I applied online, and the process took one week.

I received an email to arrange a short phone interview a couple of days after submitting my online application. The phone call took place a few days later, and a rejection email was received a day after that. It was all a very quick process. The person recruiting was fast to arrange everything, and I felt I was dealt with fairly. However, it was disappointing that the emails led me to believe the call would be quite relaxed and informal, as I was told I didn't need to prepare much, and it ended up being almost entirely technical. I didn't feel I could have expected or prepared for the questions that were asked, because they weren't very specific to the role. I also feel that my application made my level of experience clear, and yet they still interviewed and rejected me due to a lack of experience. The next stage would have been an at-home coding test, and I'm surprised a company like Monzo didn't give me the chance to prove my abilities in this way.

How would you avoid conflicts in a concurrent (multi-threaded) system?