Abstract: How to use Airflow beyond plug and play, build it both for developers and customers to achieve a smooth experience. A talk about how we build scalable big data tools at Klarna using Python. We are a team that provides the tool to a large part of Klarna and it is used to take bold decisions with confidence. I believe we have built a great way of working with Airflow that is not the ordinary way to do it. We have built a tool to enrich the users with features to make their development easier and tested before runtime. Our version also lets our developers of the tool to work in a more test-driven way. Speaker: Kevin Neville