First easy online math test, followed by a HR interview. HR manager decided to take lunch at the time when the interview was scheduled, letting me wait alone in an empty room for almost 20 minutes. Few hours after the interview I got an email saying that I could not continue to the technical interview, without giving any feedback. I asked for some clarity, but my response email was ignored. Extremely unprofessional way of working here, this application was a complete waste of my time.