Software engineer and visualization enthusiast. Lives in Cambridge, Massachusetts, with no dogs.

Vocateur.

Web developer and autodidact with an interest in creative coding.

Visualization toolmaker. Co-founder @observablehq. Creator @d3. Former @nytgraphics. Pronounced BOSS-tock.

Engineer at Mapbox, creator of Leaflet, algorithms geek, open source enthusiast, musician, father of twin girls, Ukrainian. 🇺🇦