Need a skilled Andriod developer

I need help combining two apps into one:
- A Unity game (template provided).
- An Android app that uploads photos (camera + WhatsApp) to an FTP server in the background.

Ideal Skills and Experience:

- Strong experience in Android development and APK modification.
- Understanding FTP protocol
- In-depth knowledge of Android's functional modules.
- Ability to ensure that merged APKs maintain stability and performance.
- Familiarity with security protocols to protect data during the merge.
- Experience with user authentication, payment processing, and data synchronization is a plus.

Please provide a portfolio showcasing similar projects.