{"schemaVersion":"jobsearcher.job.v1","id":"28e72ddc3eadee35aab7bdc5","url":"https://jobsearcher.com/jobs/28e72ddc3eadee35aab7bdc5","canonicalUrl":"https://jobsearcher.com/jobs/28e72ddc3eadee35aab7bdc5","title":"Founding Chromium Engineer","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.\nCheck us out at cmux.com and on GitHub.\nWe're hiring a founding engineer to own cmux on Windows (and Linux) – built on our own fork of Chromium.\nWhat you'll do Own our Chromium fork: track upstream, rebase cleanly, carry cmux patches (window/input/render integration, terminal surface, agent UI)\nOwn cmux on Windows/Linux end to end: C++, installer, auto-update, crash reporting\nPort the Ghostty-based terminal core and agent-orchestration features (vertical tabs, notification rings, splits, CLI) to Windows\nMake performance feel native: startup time, GPU rendering, input latency\nDogfood, test, and verify constantly\nWho we're looking for Deep C++ and real Chromium work - ideally you've maintained a fork: carrying patches, rebasing on upstream milestones, debugging in content/ or blink\nRust a big plus (our TUI and networking daemon are Rust)\nYou've shipped or maintained a real Windows desktop app\nBonus: upstream Chromium contributions, Swift/AppKit curiosity, open-source maintainer, former founder\nDetails Compensation: $130k - $170k + 0.5% - 1.5% equity\nBenefits: Health, dental, and vision insurance\nLocation: San Francisco\n\n#J-18808-Ljbffr","company":"Cmux","rawCompany":"cmux","city":"Millbrae","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-09-09T03:44:33.413Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.00","title":"Computer Occupations, All Other","slug":"computer-occupations-all-other"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Founding Chromium Engineer","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.\nCheck us out at cmux.com and on GitHub.\nWe're hiring a founding engineer to own cmux on Windows (and Linux) – built on our own fork of Chromium.\nWhat you'll do Own our Chromium fork: track upstream, rebase cleanly, carry cmux patches (window/input/render integration, terminal surface, agent UI)\nOwn cmux on Windows/Linux end to end: C++, installer, auto-update, crash reporting\nPort the Ghostty-based terminal core and agent-orchestration features (vertical tabs, notification rings, splits, CLI) to Windows\nMake performance feel native: startup time, GPU rendering, input latency\nDogfood, test, and verify constantly\nWho we're looking for Deep C++ and real Chromium work - ideally you've maintained a fork: carrying patches, rebasing on upstream milestones, debugging in content/ or blink\nRust a big plus (our TUI and networking daemon are Rust)\nYou've shipped or maintained a real Windows desktop app\nBonus: upstream Chromium contributions, Swift/AppKit curiosity, open-source maintainer, former founder\nDetails Compensation: $130k - $170k + 0.5% - 1.5% equity\nBenefits: Health, dental, and vision insurance\nLocation: San Francisco\n\n#J-18808-Ljbffr","datePosted":"2026-09-09T03:44:33.413Z","dateModified":"2026-09-09T03:44:33.413Z","hiringOrganization":{"@type":"Organization","name":"Cmux","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"28e72ddc3eadee35aab7bdc5"},"url":"https://jobsearcher.com/jobs/28e72ddc3eadee35aab7bdc5"}}