The UMass Amherst TRIPODS Institute for Theoretical Foundations of Data Science invites applications for postdoctoral fellowship positions in data science with a start date of January 1, 2020 or later. 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 Arya Mazumdar, Andrew McGregor, and Barna Saha in Computer Science and Patrick Flaherty and Markos Katsoulakis in Mathematics & Statistics. For more information on the mission, researchers, and the research directions of the Institute please visit our website, tripods.cs.umass.edu.