Experienced Developer Needed to Finalise Existing Emergent Built App for Launch

I have an existing mobile application that is approximately 70% complete and am looking for an experienced React Native / Expo developer to help bring it to launch readiness over the next month. The app has been built using a vibe coding through Emergent, with a clear product vision, user flows and core functionality already established. This is not a project that needs to be built from scratch. I’m looking for someone with strong technical expertise, excellent attention to detail, clear communication skills and experience working with React Native, Expo and modern backend integrations. Key tasks include: • Improve the accuracy, usability and presentation of an existing Statistics page • Review and refine a custom points/allocation algorithm • Improve the functionality and user experience of a My Tasks / To Do page • Identify and resolve bugs throughout the app • Fix text string, formatting and UI inconsistencies • Improve onboarding flow and overall user experience • Resolve backend data persistence issues (information not always saving correctly) • Implement notification functionality and notification rules • Build a feature that can convert either: • a screenshot/image into a task or reminder, and/or • a voice note into a task or reminder • Conduct stress testing and quality assurance • Improve overall polish, performance and launch readiness • Integrate a payment/subscription platform Requirements • Strong React Native experience • Experience with Expo • Experience integrating APIs and backend services • Experience implementing push notifications • Experience with payments/subscriptions • Strong testing and debugging capability • Ability to communicate clearly and work collaboratively