It is an extremely long interview process, longer than any other company I know about. I would say to skip it as you think it is going well, but they take a long time to find other better candidates while keeping you on hold. There is no feedback along the way as to how the previous interviews went and you just keep on getting emails to submit your availability for the next interview.
The interview went as follows:
1. Submitting an Application along with a CV.
2. Completing a written test.
3. Completing a psychometric test.
4. Completing a Technical challenge using their Vanilla Framework.
5. An hour-long interview with someone who asks about your previous experience and things you've previously worked with mostly touching front-end topics.
6. A second hour-long interview kind of the same as the first one talks about testing/integration/DevOps you've done before.
7. A third hour-long interview which is also the same but is focused on the back end. After completing this you'd have completed the first "early" stage of the interview process. Crazy, I know. You then go into the "late" stage of the process which were as below:
8. Completing a "Talent" psychometric assessment.
9. An hour-long call with a Talent Scientist who asks about your previous experience, and the old-school "What would you do if your teammate doesn't like your suggestion?" type questions. This was for another hour.
10. After this, you'd have another interview who, if you get the same as mine, was the most discourteous person ever. My interviewer yawned and looked like he just didn't want to be there.
After all this stupidly-long interview process, I got a basic rejection with no feedback whatsoever about the process as to why I was rejected. If you ask for my advice, just skip this company, you'd think that your interview is going well, but they'd still reject you and I don't think it's worth the effort and time you put into this application.