I applied online , after couple of daysHR department reached me out. Phone interview was about 10 minutes they asked very typical questions like :why did you apply, tell me something more about yourself. Interview was in Polish and English, I was invited for interview with my team leader. He asked me few questions in english and the rest interview was in polish . They didn't want me to do excel assessment but I know that they usually do . I got job offer straight away but officially HR department called me next day .