OLX-like App with Dashboard

I'm looking to develop an app similar to OLX, which will allow users to list general items for sale. The app should include:

Core Functionalities:
- Product listings
- User accounts and profiles
- In-app messaging
- Custom designs

Service Categories:
- All business services
- Products
- Flash sales
- Link sharing

Ideal Skills and Experience:
- Experience in developing marketplace apps
- Strong UI/UX design skills
- Proficiency in backend and frontend development
- Familiarity with in-app messaging systems
- Ability to create custom designs based on client requirements

Please provide examples of similar work done.