I applied online. The process took two months.

There were many tests to go through, as all the others pointed out. A batch of seven at first with interesting content, some simple calculations, and just logic tests. I advise you to really take your time for each one and do one each day; don't do them all one after the other. If you have problems with numbers, get a calculator. Then another two or three tests that required some algorithmics. Then an HR interview. The interview was long, taking one hour, and was aimed at trying to know who I was as a person. There were some tricky questions. It left me with an uncomfortable feeling. After that, you also get another logic test and a personality test. The process ended after the HR interview with vague feedback about me not being interested enough. I'd say research the company a lot and infodump what you find to show interest. Good luck.

Tell me about a time you faced adversity.