Software engineer in Singapore. I build AI infrastructure at TikTok by day and small tools by night, mostly to catch machines being confidently wrong.
- 💼 AI Infrastructure Engineer at TikTok, Global E-commerce
- 🛠 Currently building tools that make an agent prove what it says before anyone reads it
- 🏢 Ran a one-person AI company on the side until a client bought it
- 🎾 Away from the keyboard: tennis, a trading journal I actually keep, and a home server that always needs something
- 💬 Ask me about agent runtimes, MCP, A2A, Go services, or why the ranking should never come from the model
- 📫 junxiong.dev · LinkedIn · notes · email
How I build agent systems
