A friend referred me and submitted my resume to the recruiter. The next day I had an email from the recruiter asking me to do a coding test. I completed the coding test, which had 5 questions and a limit of an hour to complete. You weren't expected to complete all 5 but at least 2 of them, I think. The next day I received a phone call asking me to proceed to the next stage, which was a 20 minute phone call discussing projects and experience - a personality check. During that call the interviewer started organising the next stage, which were a set of 3 skype calls. One was talking in depth about one particular project. Another was kind of like technical knowledge trivia, but they would drill pretty deeply down on most concepts. The last was another coding test where they supplied files and a spec and you had to "pair program" a solution to it, which had to pass tests for both efficiency and correctness. The same day as my skype call the recruiter contacted me with a verbal offer. Incredibly fast process.

First a online algorithm test, pick two out of five, not really hard. Then they will reach you for a telephone interview. You can choose a date from what they provided. The telephone interview is not related to technical problem, mostly like an HR interview. I got a reject email after telephone interview which claimed that they have found more suitable guys.