This document discusses building a data-driven culture and infrastructure from the ground up. It describes an R&D and IT consultancy firm that works with Silicon Valley startups. The firm has a hardcore big data analytics team in Kazan. It outlines how different roles on a data-driven team, like product managers, engineers, and data scientists, interact with data and metrics. It also presents different levels of infrastructure for handling and analyzing data, from micro to big systems, involving technologies like Kafka, Spark, Redshift, and Hadoop.