Content Writer for WordPress

I'm looking for a content writer who can write 3 blog posts per month. Furthermore, it should be more than 3000 - 5000 words. The person should be well-skilled in SEO and should be able to add proper keywords to rank higher on Search Engines. He/She should have knowledge of WordPress and also write proper content writing with all the necessary skills and tools to write a clean and well-optimized blog.