Guillermo Rauch
Also known as rauchg
CEO of Vercel; created Socket.IO and Mongoose, co-authored Next.js.
At a glance
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- Guillermo Rauch is an Argentine software engineer and the CEO of Vercel.
- He moved to San Francisco at 18 for a frontend job after working on MooTools.
- He wrote Socket.IO and Mongoose and designed Next.js.
- He founded Vercel in 2015 as ZEIT.
Key facts
- From
- Lanús, Buenos Aires, Argentina1
- MooTools
- Core team member; led development of the MooTools Forge package repository1
- Open source
- Authored Socket.IO, Mongoose and the Hyper terminal; designed and co-authored Next.js1
- Book
- Smashing Node.js: JavaScript Everywhere, one of the first books on Node.js1
- Startups
- LearnBoost; Cloudup, acquired by Automattic1
- Vercel
- Founded it in 2015 as ZEIT, renamed Vercel in April 2020; CEO2
- Vercel funding
- Series F of $300 million in September 2025 at a $9.3 billion valuation2
Links
Sources
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