Gold & Jewelry and luxurious watches buying and selling and Auction App

I'm looking for an experienced app developer to create a gold and jewelry auction application similar to Catawiki, available on iOS and Android. The app should also support both Arabic and English languages.

Key Requirements:
- Platforms: iOS and Android
- User Authentication: Email and password login
- Main Category: Gold jewelry (focus only on gold jewelry)

Ideal Skills and Experience:
- Proficiency in mobile app development for both iOS and Android
- Strong experience in implementing secure user authentication
- Ability to integrate multilingual support, specifically Arabic and English
- Previous experience in developing auction or marketplace apps is a plus
- Strong UI/UX design skills to ensure a user-friendly experience

Please include examples of similar work in your bid.