I applied online. The process took 2 months.

I applied with Monzo for a Backend Engineer role (remote).

• The 1st stage was the standard recruiter call, which was nothing much really and you don't need any prep.
• The 2nd stage was an interview about a project you have worked on and your contributions to the project. You introduce the project and be prepared to reason about some of the tech choices, but there are no exam-style tech questions.
• The 3rd stage was either a take-home assignment or a classic pair programming interview. I went for the pair programming since I couldn't afford the time investment for a take-home assignment. This interview went great, it was a very pleasant experience, and I could communicate my ideas clearly and the interviewer was happy as well.
• Final stage: Now this is where things got proper nasty. I had 2 weeks between the previous stage and this one, which was a 2-hour block with 2 interviews—one system design and one behavioral. On the day of the interview, 15 minutes before the 1st interview (System Design), it got canceled. The recruiter contacted me and said we are going ahead with the behavioral. The behavioral interview was a bit strange (one of the interviewers dropped 3 times that he worked for Google and Amazon before)—which is great, but honestly, we were not really on topic (maybe the first time he mentioned it was ok, but after that, it was out of topic), so to me, it felt a bit out of place.

Anyway, I left the interview feeling split on whether I want to work for Monzo, but still quite confident that the behavioral interview went well. In the meantime, the system design interview got rescheduled, and a day after that, it got canceled with a rejection that they are looking for more confident, leader-minded people. I was applying for L30 (mid-level). Very disappointed because of the way I was rejected—I earned the last 2 interviews (the behavioral and the system design), I prepared for 2 weeks for that system design, did mock interviews, and was never given the opportunity to sit it.

All in all, the interview process is not hard. But I actually don't think we were a good fit for each other. On the positive side, now I appreciate the low-ego environment of my current job a lot more.

The process included the following steps:

• Discuss your current project.
• Bank ledger pair programming with transactions.
• Four behavioral questions, for which the recruiter will brief you beforehand. You should definitely be confident here, as it involves a lot of "I did this" and a "Me, Me, Me" attitude.