I applied online. The process took 1 week. I interviewed at Snap in Dec 2017
Interview
This was plain retarded and a complete waste of time. I still can not understand why the interviewer would reject me. The question was incredibly straightforward. I was very clear with my answers. I had one hiccup when my indices were off by 1. But in the end, the interviewer said that the algorithm is perfect. It was as optimal as it can get. I ran it on a couple of test cases. They never judged me based on my personality, so I don't understand what else they were looking at. It was two college graduates who were more confused than I was. I think Snap really needs to reevaluate it's hiring process. I was looking forward to my next stage.
One initial screening call. Then 1 coding screen. Then an on-site with 3 coding rounds and 1 system design round. All the rounds were pretty straightforward DSA patterns and SD was also a common question you read about in SD interview prep books.
For the technical rounds, I was asked leetcode style questions. Need to practice Data structures and algorithms in order to do well on the interviews. It's important to explain the code as you go along and clarfiy any questions with the interviewer.
Hard but interesting. Had to go through 1 HM round, 2 coding rounds and 2 systems design rounds. Coding round was hit counter, and message recommendation system. The System design rounds were a bit challenging.
Interview questions [1]
Question 1
Design a recommendation system for messaging to predict the next word while typing