Yangshun is the co-founder of GreatFrontEnd, a platform for software engineers to level up their front end skills. Previously a Staff Engineer at Meta, he led the development of meta.com, Docusaurus 2, and maintained Flux. He's active in the open source community, having authored Blind 75, Tech Interview Handbook, and Front End Interview Handbook. These days, he's exploring the intersection of AI + Front End Engineering and authoring the AI Engineer Handbook.