Handed in my resume at career fair. Then I was invited to do the coding challenge. Which had one programming question asking to build an employee tree given employees and a CEO. After a day of submitting the coding challenge, then a phone interview was scheduled. The phone interview was pretty easy, firstly asked some of your experiences stated on the resume. Then came with 3 coding questions. 1) Check if two strings are anagrams of each other 2) Given an integer ranged from 0-99, return its English representation (e.g. 0 -> "Zero", 21 -> "Twenty One") 3) Ransom Note problem (Google it for more details) I did all of them, everything went well on the phone interview, then got invited for onsite after a day. The difficulty for the onsite interview was completely different from the phone interview. I got four rounds, all technical (one of the interviewers asked me a design problem related to web application design), sorry that I cannot disclose them in details because I signed NDA before the interviews. But playing with leetcode (especially the linked list ones and the string ones) would definitely help. Although I could finally done all the problems, but I spent too much time for some of them and needed the interviewers to give some hints. So I finally got rejected after a week, but it is still a great experience. The HR responded really quickly, the interviewers were nice and friendly too. (Although one of the interviewers on my onsite interview was not) At least it made me not fear of other technical interviews, because maybe that was the most difficult one I have ever got.