🚀 Mid–Senior Full Stack Engineer (React Native + React/Vite + Ruby)
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🚀 Mid–Senior Full Stack Engineer (React Native + React/Vite + Ruby)📍 Fully Remote💰 £60,000 (€70,000) + Equity We're hiring a Mid–Senior Full Stack Engineer to help scale a rapidly growing AI startup whose products are already used by hundreds of thousands of users worldwide. This is a hands-on role for someone who loves shipping product, moving fast, and taking ownership. You'll work directly with the founders to build and scale mobile, web, and backend systems that have immediate user impact.
What you'll be doing:
- ✅ Building end-to-end features from API design through to production deployment✅ Developing across mobile, web, and backend systems✅ Improving scalability, reliability, and performance✅ Working closely with the CTO and CEO on product direction✅ Using modern AI tooling to accelerate development
- Tech Stack
- BackendRuby on Rails
- PostgreSQLMobileReact NativeTypeScriptExpoWebReact Native for WebViteInfrastructureAWSQoveryGitHub Actions
- SentryDatadogAI Tooling
- CursorClaudeWhat we're looking for
- Required 4+ years' experience as a Full Stack Engineer
- Strong React experience, including production use of Vite
- Comfortable shipping features end-to-end
- Enjoy working in fast-moving, ambiguous environments
- Strong ownership mentality and ability to work autonomously
Nice to Have:
- Ruby on Rails experience
- React Native experience
- Previous startup or founder experience
Why join?
🌍 Fully remote (Founders are based in London - so meet ups here are welcomed)📈 Meaningful equity package🚀 Huge product and engineering ownership🤝 Direct access to founders and decision-makers📱 AI product already serving hundreds of thousands of users
Interview Process:
Introductory call with the CTOFollow-up conversation with CTO + CEOPaid 3-day trial working on real product challenges We're actively interviewing and can move quickly for the right candidate.