Senior Android

We are looking for a senior Android developer (Kotlin, native) to help stabilize and improve an existing production app in the wellness/audio space.
This is not a new build.
You will be stepping into an existing Kotlin codebase.
Our iOS developer is currently improving the audio player and in-app purchase (IAP) flows, and we need a strong Android developer to implement equivalent stability and behavior improvements on the Android side.
Current Tech Stack
Native Android (Kotlin)
ExoPlayer (audio playback)
Google Play Billing (subscriptions)
Laravel backend (API-based)
Initial Focus Areas
Audio player stability
Background playback behavior
Audio focus handling (calls, Bluetooth, other apps)
Resume after interruption
Lifecycle management
Edge-case crash prevention
In-App Purchases (subscriptions)
Google Play Billing integration
Purchase acknowledgement
Restore purchases
Subscription state handling
Debugging edge cases
Gener...