Content writer needed both on technical and commerce niches

I need content writers for my project. I have 2 sites on recent technology of mobile phones, laptops and computer accessories and the other sites on various information of loans and real estates. For the technical sites you have to write the specifications and features of the electrical accessories. I need 100% accurate and authenticate contents. No junk contents are allowed. So you have to know the basics on electrical equipment. For second site you have to know about the loans and the terms and conditions of loans. You have to have the convincing power to motivate the readers. Your articles should be well written without any kind of grammatical errors and they must be non plagiarized. The articles should interesting to read and they must be written with good sense. I need native English speakers with good control over English. Freshers are welcome but you must have to proof the English skills. My rate is $1.25 for 500 words and this rate is fixed. If you are not satisfied with this rate then please don't bid on the project. My last word is that no plagiarism will be allowed