Android Mock Test App Development

I'm looking for an experienced Android developer to create a mock test app for my students. The app will feature sections for short tests, full tests, and will be updated on a daily basis.

Key Requirements:
- Android compatibility
- Sections for short tests and full tests
- Daily updates through manual input via an admin panel

Additional Features:
- Timer for each test
- Progress tracking
- Leaderboard

Ideal Skills and Experience:
- Proficient in Android app development
- Experience with creating admin panels for content management
- Knowledgeable in implementing timers, progress tracking, and leaderboards within apps

Please share your portfolio with relevant projects. Looking forward to your bids!