Dear Hiring Manager,
I'm writting articles currently, and I'm very interested in your job post involving these skills.
I believe my skills would be ideal for your project.
I am available to chat by IM, email or Skype, and would be happy to set up a convenient time to discuss the application you're moving and some ideas about the safest way to get it done. I will be available 30 hours per week for this position.
I am comfortable with the payment and terms you offered.
Regards,
Ali Arbab