React Native and React Developer for Health and Impact Measurement Platform (iOS, Android, Web)

About Biiah Biiah is a UK-based SaaS platform that measures the impact of arts and culture programmes on health and wellbeing, using the same research standards as clinical trials. Our platform serves organisations that run choirs, workshops, festivals and conferences, and it brings together survey data, attendance and wearable biometric data into insights for each programme. The role We are looking for an experienced front-end and mobile developer for a defined project across our product suite. Our mobile app, client web app, internal web app and SaaS web platform are designed to work together as one experience, so you will be working across all four with an eye on how they connect. You will join a team of four: our CEO, who is also Product Owner, our Project Manager, and our backend developer, who looks after our Django API. You will report to the CEO and the Project Manager. Key project outcomes - Mobile app: stabilise the React Native app for iOS and Android by making several critical updates and pushing them live through the App Store and Google Play - Main web app: stabilise the app and improve its usability SaaS web platform: update the Lovable-built platform, connected to our Django REST API, so it is ready for launch What this may involve - Bringing Android to full parity with iOS - Building features across our three programme types: recurring groups, single events and complex multi-event programmes - Wearable integration through Apple HealthKit and Android Health Connect (heart rate, HRV, sleep, respiratory rate) - Survey flows, attendance tracking, music library and in-app member features - Subscription and add-on gating in the UI, connected to Stripe Essential experience - 8+ years general software development experience - 3+ years with React Native, with apps you have shipped to both app stores - Strong React and TypeScript - Integrating front ends with REST APIs, including authentication and permissions - Comfortable picking up and refactoring an existing codebase - Clear written communication and reliable async working