Founding Designer
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Before you apply
Salary$130k – $170k
LocationSan Francisco, California, US
Work modeon-site
SeniorityLead
EquityIncluded
Company size1–10 people
First seenSep 30, 2026 · 1mo ago
Verified live3d ago
At a glanceSummarised by Seekless from the posting.
Walking encyclopedia of design components from all sorts of apps
People come to you for design references all of the time
Obsessive taste for native macOS apps and developer tools
Prototype in code and ship real UI
Typography, motion, and systems thinking; attention to detail
Benefits
Health insurance
Dental insurance
Vision insurance
About the company
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.
About the role
We’re hiring a talented founding designer to help us design the future of coding with AI.
What you’ll do
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Design frontier devtools across the stack: cmux macOS, cmux TUI, cmux Windows/Linux, cmux iOS, cmux Cloud, cmux.com, chatmux, and more
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Help design the most useful product for developers to do work with AI
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Own the look, feel, and interaction model end to end, including user feedback loops
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Dogfood, prototype, and ship constantly
Who we’re looking for
No hard requirements. We want talented designers from any background.
Nice to have
Things that make us extra excited:
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You are a walking encyclopedia of design components from all sorts of apps
•
People come to you for design references all of the time
•
Obsessive taste for native macOS apps and developer tools
•
You prototype in code and ship real UI
•
Typography, motion, and systems thinking; you care about the 1px details, padding, etc
Details
•
Compensation: 130k - 170k + 0.5% - 1.5% equity
•
Benefits: Health, dental, and vision insurance
•
Location: San Francisco
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