First round is a HR phone interview which takes ~30 minutes. If you pass the first round you will be asked to do a online coding test which takes around an hour. If you pass the test, you will do a technical phone interview with one of their engineers(30~45min). Questions were hard and mostly on C++. They want a C++ expert. Didn't get an offer.

Online test, basically make a data structure that where you can add and get elements based on timestamp. Super easy, they give you three hours but I did it in 30 mins. They want performance over memory efficiency. Next was on-site test, they give you three hours. Another DS question involving priority queues. Three priority queues, upgrade when a TS retires to a higher priority queue. They want it thread safe. They give you 3 hours but I finished it in 30 mins but spent the next 1 hour rechecking. I even gave full comments and explanations. Then an in person interview, where I thought the conversation went well. I was asked what I would fix from the online interview question and I told him I would use a lower_bound with a lambda function (instead of my own binary search, so it's cleaner and safer) but I don't think understood what I said. I got a call two days later and they told me I wasn't good enough technically. I asked which part, and she couldn't say, and told me to keep in touch. Nah... no way. I really think I overqualified and maybe should've dumbed down my answers and salary expectations. It was one of those two that definitely cut me off.