Mobile app

I'm looking for a talented and experienced mobile app developer to help me build an app that will support both iOS and Android platforms. This app will serve as an e-commerce platform for users to easily buy or sell goods and services. The primary function of the app should be tailored to this purpose. I have a specific design idea in mind that I would like the developer to bring to life, though I am open to ideas as well. Overall, I want a user-friendly and aesthetically pleasing app that is easy to navigate. If you think that you have the knowledge and skills necessary to deliver my vision, please let me know.