Hi,
Let me tell you my self,
I have more than 2 year experience in google app script and I had integrated google sheet with the API integration and also I have knowledge of the google sheet in how data will be extract and also manage via using google script in backend. So let me know if you are interested.
Also, I am well versioned with scripting in Google spreadsheets using Apps script, writing custom functions in Google spreadsheets, creating charts, custom functions, linking spreadsheets etc.
I would be happy to answer any queries that you may have.
Looking forward to your response.
Thanks
Raj.