Android App - Bug Fixing & Feature Expansion

I need a skilled Android developer to help me fix some bugs and add new features to my app. The specific tasks include:

- Implementing Push Notifications: These will primarily be Reminder Alerts.
- Creating a Popup: This could be for various purposes, but creativity and UI/UX understanding will be crucial.

While the details of the bugs are not specified, I expect the freelancer to identify and resolve any potential issues that could hinder the app's performance.

Ideal candidates should have:
- Extensive experience in Android app development.
- Proven track record in bug fixing.
- Skills in implementing push notifications and creating popups.
- Strong UI/UX understanding.