Reverse Engineering on an Android/IOS App

I'm in need of a proficient developer who can create a mobile application capable of generating attestations for both Android and iOS platforms. The app should be designed to meet the highest standards of security and should serve as a tool for identity verification, access control, and document validation.

Key requirements and responsibilities:
- Creation of a cross-platform attestation generation app for Android and iOS.
- Ensuring that the app is equipped with top-notch security features.
- Aiding in the set-up of a user-friendly interface for ease of use.