Mirror Android App on iOS

I am looking to replicate the exact functionality of my current Android application on iOS, ensuring the core features are transitioned without a hitch. This undertaking requires a developer with a keen eye for detail and an in-depth understanding of both Android and iOS platforms. Ideally, you're someone who values precise replication and can navigate the complexities of platform-specific idiosyncrasies.

Essential Features to Incorporate:
- **User Authentication:** Secure login and sign-up processes are vital.
- **Push Notifications:** Timely and relevant notifications to engage users.
- **Beacon Detection:** Identical beacon interactions as on Android.
- **Offline Functionality:** Must operate smoothly without an internet connection.
- **QR Code Scanning:** A seamless transition of this capability is crucial.

Skills and Experience Needed:
- Proficiency in both Android and iOS development environments.
- Strong background in implementing secure user authentication methods.
- Experience with implementing and testing push notifications on iOS.
- Knowledge of beacon technology, especially in transferring existing Android app beacon functionality to iOS.
- Ability to ensure QR code functionalities work flawlessly on iOS.
- Prior experience in developing offline functionalities for mobile applications.

Your expertise will not only transform an existing product onto a new platform but also ensure that the core essence and operability are retained to offer iOS users the same intuitive and efficient experience Android users currently enjoy.