Here is a 1-paragraph summary of the text: John Britton, the latest addition to Twilio as a Developer Evangelist, has joined the company with a wealth of experience in web development, open source contributions, and working with various startups. He shares his passion for free/libre/open source software, travel, and learning new things, and is excited to bring the Twilio "special sauce" back to New York City after spending a month at the San Francisco HQ. With a background in nuclear engineering and computer science, John has been involved in various projects such as Peer 2 Peer University, P2PU Open Web, Mozilla Drumbeat, and Open Everything, and is looking forward to connecting with developers and sharing his expertise.