Wakecart for online stores -- 2

I am the owner of an online store and am currently using Shopify as my platform. I am seeking help to set up my store, and need someone to integrate a payment gateway. Furthermore, I require the integrations of a gift card/coupon system for my shop. All of this should be done in a way that maximizes search engine optimization (SEO), allowing potential customers to find my store more easily. If you believe you have the skills to help me out, I look forward to hearing from you.