Dan Callahan is a Developer Advocate at Mozilla, where he works to ensure that the future of the Web is driven by the needs of real-world developers. Dan is passionate about emerging technologies such as Rust and WebAssembly that are transforming the Web into a more capable, resilient, and interactive medium.

Dan is an internationally recognized speaker, including delivering recent keynotes at PyCon and Linux.conf.au. Prior to joining Developer Relations, Dan led the Mozilla Persona project, an attempt at creating a new standard for decentralized authentication on the Web.