Snap Software Engineer interview questions

The first round is online interview by Goolge hangouts and CodePair. An interviewer will ask you a technical question and you should write your code in CodePair. If you passed the first round, then they will invite you to the second round. This round will take about 5-6 hours. Don't worry, they will provide you a lunch. There will be 4-5 technical questions are waiting for you. Same as online interview. They will ask you to write the code in CodePair. Each time, there will be 1-3 team members who will ask you one technical question, sometimes they may add more conditions or ask you do it in a more general way if you solve it. Most of them are related to algorithm and basic data structures. There will be about one hour for each question. One of them is system design. Given a real scenario for Snapchat product, you are expected to design the interface for it. One of the team member will bring you to have lunch. During the lunch, he may ask you some questions, like why you would like to join Snapchat. I am not sure if this is a personality test. Basically, the team are very nice. It's a good experience. However, you may be rejected for 'not a perfect match' and they refuse to give you any reason.