The first stage is to complete a test on Hacker rank unsupervised. the next step was a technical interview on zoom, where the question was given and completed on Hacker rank. If you are successful then you will move on to the final stage of face to face interview.

Initial interview test was a coding test with three questions, I didn't have time to complete the last question and one of the other's didn't compile correctly and pass the tests, but I still passed the exam. I guess I had the correct approach and commented my code well so maybe they care about that? I would say medium difficulty. Round 2 was a video recorded math exam, I did not do well on it but I think if you studied a lot you could do well. The only question I remember from the math test required you to use a moment generating function.