Technical marketing content editor for IoT software startup

Please help! As US marketing director, I've got way too much on my plate to edit and polish all the content our team produces back in overseas HQ--blogs, tutorials, customer stories, product documentation, paid article placements, etc. On top of the usual problems of clarity and effectiveness, English word choice and grammar often need significant rework. I need a competent editor who can improve the readability of our content and verify its technical correctness. The target audience is IoT, enterprise, and open-source developers and managers.

Scope of work: Weekly technical marketing content editing. Potential to author original content once familiar with product. Part-time work available through Q1 while I work to find a permanent hire.