How We Merged the Data of Delivery Club and Yandex Eda in Two Months

The team had an ambitious task: to combine two full-fledged data warehouses Delivery Club and Yandex Food in just over eight weeks and, before backend integration, to provide reporting with basic business metrics and data on Delivery Club. Olga will tell how they implemented this project, how they collected the task scoop, evaluated them and adjusted in the process. She will also talk about the technical implementation of improvements on DWH: what solution architecture was invented, what stack was used and why. Of course, there were some pitfalls: we will discuss which ones were stepped on and how to avoid them.