Applied online, quick response, did an initial phone interview. Thought the interview went well, and they assigned me coding problems in C or C++. I kicked out the code which was fully unit tested, and waited for a response. After two weeks or so I realized that I wasn't going to get one. Wasn't terribly disappointed - while the visualizations they're building are neat, their software demo is REALLY slow.

Interview process was typical as other companies. One phone screen and then on-site interview. I had 4 technical rounds and questions were of average difficulty. Even though the interview went well, I did not receive an offer. They did not provide any specific feedback as it was their company policy.