Android Password Manager App Development

I'm in need of a skilled mobile app developer for creating a password manager application on the Android platform.

Key Features:
- Password Storage: The application should securely store passwords.
- Auto-fill Functionality: The app should have the capability to auto-fill passwords on user command.

Security Features:
- Biometric Authentication: The app should integrate biometric authentication for enhanced security.
- Two-factor Authentication: Implementation of two-factor authentication is a must for additional safety measures.

Ideal Skills and Experience:
- Proven experience in Android app development.
- Prior work on security-focused applications, particularly password managers.
- Knowledge and experience implementing biometric and two-factor authentication in apps.
- A strong portfolio featuring apps with auto-fill functionality.

Please provide examples of similar projects you've worked on in your proposal.

The app should include encrypted backup options for data safety. The design should be feature-rich and interactive.