Minimalist Mobile App Like OLX

I'm looking for a talented mobile app developer to create an application similar to OLX for both iOS and Android platforms ie React Developer.

Core functionalities should include:
- User profiles and authentication
- Listing and searching items
- In-app messaging between users
- Advertisement management

The design should be modern and minimalist.

Ideal candidates will have:
- Proven experience in mobile app development for both iOS and Android
- Strong UX/UI design skills, particularly in modern and minimalist aesthetics
- Experience with user authentication, in-app messaging, and advertisement management functionalities
- A portfolio showcasing similar projects

Looking forward to your bids!