• Build bespoke technical solutions for artists and organisations: live performance infrastructure, custom web tools, AI-assisted prototypes.

• Identified workflow inefficiencies across the gallery's charity operations and built a Google Suite + Apps Script automation that replaced paid tools with a free, scripted system.
• Maintained the gallery's website (Squarespace, WordPress) and produced/published artist interviews and digital content (40k+ social reach).

• Built a creative tech production company from zero, taking research-stage ideas into shipping products with a small team, owning product direction across multiple projects.
• Designed and built skopetur.com using Svelte + SvelteKit, deployed via Netlify.
• Interactive Online Performance Tool & Video Streaming Platform: led UI/UX in Figma and built the Svelte frontend for a low-latency video streaming platform purpose-built for networked performance; collaborated on backend (Docker, WebRTC, Janus).
• Distance Anatomy: produced a hybrid London ↔ New York synced live performance series using JackTrip (audio networking) and Google MediaPipe motion tracking; press coverage by ShowStudio News.
• Selected for Goldsmiths Startup Scheme (2021 cohort) for business support and mentorship.

• Designed a Squarespace website with custom frontend components in CSS/JavaScript.
• Built pitch decks and conducted marketing research based on company-owned IP.

Creative Tech Teaching

• Workshop instructor at The Design Museum, London (2022–23, robotics & narrative coding for ages 8–14).
• Tinker Studios (2022–23, weekly coding/robotics workshops in Unity, micro:bit, HTML/CSS).