I’m a data science tool builder at Posit, where I work on open source tools for data analysis (like siuba).

Previously, I worked as a consultant building out a data team for Caltrans (and love all things GTFS).

I received a Ph.D. in Cognitive Psychology from Princeton University, and am interested in what drives expert data science performance. This led me to build DataCamp Signal, adapative tests of data science skill.

When not wrangling data, you can find me in Philly writing tiny poems, baking bread, and embroidering.