Hi,
I read your job description and truly believe that I am the one you are looking for. I do have the necessary google spreadsheets and services experience that will help me finish your job asap and as expected.
As for my related experience. I'm a professional C# and Javascript developer with tens of simple and sophisticated applications created. I have my private business and e-commerce website which I manage through desktop applications, external & REST APIs, google services, formulas and scripts. The tasks varied from website automation, data extraction, analysis, creating reports, etc.. .
I'm available to work on your job right away.