// JUNXIONG.DEV / SINGAPORE
Ong Jun Xiong
I'm a software engineer at TikTok in Singapore, working on AI infrastructure.
Most of my work is Go backends and distributed systems. I like taking something from zero to one, and then from one to a hundred. Outside work I ran Compoze, a small company I sold to a client in 2025. Below is what I build in my own time.
JX / 2026
SINGAPORE
// PROJECTS
Selected work
Open source · 2026
AI tooling
Open-source tools I wrote for working with AI agents, sorted by where each one sits in the stack.
Layer
Tool
- Memory
- Workbase
- Context
- Agent skills
- Evaluation
- Skillsmith
- Runtime checks
- Groundplane
Company · 2025
Compoze
Assistants that answer questions from a company's own documents. A side business next to TikTok, where I did the sales, the building and the customer training.
Policy search
3 sources
How much annual leave carries over?
Up to 5 days, used by 31 March.
Also building
Research system
Trading engine
Tests trading ideas overnight, with the rules fixed before the results come in.
Design system
UI Pack
The figures, motion rules and slide starters shared across my projects.
// ELSEWHERE