Cal Henderson
Director of Engineering, Flickr

Website | Attendee Directory Profile

Originally from England, Cal is the VP of Engineering for Tiny Speck. Until recently he worked at Yahoo! Inc, as the Director of Engineering for Flickr, in San Francisco, California. He worked on Flickr from the day it started development (on his laptop) until April 2009 (when it was the “Official website of the Internet”).

Before Flickr, he was the technical director of Special Web Projects at Emap, a UK media company. By night he works for a whole slew of web sites and communities, including the creative community B3TA and his personal site, iamcal. In his spare time, he writes windows software, develops web publishing tools, and writes occasional articles about web application development and security.

In 2006 he wrote the best selling book Building Scalable Websites. He promises he’s working on a second edition.