Minimalist Task Management Android App

I'm seeking an experienced Android developer to create a productivity app with a minimalist design.
i want to get data from apps usage data from app logs data
and send it to a backend server
And whenever an movement happe
or acction in phone
like opening an app or closing an app etc
Key Requirements:
- Expertise in Android app development.
- Proven experience with task management app creation.
- Strong understanding and practical experience with calendar integration.
- Ability to create a clean, user-friendly minimalist design.
- Experience implementing push notifications for task reminders.
- Ability to integrate with external APIs for task synchronization.
- Knowledge in implementing offline mode for uninterrupted task management.
- Proficiency in integrating secure user authentication systems.

Please include examples of similar projects you've completed in your proposal.