Tim Chevalier is a software engineer and programming language implementor currently living in San Francisco, California. He worked at Mozilla Research for several years, where he helped implement the Rust programming language, and currently works at Heroku. In his free time, he writes for the Geek Feminism blog and wields the banhammer on the Geek Feminism Wiki. He is a graduate of Wellesley College and UC Berkeley. Photo by Christine Chun.