Flutter App Bug Fixes & Feature Implementation

I'm looking for an experienced Flutter developer to help fix bugs in our app and implement new features using our provided API. The main focus will be on addressing functionality issues, and we also need to add user authentication and push notifications.

Key requirements:
- Expertise in Flutter
- Experience with bug fixing and feature implementation
- Familiarity with integrating functionalities like user authentication and push notifications

Please note, the project involves:
- Fixing bugs related to the app's functionality
- Implementing new features including user authentication and push notifications
- Using our API to integrate these changes

Images of the app are provided for reference.