Hi, How are you?
Thanks for your job posting here.
I am very happy because I can expect that you can give me chance to serve for you. From your job description, you are just seeking me, I am very good for your requirement of your project.
For the project budget and time frame, I will suggest you the best option for you.
My strong skill is social media, social networking, own backend, RoR, PHP, Geo Location Integration, Google Map APIs, Payment processor.
Let me explain why I can become your best candidate for your project.
I hope to drink the coffee with you while interviewing for your project details on the Skype.
Thank you very much for reading my cover letter.
Sincerely,
From Ren He.
P.S: I can even provide test step so that you can believe my skills for your project, So please do not worry anything for the quality and development speed problem. I am looking forward you.