Jeff Mealiffe is a Principal Program Manager on the Office 365 engineering team. He has over 14 years of experience building, optimizing, and validating components of Microsoft products, and through most of his career he has focused on Exchange. He is recognized as an expert on Exchange performance, scalability, and capacity planning, and is sometimes known as “The Perf Guy” based on his posts to the Exchange team blog. His current position on the Office 365 Customer Adoption Team (CAT) is focused on strategic projects across multiple Office 365 workloads and working directly with some of our largest customers to ensure their Exchange deployments are running as well as possible. He regularly works one-on-one with customers, and speaks to large audiences at technical conferences about the Exchange product. Jeff came to Microsoft after managing a large scale messaging system for a public sector agency in Southern California. His academic background included coursework in artificial intelligence, neural networks, and computational linguistics, and he holds a BS degree in Cognitive Science with a specialization in Computation from the University of California San Diego.