I need an experienced mobile developer to hunt down and resolve a series of stubborn bugs that are undermining the current release of my app on both iOS and Android. Users are reporting crashes and unpredictable behaviour in production, so reliability is the top priority. What I already know • The problems present as classic bug-level issues (no new features are required right now). • They occur on both platforms, though the exact triggers may differ. • Codebases are native: Swift for iOS and Kotlin on Android, with a shared REST-based backend (Laravel). What I’d like you to do 1. Reproduce the reported crashes or malfunctions on a range of devices and OS versions. 2. Trace the root cause in the existing code, whether it sits in networking, data persistence, or UI event handling. 3. Patch the code, document the fix, and push clean commits to our private GitHub repo. 4. Build and supply new TestFlight / internal testing APKs so I can validate the changes. 5. Close the loop with concise release notes so my support team can update our knowledge base. Success criteria • No crashes in typical user flows (login, profile update, in-app purchase, and push notifications). • All automated unit tests remain green, with new tests added for each fixed issue. • App Store and Google Play uploads pass review without additional warnings. If you’ve tackled multi-platform bug hunts before and can work fast within Git, Fastlane, Xcode, and Android Studio, let’s get this sorted.