The UMass Amherst TRIPODS Institute for Theoretical Foundations of Data Science invites applications for postdoctoral fellowship positions in data science. Specifically, we seek candidates who work in areas broadly related to the UMass Amherst TRIPODS themes, namely: statistical performance and data acquisition in interactive data collection; algorithms and computational models for processing large amounts of data; model robustness, approximate inference and uncertainty quantification. The Principal Investigators are Patrick Flaherty (Mathematics & Statistics, UMass), Markos Katsoulakis (Mathematics & Statistics, UMass), Arya Mazumdar (Data Science Institute, UCSD), Andrew McGregor (Computer Science, UMass), and Barna Saha (Industrial Engineering & Operations Research, UC Berkeley). For more information on the mission, researchers, and the research directions of the Institute please visit our website, tripods.cs.umass.edu.