Jun Liang Lee

Jun Liang Lee is the CEO and Co-Founder of Lightsage, a San Francisco-based Agent-Led Growth platform pioneering the infrastructure for how AI agents discover, evaluate, and use software products.
Jun Liang studied at Stanford University and previously built Sapient, a venture backed by the ex-CTO of Salesforce, demonstrating a track record of founder-led innovation in the AI and developer tools space.
Jun Liang coined the concept of Agent-Led Growth (ALG), arguing that every software company will need to optimize for the agent journey, not just human visibility, to win the next era of software distribution.
He co-founded Lightsage alongside CTO Sean Er, securing a $4M seed round led by Nexus Venture Partners with backing from prominent operators including the former Salesforce CTO, Postman CEO, Apollo CEO, and DocuSign President.
Lightsage's platform is already trusted by companies like Firecrawl, Reducto, Daytona, Rime, and Tinyfish, running large-scale agent simulations across coding agents including Claude Code, Codex, Cursor, and GitHub Copilot.