Simple 4D webpage

I am looking for a skilled web developer to create a simple 4D webpage that will primarily focus on selling my product/service. While I do not have a specific design in mind, I have some ideas that I would like to discuss with the developer. The webpage will require user registration, Credit Purchase for ewallet, Hide Customer Details etc. as an essential feature. I would also like to include a contact form for potential customers to get in touch with me. The ideal candidate should have experience with web development, user registration, and creating payment gateways.