Once your resume is accepted, there is a 30-minute general interview with a recruiter. Then, a 1-hour coding test; this one didn't focus on O-notation. After that, there are 4 rounds of 1-hour interviews. These can be scheduled all on the same day, or you can split them. They are:

• Coding interview with O-notation focus and discussion.
• Discussion of your values and soft-skill experiences with manager(s), generally those looking to hire you.
• System design interview (similar to other big-tech).
• Incident handling interview where you role-play handling a non-trivial incident and try to resolve both short-term as well as long-term issues.

Check online resources for coding interviews and system design interviews.

As well, note down some soft-skill experiences from your past, both positive and negative, framing what you learned from them.