After I applied for the position, I first received a coding challenge about one month later.

Then, after three weeks, HR contacted me and helped me schedule two back-to-back phone interviews, each lasting 45 minutes.

The day after the interviews, I received an email from HR asking me to schedule one additional 45-minute phone interview.

The interviewers were very patient and helpful, making me feel good about Google.

For the phone interviews:

The first round was about completing an iterator interface.

The second round was to calculate the number of trailing zeros after multiplying a group of integers.

The third round was to find if a node in a graph is guaranteed to reach the success node.