Josh Goldberg is a frontend developer with a passion for open source, static analysis, and the web. He is a the author of O’Reilly’s Learning TypeScript and a full time open source maintainer who contributes regularly to TypeScript and open source projects in its ecosystem, such as typescript-eslint and TypeStat. His past work includes spearheading Codecademy’s usage of TypeScript and helping create its Learn TypeScript course, and architecting rich client applications at Microsoft. His projects range from static analysis to meta-languages to re-creating retro games in the browser. Also cats.