Flutter App Modification & Store Submission

I'm seeking a skilled Flutter developer to enhance my app. Key modifications include the addition of new features, specifically push notifications, and addressing existing bugs. Ultimately, I need this updated app submitted to both the App Store and Play Store.

Ideal skills for this project:
- Proficient in Flutter
- Experience in implementing push notifications
- Strong debugging skills
- Familiarity with the App Store and Play Store submission process

Please note, the push notifications will primarily be used for promotional messages.