I have been gone through with your project description and found that you need HTML and WebAPI with Google Scripts work.
I have over 5+ years of experience in .Net platform using C# language and Google Scrtips with knowledge in different domain like Realtime, Database, IoT, Web development.
I have good Analytical and Communication skill with design of cost effective and robust applied solution.
Let's talk further on chatbox, waiting for your reply.
Thanks for Attention !!!
Veerendra