Software Engineer

Software Engineer at SigmaOS — London, GB

  • Company: SigmaOS
  • Location: London, GB
  • Employment type: FULL_TIME
  • Salary: USD 75500–126000 / year
  • Posted: 2026-07-17

About this role

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

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