Interim Mobile Application Developer - React Native / Expo

taken existing React Native applications through SDK upgrades,security remediation, build fixes and App Store / Google Play re-submissionFully remote but needs to be UK basedThis is a short-term Mobile Application Recovery / Modernisation assignment rather than a conventional "App Developer" role.I urgently need someone who has actually taken existing React Native applications through SDK upgrades, security remediation, build fixes, and App Store / Google Play re-submissionOur client, a UK business within the construction industry, has a customer-facing mobile application for iOS and Android that needs urgent technical recovery. Built with React Native, Expo, and ASP.NET Core, the app provides customers with smart telemetry data from units-energy consumption, CO2 emissions, and asset tracking-but is currently unavailable on both app stores due to outdated SDKs and unresolved compatibility issues. This is a temporary role offering an initial 3-10 day assignment to stabilise the application and return it to production, with the opportunity for ongoing monthly support thereafter. The position is remote, and the successful candidate will take full ownership of the existing codebase, identify root causes, and manage the release process to both stores.Take ownership of an existing React Native application, diagnose critical issues, and restore it to both the Apple App Store and Google Play StoreInitial 3-10 day assignment with potential for ongoing 1 day per month maintenance and ..... full job details .....