There were two stages: rounds 1 and 2.

The first round took place on the university campus, where they get to know you and assess your skills. I applied after a coding competition held on campus. This interview involved one technical question and some questions about my history. The interviewer simply wanted me to gush about who I am and what I'm proud of.

Round 2 was a very different experience. In this round, they bring you to the Redmond campus for a set of interviews; I was flown out from Ottawa. There will be 3-5 interviews, depending on constraints.

Each interviewer asks at least one technical question, and generally, these questions cover your entire skillset. It's difficult if you're nervous, but if you go in with a good mood and no expectations, you can get through fine.

Design a function that takes in two strings representing numbers and adds them together as if they are numbers, outputting the result as a string. You cannot assume the numbers are of any containable size (i.e., the value represented could be larger than long long long long, etc.).

Reverse a linked list.

Encode/decode two strings into one string, and back to two.

Design a notification system to be used by clients to deliver content to customers.