Projects

Work

Each product gets its own chapter: one paragraph of product context, followed by the cases I worked on within it. Click a case title to read the full write-up.

All of these are in-house projects, and the source code is private under NDA. Since mid-2024 my work has been implemented through pair programming with Claude AI agents, with me owning the architecture, review and verification (each case page notes its implementation mode). ClassMate (2023) is from the hand-written era before AI adoption. I am happy to walk through implementation details, metrics and debugging in an interview.

Chapter 01 · MeetMate · Web

MeetMate

Web

The web client of a B2B multi-party video-conferencing platform. In 2026 I rebuilt it as the sole frontend engineer — a new React 19 SPA (v4) branched off a legacy RN + Electron monorepo — and went from login through seven batches of host features in one month. After it went into production, I refined realtime sync, the meeting-room UX and mobile/tablet support (backend owned by a separate teammate).

React 19 Vite + SWC Zustand TanStack Query lib-jitsi-meet Jenkins
Cases 08
Chapter 02 · MeetMate · Mobile

MeetMate

Mobile · iOS + Android

The mobile app of the same video-conferencing platform, built with React Native 0.77. As the sole frontend engineer I own everything from 100-person meeting performance and real-device media stability to the first App Store and Google Play launch in August 2026 and the continuous releases since (backend owned by a separate teammate).

React Native 0.77 Zustand lib-jitsi-meet react-native-webrtc Jest
Cases 09
Chapter 03 · LMS · Web

LMS

Academy LMS · Web

An LMS web app for college-entrance-exam academies, covering everything from instructors registering tests to students taking them inside the MeetMate video classroom and per-student score report PDFs. In June 2026 I took over a team codebase that several people had built since 2024, and I now run its frontend on my own (backend owned by a separate team).

React 18 TypeScript Redux React Query jsPDF Webpack
Cases 03
Chapter 04 · NMS · Web

NMS

Network management system · Web

The web client of a B2B network management system — a multi-tenant product on the Next.js 14 App Router. After taking over the initial build-out, I evolved and maintained the frontend on my own for two years, redesigning the RBAC permission system and the data-loading architecture (backend owned by a separate teammate).

Next.js 14 TanStack Query TypeScript Emotion + MUI Chart.js
Cases 04
Chapter 05 · CBR

CBR

RAG case chatbot · Short full-stack stint

A RAG-based case chatbot. Over seven weeks in July–August 2025 I joined as one member of the team and owned the multi-stage SSE streaming pipeline and the state lifecycle management that keeps streams alive across route changes (StreamManager). On the backend, I extended the FastAPI + LangChain + Qdrant code someone else had started — adding SSE endpoints and more — together with an AI agent (not a solo full-stack effort).

Next.js 15 React 19 FastAPI LangChain Qdrant TanStack Query
Cases 01
Chapter 06 · ClassMate

ClassMate

Education / LMS domain · Web

A React web product that branched the MeetMate video-conferencing core into the education/LMS domain. In 2023, as one member of the team, I owned specific features across coach–coachee Q&A, community, conferences, notifications and a 4-tier back office (not a solo effort — built together with colleagues, with the backend owned by separate teammates).

React 18 Redux Toolkit jitsi-js-utils react-konva webpack i18next
Cases 02