React Native Mobile Engineer in Bristol

We started Cognito because traditional textbooks were dry, revision sites were fragmented, and private tutors were inaccessible to most students. Today, over 1 million students use our platform to master GCSE and A-Level sciences and maths, completing hundreds of millions of questions. We’ve grown from a YouTube channel (now 40+ million views annually) into a comprehensive learning platform with 100,000+ monthly active users.

What You’ll Actually Do

• You will be adapting our existing mobile web experience into a native mobile app using React Native and Expo.
• Your focus will be on building an exceptional mobile experience, working closely with our product designer and engineers to adapt or rebuild patterns for mobile.
• Build our React Native app using Expo, delivering to both iOS and Android.
• Own the entire mobile delivery pipeline – EAS Build, CI/CD, TestFlight, Google Play Console, app store submissions, OTA updates, and release management.
• Implement Duolingo‑style gamified learning experiences that combine learning science with engaging, habit‑forming interactions.
• Implement mobile‑specific features: offline support, push notifications, deep linking, and native device capabilities.
• Set up crash reporting and monitoring (Sentry or similar) to maintain app quality.

Requirements

• 3+ years of React Native and Expo experience – you’ve shipped production apps using Expo, handled app store submissions to both platforms, and are comfortable with EAS Build, EAS Submit, and OTA updates.
• Strong React and TypeScript skills – you understand modern React patterns and can work effectively in a TypeScript codebase.
• Experience with GraphQL APIs – ideally Apollo Client, but experience with other GraphQL clients is transferable.
• Good eye for design – you can implement pixel‑perfect UIs from Figma while understanding iOS and Android platform conventions.
• AI‑native workflow – you actively use Cursor, Claude, MCPs, etc. throughout your development.

This is how we work

• Fully remote across the UK – typical hours 9am‑5:30pm with flexibility around what works for you.
• AI‑forward – we expect you to use AI tools throughout your workflow. It’s part of how we stay fast and competitive.
• Fast‑paced but sustainable – we ship quickly and iterate based on real student feedback, but we’re not a burnout culture.
• Light on process – no unnecessary meetings or bureaucracy. Short ad‑hoc calls when needed, daily standups, and focus on shipping.
• Direct impact – your work will be used by hundreds of thousands of students. You’ll see the difference you’re making.

Benefits

• Salary – competitive salary with regular reviews.
• Holiday – 25 days + bank holidays.
• Equipment – we’ll provide whatever you need to do your best work, plus physical iOS and Android devices for testing.
• Flexibility – typical hours 9am‑5:30pm, but flexible around what works for you.
• Modern work culture – no unnecessary meetings or bureaucracy, focused on building things that matter.

How To Apply

To apply for this role, please complete the application form. We’ll aim to review applications and get back to you within two weeks, not counting the Christmas break (22nd December – 5th January).

Our hiring process:

• Application review – we’ll review your CV, work examples, and application responses.
• Initial conversation – either a 10‑15 minute screening call or a short video about a project you’ve worked on.
• First interview – conversation with the team to discuss your experience and approach.
• Next steps – depending on how things go, this might include additional interviews or a paid technical assessment.

Seniority level: Mid‑Senior level

Employment type: Full‑time

Job function: IT Services and IT Consulting