Proofreading and editing of writtings

I'd like to work with a proofreader who will assist me in identifying errors in my writing. I work for a global health organization, and the safety and well-being of our community is a top priority for our company. This proofreader will ensure that our blog writing or articles are correct and reader-friendly.
The reader must have good eyes for details and must be able to spot any sort of error or mistake this will be an ongoing contract as it is a flexible job oppurtunity the reader would only be required to be available for A minimum of one hour daily and 10 hours weekly