Today, Facebook’s infrastructure supports 900 million users around the world. It has a highly interconnected service, in which rendering a single page often involves hundreds of machines examining tens of thousands of pieces of data from dozens of different servers. And it does all this in a matter of milliseconds, day in and day out. What’s more, the Facebook product team iterates very quickly, and sometimes takes big leaps forward with products like Timeline — which means Facebook’s infrastructure needs to be highly flexible as well. In this talk, David Mortenson will share key learnings from the company’s efforts to meet these challenges and the unique tools and team structures Facebook employs to build a unique experience for a billion users and beyond.