I need a Shopify developer

Hi, my store needs a developer. I have a brand name store, who is interested in bringing my products into their stores, and I need a website to WOW them, as well as help bring in more customers. I already have a fully built website which I would like to keep the theme of, but it definitley needs a pick me up, and as well as help with things like SEO. I would like someone who is willing to let me try their services out for the first two weeks, on a trial basis. If evverything works out, and results are coming in, then I will pay for services, plus leave a good bonus for results.