At Expedia Group, Kaushik Patel and Nikos Katirtzis have thousands of engineers and micro-services. Heterogeneity in terms of infrastructure and technologies used over the years created inefficiencies and posed the need for a set of automated best practices for our engineering teams. Over the past 2 years, using a data-driven approach, we’ve worked on creating a set of platforms that helps teams to adopt good reliability practices, including chaos engineering, release safety, or automatic failover between cloud regions. In this talk Kaushik and Nikos will cover the platforms they’ve built, including how they used data to drive their investment decisions.