Software Engineer

Open Posted on May 13, 2026

At a glance

Pay
$76k – $126k/yr
Type
Full Time
Location
London, GB
Posted
May 13, 2026
Company size
Startup (1-50)
Industry
Retail & E-commerce

About the 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 1product 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

About SigmaOS

SigmaOS
Retail & E-commerce · Startup (1-50)
YC Backed

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