Applied online, then got coding invitation. The online coding challenge at first with 3 coding problem; then arranged a phone interview; a week later got an email said that would not go further for this position. The phone interview process went well, and there's no difficult questions. first I was asked some questions about my resume, after that I was asked to solve a coding problem at hackerrank website, the last step is "do you have any questions for me"

The HR person asked to schedule a brief phone interview with one of the co-founders. This lasted about 20-30 minutes and was not technical. After this interview a timed online C++ programming test was given. There were three problems. I was able to answer all three correctly, but the company decided not to proceed for unspecified reasons.