Email marketing, website management/editing, sales funnels

Hi there, we are looking for someone to do email marketing for our website (specials offers, sales, etc), once a month newsletter to people who has already subscribed to update any news. In addition, editing the website (shopify) in the back end whenever we need to update or make changes to the website. Even better if you know about and can build/make any changes for sales funnels and upsells during check outs.