I applied the position in college career fair. Got reply in a week. The first round interview is online assignment. It requires to be finished within 2 hour. You need to ssh to the company's server, and follow the steps in the cpp file. Everything is cpp coding question. I was stuck at the first problem, can't pass the auto test, I don't way. However, I finished all the problems within two hour. I need to frequently scp my file to the server to compile, because the testing .o file is on the server and it has built in libraries, so that I can't test locally. I would highly recommend using graphic ssh software, that may be helpful during the test.