Dear Employer,
I have done many similar project very close to what you planing to do recently with Google App Scripts and Google sheets, you can have closer look at my profile section. I have more than 6 year of experience with data analyzing and spreadsheets so I am capable enough to deliver the required product.
So I am looking forward to discuss more details. I can start the work right now, then we have more than enough time to do the bug fixing and final touchups.
You can check my profile for more details and feel free to contact me anytime.
Thank you