Began with a 22-minute timed mental math test and coding challenge - the math challenge was quite difficult and so was the coding challenge, but I didn't finish either one completely and still moved to the next round. The second round was a math-based phone interview (probability question) and even though I answered it reasonably well, I was rejected.

I got rejected at the personality assessment stage (185 online multiple choice questions), which was the second stage of the recruitment process. Prior to that was an online mental arithmetic/sequences test.