Founding Engineer

cmux is a native macOS terminal built on Ghostty, designed for running multiple AI coding agents in parallel. Hundreds of thousands of developers use cmux to drive their agentic coding workflows.\ \ Check us out at cmux.com and on GitHub .\ \ We're hiring talented founding engineers to help us build the future of coding with AI. What you'll do - Build frontier devtools across the stack: cmux macOS (Swift/AppKit), cmux TUI (Rust), cmux Windows/Linux (C++/Chromium), cmux iOS, cmux Cloud, subrouter (Go), chatmux, and more - Help invent the most useful product for developers to do work with AI - Own products and features end to end, including user feedback loops - Dogfood, test, and verify constantly; use cmux to build cmux Who we're looking for No hard requirements. We want talented builders from any background. Things that make us extra excited:\ \ - You use 10B+ tokens a day - All-rounders and creative problem solvers - Great design taste and care for the craft - Swift/AppKit, C++, Rust, Go, or Chromium experience - Open-source maintainers, former founders, people who ship complete products - Sending cmux PRs for us to review or demoing custom cmux plugins / workflows Details - Compensation: 130k - 170k + 0.5% - 1.5% equity - Benefits: Health, dental, and vision insurance - Location: San Francisco