Flutter App with Custom Authentication

I'm seeking a skilled Flutter developer to create a unique authentication app. This app is designed to set up a fingerprint and pattern or fingerprint and PIN during the first launch.

Key Features:
- The app will prompt for authentication in subsequent launches.
- It provides a list of all installed apps, each accompanied by two image buttons that highlight in blue when selected.
- One button features a locked lock, which permits the user to set the previously established authentication for the selected app.
- If the authentication does not match, an error screen is displayed prompting for authentication once again.
- The second button allows the user to bypass authentication entirely.

Initial State:
- At the outset, all apps will have the open lock selected.

User Experience:
- The design will require moderate customization with some unique design elements.

Authentication Methods:
- The app needs to support 'Fingerprint and pattern' and 'Fingerprint and PIN'.

Ideal Skills:
- Advanced proficiency in Flutter.
- Experience in developing apps with custom user interfaces.
- Proven track record in implementing various authentication methods in mobile apps.