Round 1 - Phone conversation with product manager. Nothing out of the box, with him trying to better understand my qualifications and interests.

Round 2 (On-site round) - Met and interviewed with 5 people. The on-site process lasted for 3.5 hours (including a 1-hour lunch with the manager I interviewed with on the phone).

Round 3 (Online HackerRank test) - A typical test if you have given a similar one before. Keep a close tab on the time though. I couldn't complete mine.

Signed NDA, but be prepared to answer questions about your projects in more detail than ever before.

Also, you can expect white-boarding for problems similar to the projects listed on your resume/CV.

Basically, they want to see how honest you are on your resume and how well it fits into their requirements.