William Wolf is a data-visualization-focused software leader and founder with 14 years of experience building human-centered, AI-powered products. He founded Gestalt and co‑founded Bayes (YC S19), which was acquired by Airtable where he continued to lead visualization work. An active open-source contributor, he has shipped front-end and documentation improvements to the widely used Vega-Lite grammar — including cross-browser flexbox fixes, responsive docs and UI refinements. His career spans product, design and engineering roles across startups and research labs (Twitter, Oscar Health, Harvard Growth Lab, FiveThirtyEight), and he builds playful, explorable tools like Streamlit apps that prioritize empathy in data. Based in New York, he focuses on simple, reliable interfaces that leverage AI to help seniors age.
14 years of coding experience
9 years of employment as a software developer
Bachelor's degree, Industrial Engineering and Mathematics, Bachelor's degree, Industrial Engineering and Mathematics at Penn State University
The Open Source Machine Learning "Masters"
Industrial Engineering and Mathematics, Industrial Engineering and Mathematics at RMIT University
A concise grammar of interactive graphics, built on Vega.
Role in this project:
Front-end Developer
Contributions:4 reviews, 65 commits, 80 PRs in 6 years 2 months
Contributions summary:Will primarily contributed to the front-end aspects of the Vega-Lite project, focusing on improving the user interface and visual presentation. They fixed flexbox issues to ensure proper rendering in Safari and Chrome. The user also implemented features related to field definitions, including adding suffixes and implementing them within marks. Additionally, they made several improvements to the documentation's presentation and responsiveness, including adjustments for smaller screen sizes and the introduction of a sidebar for better navigation.
Contributions:79 commits, 56 pushes, 1 branch in 3 years 9 months
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