When you build a backend to a web app or mobile app, you want to focus on your business logic, not on your infrastructure. At the same time, you want the infrastructure to always be there for you, ready to run your code. Google Cloud Functions does that for you. In this talk, we will follow the story of the fictional startup "In Jest", publishers of an app that tells jokes. At first, the developers at "In Jest" need to get a minimum viable product up and running in an hour. As their business grows they will have to integrate with Google Sheets, SQL databases, analytics systems, marketing systems and so on. We will see the code used to make this happen, without having to worry the team about servers and data centers.