Revolut Software Developer interview questions

I was approached on LinkedIn by a tech recruiter and then I did the first step consisting on 30 minutes of a video call with another recruiter. It was an informal conversation but she also asked me also some tech questions like if use Spring and other related to data structure like java hashmap. I was rejected, hopefully is not because I said I've been using Spring for al lot of project and works, as the said they prefer implement everything by themself which in my opinion has more cons than prons.

I recently interviewed a candidate for a Software Engineer position, and it was a highly positive experience. Questions were hard and explained in lot of details. I really liked the attitude of interviewers.