UrbanClap-like Multi-Service App Development

I'm looking for a professional mobile app developer to create an app similar to UrbanClap and service providers should be able to post their services with the cost. This app should cater to various services such as home cleaning, plumbing, electrician, beauty, cooking, auto, and more. The app should be developed for both iOS and Android platforms.

Key Features:
- Integrated payment portal for seamless transactions
- Content filter to prevent illegal activities
- Support for multiple service categories

User Roles:
- Customer: The one seeking services
- Service Provider: The one offering services
- Admin: Not needed for this version

Ideal Skills and Experience:
- Expertise in cross-platform mobile app development
- Experience in creating service-oriented applications
- Knowledge of integrating secure payment gateways
- Ability to implement content filtering systems
- Understanding of iOS and Android development guidelines