Totally 2 stages. In the first stage is two phone interview which covered basic data structure question and your resume. If you pass the first stage, then is one phone interview and one hangout interview which almost same as before.

Contacted by the recruiter. She set up a call with 2 back-to-back google hangout call with the engineers. I thought I did horribly as I wasn't able to write up the code in the given time; I was only able to identify that its a BFS problem and what data structure will be most efficient. Somehow I made it to the next round and had another google hangout call with a different engineer. This time I was able to solve the problem and improve it. I got rejected after few days. The whole process until I got rejected took a month.