Khan Academy - Mountain View, CA - full-time and intern, designers and devs
We're a non-profit whose mission is to provide a world-class education to anyone, anywhere. We're scaling quickly.
Our students answer over 2 million math problems per day (over 800mm total so far), all generated by our open source exercise generation framework (https://github.com/Khan/khan-exercises), and our videos (now from a variety of authors including Sal) have been viewed over 200mm times. We're tracking all that data and using it to customize each student's experience as well as building brand-new tools like our new programming environment (http://ejohn.org/blog/introducing-khan-cs/). We could use your help.
Working for Khan Academy is one of the highest educational impact positions you can imagine, and we've been called by Wired one of the best places to work in Silicon Valley: http://news.ycombinator.com/item?id=4157078.
We're hiring designers and all types of devs -- mobile, frontend, backend, whatever you want to call yourself. Big plans ahead.