A programming test was sent to me. The test is about writing a memory pool manager. The test has no mandatory time limit and I spent one day to finish it. After submitting it, I got to the next round which is a phone interview. In the interview I was asked a mathematical problem about linear algebra: Giving the positions of a plane and a point, how do you judge if the point is above of below the plane. I was not allowed to go on the internet for any reference. I didn't answer very well since I am an international student and was not familiar with English words about maths. Next day I received an email about declination.

I applied in October, but didn't hear anything back until January. However, once I heard back from the recruiter, the process was very quick. I had a take-home programming test (untimed), and once I submitted that, multiple panel interviews. I received an offer the week after my final interview.