Jeff is the Chief Scientist and Co-Founder at Ridge AI. He is also a Professor of Computer Science & Engineering at the University of Washington, where he co-directs the UW Interactive Data Lab and conducts research on data visualization, data science, and human-computer interaction. The visualization tools developed by Jeff and his collaborators — including Vega, Vega-Lite, D3.js, and Mosaic — are used by researchers, companies, and data enthusiasts around the world.
Formerly Jeff co-founded Trifacta, a provider of interactive tools for scalable data transformation. Trifacta was acquired by Alteryx in 2022.
Jeff holds B.S., M.S., and Ph.D. degrees in Computer Science from the University of California, Berkeley.
