Article writer required for ezine

I need a writer to write articles on ezine. They must be good quality articles and of techical nature. I expect the articles to include 400 words, set keywords 4-5 and also the writer must have a platinum account to ensure inclusion. Only included articles will be paid for. Total articles required are 20. Copyscape proofed. Please do not bid on this project if you dont meet the above. There will be an initial milestone payment of 50% and remaining when the articles are found to be included.