What SigmaOS does
SigmaOS is a new type of browser designed for founders, researchers, and content creators to make you better and faster at working on the web. You work 7+ hours a day on the web. Buried in a sea of 100+ tabs and 10+ web-apps 🤯, you constantly lose context for why you did what you did, and are always one click away from being distracted. We took apart the browser for you, and rebuilt a new experience from the ground-up, for the FASTEST and most PRODUCTIVE work. ⚡
1 open role
What the role involves
TL;DR Build Chrome extensions system for WebKit in Swift Salary £60-100k in salary and £60-100k in EMI stock options Get great benefits and work from an open space office! Who are we? 🚀 We are a YC company backed by amazing people like LocalGlobe and Carmen Rico building the browser that works the way you do! 🥇 We became Product Hunt’s number 1 product of day, week and month! ❤️ We are a community focused startup that openly builds with all our users who send us feedback and talk to us on our community Does this sound like you? 🤩 Likes to work on fun and interesting products 🧐 Takes ownership of their tasks 🔊 Always communicates when there is an issue or a need Requirements 3+ years industry / startup experience Experience with SwiftUI Experience with JavaScript Experience with iOS / iPadOS / macOS development Bonus points Experience with WebKit Chrome extension API Experience with AppKit Experience with Xcode instruments Experience with GCP / AWS Experience with PostgreSQL What would you be doing? Alongside your incredible team you’ll work on building a browser where people will have a delightful experience while working on it. Build how a browser in 2022 should feel and look like, while smashing any nasty bugs that try to creep in. Work alongside your team to build out and maintain our Chrome extension API that we built for WebKit. All of Chrome’s extensions in a Safari engine! But that’s not all, make cross device syncing a seamless and delightful experience for every SigmaOS user. Finally take charge on making sure SigmaOS’s performance always outperforms the competition! Show me the money We do our best to compensate everyone fairly, therefore we offer choice of stock options vs salary and additional equity on top of your base salary 💰 £60,000-100,000 in base salary 💸 £60,000-100,000 in EMI stock options scheme Perks 🏥 Private Healthcare included 🏡 £1000 for your set up 💻 MacBook Pro for work 📚 £200 per month for mental health, gym, online courses & more 🤰Generous maternity, paternity, and peternity leave
Roles are as last read from the company’s own listings. Openings close without notice — check the date on the listing before you spend an evening on the application.
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Questions and experiences
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Company facts compiled from public sources and last refreshed 9 September 2026. Details change; treat the company’s own site as the authority.