Adding Codecademy.

Contributor: Tracy Chou, software engineer at Pinterest, @triketora
Source: Codecademy team page

http://www.codecademy.com/about/team

Most of these were straightforward. I decided to include the Director
of Analytics since his background included data infrastructure and it
sounded like analytics at Codecademy might lie more on the engineering
side.
Adding Watsi.

Contributor: Tracy Chou, software engineer at Pinterest, @triketora
Source: Watsi team page

https://watsi.org/about