We are looking for an experienced freelance mobile app developer to take ownership of the final stage of our mobile app project, which is approximately 90% complete. The app is built using React Native with a Node.js backend and a web-based admin portal that is already developed. The remaining work involves integration validation, fixing missing elements, end-to-end testing, and preparing the project for complete handover. This role is ideal for a freelancer who is confident working with existing codebases and can independently close out a project professionally. Scope of Work Review existing React Native mobile app code Validate and complete integration with the web admin portal Identify and fix missing UI or functional elements API testing and validation with Node.js backend End-to-end testing (Android; iOS if applicable) Bug fixing, performance optimization, and stability improvements Prepare production-ready builds (Play Store / App Store) Complete handover, including: Full source code (Git repository) Environment & setup documentation Build and deployment instructions Basic technical documentation