article writting and blog submission

We're looking for English speaking writers who can write four 300 word, unique, SEO-style articles about our site and how our site operates. Keywords and details will be assigned to you upon the start of employment. FOUR original, keyword-based articles. The articles must be written using British English. And then, I need these articles submmitted to 50 blogs at the first step. The requirements include: - Appropriate keyword or key phrases selection. - Number of words required is listed in the article type. - All articles must be 100% unique. - All articles must pass copyscape and any other plagiarism detection tool. - Prefer a unique title for each article. - All articles must be written in Grammatical Correct English. - The article writting work must complete within 5 days. And the blog submission work should be done manually, and at least devided to submit in 5 days to avoid to be regarded as SPAM by search engines. It will be better for us to understand your ability and experience if you can identify yourself to us when bidding, for example cases that can prove your experience in writing, link building, your blog resources and some other information as well.