Initial phone screen, followed by one day on-site interview. On-site interview consisted of 5 separate 1:1 interviews from other software engineers, plus an informal 1:1 lunch with an existing Google employee to help answer my questions. Each of the 1:1 interviews had some open-ended questions and some technical coding questions. I answered every technical question with a reasonable (i.e., not quadratic time), working solution, though that wasn't enough to get an offer this time. I can only assume there were more efficient answers than the ones I provided and/or they wanted me to get to the end result more quickly. Despite not receiving an offer, everyone I dealt with was very friendly and helpful and I believe it was a positive experience overall. They will allow me to reapply in one year.

NDA.