Jonathan Mace is a Ph.D. candidate in the Computer Science department at Brown University advised by Professor Rodrigo Fonseca. His research centers on how to understand and enforce end-to-end behaviors in distributed systems. During his Ph.D. he was awarded the Facebook Fellowship in Distributed Systems, and he received a Best Paper Award at SOSP for his work on Pivot Tracing. Jonathan received his undergraduate degree in Mathematics and Computer Science from Oxford University in 2009