The interview process took around 1 week consists of 3 technical rounds and one Hiring Manager Round
1st Round:
Resume walk through and a system design question, in it you will be given a problem statement and need come up with the code level design to solve that problem. The solution needs to be easily scalable and easily understandable.
2nd Round;
This is the domain knowledge and ops excellence round, here questions will be asked in deep on the work you are doing at your current company.
3rd Round:
This is the toughest round I've faced, regarding problem solving and troubleshooting. A real time problems will be given, you need to explain the steps about how you gonna identify them and handle them. And you also expected to propose the system level changes to prevent the occurrence of those problems in future
And last round is the hiring manager round mostly behavioral questions needs to answer carefully :);)