Guillermo Rauch is the founder and CEO of Vercel, where he leads the company’s mission to help teams ship the world’s best AI products. Originally from Argentina, he became a self-taught developer at age ten and is a longtime open-source contributor. He is the designer and co-author of Next.js, the world’s most popular React framework, and the creator of Socket.IO and Mongoose.js. In 2025, Vercel raised a $600M Series F at a $9.3B valuation and was named to the Forbes Cloud 100.