About
Hi there! I’m Yanjun — I build things people love to use. Co-founder at Lessie AI, where we're building vertical AI Agents to solve real problems for niche industries. Before this, I've built social apps, games, and SaaS products over the years — and done a bit of everything along the way: product design, growth, content, hiring. Lately I'm basically living inside Claude Code and Codex. They're my most frequent collaborators now, honestly. Always happy to chat about AI, products, or anything interesting!




