"Hello Sir,
Our bid is for developing the backend / Frontend or Mobile application in this job.
Please consider our bid/proposal for this job.
We will start with designing wire-frames for application or backend so that it help both of us to visualize end product and how it will work.
Lets start the job and grow together :).
Thanks for considering us.
Look forward to deliver you best.
Regards,
Shreeya IT Team"