A hyperscale data center can house hundreds of thousands of servers. All that digital infrastructure requires a vast and intricate set of mechanical systems to keep machines running optimally.Juliana Conroy-Hoey is a mechanical engineer for Google data centers in Europe. She determines how to lay out the pipes and ductwork inside data centers for maximum efficiency and sustainability – the scale of which still gives her a sense of awe.Learn more about building your career at a data center.