Hello Sir/Mam,
Thank you for reviewing my job proposal.
As per your job description, I am glad to let you know that I am able to design and develop Billing System as per your requirements, I have worked on inventory script from Themeforest so I am very interested in submitting my job proposal.
If you are available to initiate chat then I am ready to start your work asap. I am sure that you will be happy when I complete this project within given time.
I can start your project immediately and let me know if you would like to discuss further with me.
With a Positive Hope!
Arvind Vashisat
Note:- Payment after job completion.