website for cloud hosting , with shoping cart and checkout

I am in need of an expert for a website design project like azure. The website will be built for cloud hosting, and will include a shopping cart and checkout capabilities. I would like the design of the website to be sleek and modern. Additionally, I'm looking for it to have advanced e-commerce functionality. To make this happen, I prefer it to be built using the Shopify platform. Whoever I work with must be experienced in website design, e-commerce platforms, and cloud hosting technology. As a result, I'm looking for someone who is able to build this with the highest quality design, functionalities and security.