According to Facebook > Production Engineering at Facebook is a hybrid between software and > systems engineering; it keeps Facebook running smoothly and scaling > efficiently. The Production Engineering team works within Facebook’s > product and infrastructure teams to make sure our services are > reliable and scalable. The team writes code and debugs hard problems > in live production that impact more than 2 billion people around the > world. From backend services like our Hadoop data warehouses, to > frontend services like News Feed, to infrastructure components like > our caching infrastructure, load balancing and deployment systems, the > Production Engineering team keeps Facebook running. as *team works within product and infrastructure* meaning it works between developers and operations.