Had the initial HR screening and then 9 full individual rounds of interviewing followed. There's a technical assessment which wasn't very challenging, however the presentation to a panel was something else. One member of the team specifically was being very difficult, asking questions that were off topic to what was being presented. I answered his questions anyway with real examples from my ten years of experience in the field, but apparently my answers were the reason they didn't hire me. Which I found out after 5 more rounds of interviews. Dodged a bullet big time as that person would have been my manager. Long drawn out process, salary was considerably lower than where I ended up, but they acted like this was the top tech company in the world to work for.