Dear sir
Thanks for your check my message.
I am android app talent developer that have a lot of experience in app developing.
If selected for the project, I would like to start immediately and devote my creative suggestions to your project in order to serve you better.
I'm well trained and totally competent ,so that I ALWAYS produce highly satisfactory results and I'm valued highly as a very competent and reliable worker.
I would be happy to provide further information at interview.
I hope I have demonstrated to you my interest and motivation to get involved in your project.
Looking forward to your good reply.
Thank you for the opportunity to submit my proposal for your project.
Best regards.