🚀 Mid–Senior Full Stack Engineer (React Native + React/Vite + Ruby)

🚀 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 developmentTech StackBackendRuby on RailsPostgreSQLMobileReact NativeTypeScriptExpoWebReact Native for WebViteInfrastructureAWSQoveryGitHub ActionsSentryDatadogAI ToolingCursorClaudeWhat we're looking forRequired4+ years' experience as a Full Stack EngineerStrong React experience, including production use of ViteComfortable shipping features end-to-endEnjoy working in fast-moving, ambiguous environmentsStrong ownership mentality and ability to work autonomouslyNice to HaveRuby on Rails experienceReact Native experiencePrevious startup or founder experienceWhy 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 usersInterview ProcessIntroductory call with the CTOFollow-up conversation with CTO + CEOPaid 3-day trial working on real product challengesWe're actively interviewing and can move quickly for the right candidate.