Tomas from the Shopify Guru team here!
If you are looking to hire someone to manage the SEO for your Shopify store, I would suggest checking our list of Marketing Shopify Experts. They will be able to help you optimise your SEO and drive more traffic to your store.
You can also check out our SEO docs if you want to see all the SEO features you can optimise within Shopify yourself, along with the Beginners Guide to SEO by Moz and more advanced SEO Optimisation for Themes developers.
I hope you find this helpful,