Ecommerce website designer

I am looking to hire someone to design an ecommerce website for myself. I have some ideas for the look and feel I would like, but I need someone to bring it to life. I have chosen Shopify to be the platform I will be building my website on. I'm also not sure if I need any additional services such as hosting or payment processing, but I wouldn't turn down some guidance in that area. As far as branding assets go, I have some things started but I need help finishing off the look.