SMS Auth Testing & APK Build

I'm seeking an experienced developer to finalize and test my SMS authentication setup, and prepare the app for Play Store deployment.

Requirements:
- Verify and ensure OTP functionality (currently facing "OTP not received" issue)
- End-to-end testing of the authentication flow
- Build and publish the APK on Play Store

Ideal Skills and Experience:
- Proficient in Java
- Experience with SMS authentication
- Strong error and method handling skills
- Familiarity with Play Store publishing

The app is already functional with all other features working well. Your expertise will help ensure a smooth rollout.