I'm building production-grade AI and web platforms at The Hong Kong Polytechnic University, including a RAG system using LangChain, OpenAI API, and Chroma DB that reached 92% educational-content retrieval accuracy.
I also engineer institutional event platforms supporting 600+ events and 100,000+ registrants with 99.9% uptime. By streamlining registration through digital check-in, I reduced manual administrative work by 65%.
Previously at TNS Limited in Tokyo, I built a high-availability disaster-response mobile app with React Native and Google Maps SDK, enabling low-latency location sharing for more than 10,000 active users. I collaborated with local stakeholders through Japanese-language standups, reviews, and documentation.
I've modernized a commercial bank loan-processing system and founded Beruf AI, an AI resume coaching SaaS that uses LLM prompting and semantic matching to deliver targeted improvement suggestions.
