E commerce website

I am looking to build a custom Ecommerce website and need help from a skilled freelancer. I have determined that the website needs to integrate a Payment Gateway, as well as require help with setting up digital marketing for it. This could involve Shopify, WordPress, or Magento. I need someone who is experienced in working with these platforms and knows how to develop a website from start to finish. The ideal freelancer will be able to configure the Payment Gateway, manage the inventory, integrate the shopping cart, and handle any other details necessary for a smooth-running website. An expertise in digital marketing is also essential, so I need someone who can setup my website with the relevant social media accounts and other promotional methods. Ultimately, I am looking for a complete solution so the website can attract customers and drive sales.