Article writer needed

I need writers for long term who can write on varied topics. The word length may vary from 250 words to 700 words. The articles should be original and should pass through copyscape. I will select 2 to 3 writers at a time as I have loads of work. The topics may range within titles like health and fitness, computers, etc. please place a bid for 400 word article along with your sample work. freshers are also welcomed.