Hello! I'm Zong Jun, a full-stack software engineer at Angel Gaming Devices in Kyoto, Japan, where I work in the AI Solution Development Department. I like owning systems end to end, from architecture and API design through to testing and deployment.

At work I've built a real-time analytics platform showcased at G2E Asia 2026, a secure file-distribution system used across eight international offices and a k6 load-testing tool. I'm currently leading the development of an LLM-powered assistant that turns plain-English questions into SQL using local models, along with a retrieval-augmented generation (RAG) pipeline.

Outside work I build things for fun. Most recently that's a real-time multiplayer recreation of classic MapleStory in the browser, with an authoritative game server, the original jobs and skills, and party quests. I graduated from Nanyang Technological University in Electrical and Electronic Engineering (Computing & Intelligent Systems).