HireFT
Browse JobsHow it worksPricingAboutSuccess Stories
    Back to jobs
    CM

    Cmux

    B2B Software and Services

    Founding Engineer

    San Francisco, United StatesOn-SiteFull-time$130k – $170k / yearPosted 1mo ago
    All Cmux jobs

    Job description

    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.\ \ 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

    Job details are sourced from the employer's original posting.

    Open job posting
    CM

    About the company

    Cmux

    Open source applied AI lab building next-gen devtools

    View all Cmux jobs
    Industry
    B2B Software and Services
    Open roles
    3

    Interested in this role?

    Apply with HireFT

    Free to start — no card required.

    Your fit

    How well do you match?

    Sign in to see how your résumé lines up with this role.