Mobile App Developer (React Native / Expo) St Leonards, Sydney | Hybrid | Contract until June 2026 We are seeking an experienced Mobile App Developer to support and enhance a production mobile application used by a large public sector organisation. This is an exciting opportunity to work on a cross-platform mobile app deployed to both iOS and Android , built using React Native and Expo , and integrated with enterprise APIs and identity platforms. You will work closely with a Technical Development Lead, Product Owner and QA team , while acting as the dedicated mobile developer responsible for maintaining and improving the application. The Role In this role you will: Support and maintain a production mobile application Implement improvements, bug fixes and feature enhancements Ensure ongoing compatibility with mobile platform requirements Integrate mobile applications with backend APIs and enterprise authentication systems Troubleshoot and resolve mobile build and environment issues Contribute to mobile release management and app store deployments Key Technical Skills Core Mobile Development Strong experience with React Native and TypeScript Experience working with Expo (managed and native workflows) Experience developing and maintaining cross-platform mobile applications (iOS & Android) State Management & Data Experience with React Query Experience with Zustand or similar state management libraries Strong understanding of mobile application architecture and lifecycle API Integration Experience integrating mobile apps with REST APIs Understanding of secure API access using JWT tokens Authentication Experience implementing OAuth / OpenID Connect Experience working with Azure AD B2C or similar identity platforms Mobile Tooling & Deployment Experience with Node.js and Yarn Experience troubleshooting builds using Android Studio / Gradle and Xcode Experience deploying apps to Apple App Store and Google Play Store Nice to Have Experience with mobile notifications Experience integrating with headless CMS platforms Experience working in government, healthcare, or regulated environments Experience with mobile analytics or Firebase Work Environment Hybrid working model St Leonards office location (close to public transport) Set office day on Mondays , with additional in-office days as required.
