Booking Engine App for iOS & Android

I'm seeking an experienced developer to create a cross-platform mobile application for booking various types of accommodations - primarily hotels and hostels, with the potential for albergues. This app should incorporate a booking engine similar to booking.com, a payment gateway for collecting commissions from property owners, and a space dedicated to advertising - where businesses can pay for visibility.

Key Features:
- A robust booking engine
- A secure and versatile payment gateway (supporting Credit/Debit Cards and Stripe)
- An interactive map
- A dedicated advertising space
- Multilingual support

Ideal Skills:
- Cross-platform mobile app development (iOS & Android)
- Experience with booking engine integration
- Proficiency in creating secure payment gateways
- Skills in designing interactive maps
- Multilingual app development experience

Please note, the app is intended for a diverse range of users - from budget travelers seeking hostels to families looking for hotels. The ability to handle a variety of properties will be crucial. Experience in app development for the travel sector will be a significant advantage.