I had a first HR interview, followed by a "phone" interview. This wasn't truly a phone interview; it involved one or two recruiters assessing my coding skills. For preparation, I participated in two mock interviews with Google employees who asked relatively easy questions.
The actual interview problem was quite difficult (medium-hard LeetCode). I completed the problem but didn't have time to debug my code, and consequently, I didn't pass.
The following metrics were computed from 1 interview experience for the Google Senior Compiler Engineer role in London, England.
Google's interview process for their Senior Compiler Engineer roles in London, England is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Google's Senior Compiler Engineer interview process in London, England.