Phone interview mostly about my background and less hypotheticals, followed by 1/2-day onsite interview. The onsite consisted of three 45-minute interviews and lunch. The interviews were entirely hypotethical questions, nothing about my background or prior experience. Each interview consisted of 2-3 hypotheticals, sometimes building upon each other. The lunch was more casual and was an opportunity to interview the Google employee and not be interviewed myself - this helpful in providing insight into life at Google.