Company looks like small, innovative place where really talented engineers come together and create their own small startup. Firstly, Engineering Manager called, it was 30 minutes talk, she was so friendly, awesome! The second talk with CTO, he was great too, so nice, helpful, awesome personality. I passed first round of tech interview which was 1 hour long. The second one with the engineer in company, he asked question about hastahble, I solved, he said, great! We have 5 minutes more, we talked about company, it was like, More likely, I am going next round! I was so happy, really want to work in company, but schocked with an rejection email. No reason, I still did not get it, why they did that. Maybe, because of I am Junior Developer, but do know it at the beginning. CTO, said we are not sharing feedback. Then, why waste my time? Even cannot give a feedback. I spend my time to prepare, do my best very professionaly but I got rejection with no feedback, no reason. It was so unprofessional to even not share the reason, how I supposed to improve myself then, just waste my time. It is okay, 90 percent of Startups fails, I am not very sad but I wish I could not have applied to them, seriously they unprofessionaly waste my time. ( Their reactions, End of all rounds, great, your algorithm is correct! Awesome! We have still time! ) I dont think that it is ethic to reveal questions but briefly, they are about; Matrix Multiplication and Hashtables -