I had an interview yesterday and got notified today that the application was rejected after a 1-hour four-round interview and a 30-minute Q&A session. The interview experience with them was excellent, the engineers were friendly and willing to communicate. Three out of the five interviewers were seniors who had been with the company for over five years, they all expressed a strong attachment to the company and its culture. Unfortunately, I felt inadequate. They do not share individual feedback, so the recruiter only mentioned many positive signals and encouraged me to try again in six months to a year.