Senior Mobile Engineer (React Native) – Health & AI

About the role

We are looking for a Senior Mobile Engineer to own and modernise a long‑running consumer health app for iOS and Android. You will work closely with product, design, clinical, and backend teams to deliver new features and integrate AI‑powered capabilities.

Key responsibilities

• Design and develop the mobile app and cross‑platform stack using React Native.
• Migrate a legacy Cordova/Kendo/Redux hybrid app to a modern React Native architecture.
• Manage performance, stability, releases and app‑store submissions.
• Collaborate with product, designers, clinicians and backend engineers to ship features.
• Help surface upcoming AI/LLM‑powered features in the app UI.

Required profile

• Strong experience with JavaScript/TypeScript, React, React Native and modern tooling (Expo, Vite, Vitest).
• Comfortable debugging native iOS/Android issues (Swift, Objective‑C, Kotlin, Java).
• Solid experience integrating REST APIs, managing async state, and writing tests for mobile/front‑end.
• Good understanding of mobile lifecycles, signing, and store releases.
• Willingness to act as a broader software engineering generalist when needed.
• Clear, concise communicator and comfortable with a hybrid work model (3 days onsite in Manchester).

Required skills

• JavaScript
• TypeScript
• React
• React Native
• Expo
• Vite
• Vitest
• Swift
• Objective‑C
• Kotlin
• Java
• REST APIs
• Async state management
• Mobile testing
• App signing and store release processes