Content Writing and SEO for Blogs

I need a blogger, Who will write high quality unique & SEO friendly articles for 3 different blogs. He will do link building works and moderate 3 fb groups & pages as well to increase group members & likes. This is a everyday job. Plz do not bid if you are a contractor. Blogs may be on - 1) Technology (Website development, Software development, SEO, domain, hosting, internet) 2) Jobs & Career (visa, student Visa, pert time/full time job, career tips) 3) Health & Fitness and insurance (Keywords and blog links will be given later, blogs are made in blogspot) Article Quality: high quality, Copy-scape passed, unique & SEO friendly, weightfull, manually written articles Article length: 700 Words Duties: (3) A) 1 SEO friendly Article writing per day B) 10 Back-link building in 6+ google rank and site must be in related niche. C) maintain and sharing 3 fb groups & pages (I will pay every 7 days after, If you don't provide tasks properly, I will not pay you) I may give you up to 25 USD for 7 days. But is is random job. Blogs must be updated with new posts everyday with articles. And no robot and machine should be used.