Projects

A collection of projects I've worked on, from payment infrastructure to AR games.

Ordinance

Agentic research system for Hong Kong building regulations — hybrid retrieval, focused tools, and verification over 15,000+ chunks across 240 government documents.

TypeScript Agents RAG LLM Evals PostgreSQL pgvector OpenAI Cohere

Hero Plus Payment Platform

Multi-gateway payment platform processing transactions across Thailand, Hong Kong, Malaysia, and Singapore.

Ruby on Rails React PostgreSQL AWS Payments PCI DSS POS

Telephone

Outbound voice-AI platform — an agent that places and holds live phone calls on a user's behalf, with verified caller ID and a blocking compliance engine in the call path.

Python Agents Voice AI Telephony Compliance Pydantic

Stroke Rehabilitation AR

AR therapeutic games for stroke rehabilitation using computer vision and Unity. Research project at HKU that increased therapy adherence by 40%.

Unity C# Computer Vision AR Python

Solvfit

Skill-based talent matching platform with explainable scoring algorithms. Co-founded to reduce hiring biases and improve placement precision.

React TypeScript Tailwind CSS AWS Node.js

QRun

Location-based orientation game app that gamifies facility familiarization through QR code scavenger hunts. Led development as part of HKU COMP3330.

Android Java Firebase QR Code Location Services Mobile Development