Mini Flutter Task Management App

I'm looking for a skilled Flutter developer to create a mini personal productivity app focused on task management. The app should be compatible with both Android and iOS platforms.

Key features should include:
- User authentication (sign up, log in)
- Create, edit, delete tasks
- Mark tasks as complete
- Organize tasks by categories or due dates
- Push notifications for reminders

Ideal skills and experience:
- Proficiency in Flutter development
- Experience with mobile app design and UX/UI principles
- Familiarity with task management app functionalities
- Knowledge of backend integration for user data management
- Ability to deliver within budget and on time

Please provide relevant portfolio examples. Looking forward to your bids!