# Founding Engineer at cmux

- Company: cmux (YC S24)
- What the company does: Open source applied AI lab building next-gen devtools. Backed by Y Combinator.
- Company website: https://www.cmux.com
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Pay: $130K to $170K base salary per year (USD)
- Posted: 2026-08-28
- Apply by: 2026-10-12
- Apply: https://www.ycombinator.com/companies/cmux/jobs/RcX3bDA-founding-engineer
- Page: https://www.1752.vc/careers/jobs/cmux-founding-engineer/

## About the role

- 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

## What they're looking for

- No hard requirements. We want talented builders from any background

Tags: Engineering