WORDPRESS WEB BUILDER

I am looking to have a WordPress web builder created for an eCommerce website. I already have existing content and media to be uploaded, as well as a need for some special features and functionality like Sales & Marketing Tools. My goal is to create a unique website to showcase products and gain more customers. It needs to be user friendly, modern and visually appealing. The right individual or team should have extensive knowledge in developing and designing WordPress websites, as well as creating Sales & Marketing Solutions. The web builder should be secure, efficient, and feature rich. Plus, it needs to be ready to link to a secure payment system. To summarize, I am in need of a WordPress web builder with features such as content and media uploading, eCommerce capabilities, Sales & Marketing Tools, and a secure payment system integration.