Android School Management App

I'm looking for an experienced Android developer to create a standalone school management app, primarily focused on school fee management. The app should be able to operate on 3 to 4 mobile devices and sync data via Wi-Fi or Bluetooth.

Essential Features:
- Fee Collection Tracking: Monitor and manage all aspects of fee payments.
- Due Date Reminders: Automated notifications for upcoming payment deadlines.
- Payment Records Management: Detailed logs of all transactions.
- Student Personal Details: Comprehensive profiles including contact info, grades, etc.
- Parent and Staff Details: Information management for all associated adults.
- Attendance Management: Track student attendance.
- Data Backup: Ensure all data is securely backed up.
- Print Fee Receipts: Generate and print receipts for transactions.
- Syncing: Required to sync data between 3-4 devices via Wi-Fi or Bluetooth.

Ideal Skills and Experience:
- Strong background in Android app development
- Experience with data synchronization across multiple devices
- Familiarity with database management and secure data handling
- Ability to implement user-friendly interfaces

Looking forward to your proposals!