It was a direct call from the recruiter based on my Linkedin profile. There was an initial skill review followed by a technical discussion with the engineering team over the phone. The interviewer dialed in 20 minutes late, however, politely apologized. Next one hour the interviewer asked me questions on various aspects of distributed systems and application development including security, computer network etc. All questions were based on various practical situations and were quite interesting. Overall I liked the interview process with the exception that I didn't receive any feedback from the company which is least that I expected. The process took 3 days.