Website maintenance

I am looking for a freelancer who can assist me with website maintenance. The tasks that need to be done include updating the content, fixing bugs/errors, and optimizing for SEO. Specifically, I need help with updating the content as it is currently outdated and needs revising. I do not have a content management system (CMS) in place, so I need help with that as well. The ideal candidate will have experience with CMS and website maintenance. They should also have strong communication skills and be able to work efficiently to meet deadlines. They need to also be proficient in Shopify, update slider images, import products from Alibaba etc