Experienced Flutter Developer for Android App Deployment & Bug Fixing

We are seeking an experienced Flutter developer to resolve critical deployment and functionality issues with our real estate application on Android, targeting successful publication through Google Play. Our app functions correctly during development, but we are encountering significant obstacles in the release process. Specifically, the release build has failed, Google Play has rejected uploads with errors, and the installed app has experienced crashes on launch or failures to load property listings during testing. These delays are severely impacting our launch timeline, and we require an urgent resolution. The selected freelancer will be responsible for thoroughly investigating these issues to identify the root cause, rather than applying temporary workarounds. We need a precise and targeted fix that results in a fully functional release build, compliant with current Google Play requirements. Comprehensive testing of the fixed release version on Android is essential. The developer must confirm that all core functionalities, including property listings, search, listing details, navigation, and integrated services like maps and user sign-in, operate flawlessly post-installation. It is crucial that the existing design and functionality of the app remain unchanged, and the implemented solution must not introduce any new issues or regressions. The ideal candidate will have a proven track record in publishing Flutter applications to Google Play, demonstrating expertise in release builds, app signing, and navigating Play Console requirements. Prior experience with real estate or property listing applications is a valuable asset. Please include examples of successfully published apps and your estimated timeline in your proposal. We require a developer who can start immediately.