Article writing

I am looking for a freelancer to write articles for me. The expected word count is more than 600 words. Topics for the articles have already been decided upon and need to be SEO optimized as per my requirement. The topics are within my niche, so experience and familiarity with the subject is a must. Keywords for optimization should be chosen carefully for maximum visibility and reach. Timely completion is also important. If you think you have what it takes to fulfill this assignment, I would be delighted to have your application.