Founding Designer

San Francisco, CA
Full-time
Visa Sponsorship

About the role

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 a talented founding designer to help us design the future of coding with AI.

What you’ll do

- Design frontier devtools across the stack: cmux macOS, cmux TUI, cmux Windows/Linux, cmux iOS, cmux Cloud, cmux.com, chatmux, and more

- Help design the most useful product for developers to do work with AI

- Own the look, feel, and interaction model end to end, including user feedback loops

- Dogfood, prototype, and ship constantly

Who we're looking for

No hard requirements. We want talented designers from any background.

Things that make us extra excited:

- 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

About cmux

Open source applied AI lab building next-gen devtools

Other roles at cmux

Interested?

Let me introduce you to the founders.

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Job details

Salary

$130,000 - $170,000

Equity

0.5% - 1.5%

Location

San Francisco, CA

Experience

0+ years

Company

Namecmux
IndustryB2B
Team Size3

Funding

Last stage

Seed

Investors

Y Combinator

Founders

WT

Wesley Tjangnaka

Co-founder

Lawrence Chen

Lawrence Chen

Co-founder & CTO

LinkedIn
Austin Wang

Austin Wang

Co-founder & CEO

LinkedIn

What happens next.

No applications, no recruiter spam. Just the intro.

01

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

02

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

03

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.