Probably the most unprofessional interview I've experienced during my career. I didn't apply; a recruiter reached out to me through LinkedIn. Despite a bad reputation on Glassdoor for reviews and interview experiences, I still gave the benefit of the doubt due to the big brand value that Revolut has. But it totally lives up to its name; I can see why people totally do not enjoy working here.

Recruiter screen - The person paid no attention at all. They barely spoke for 5 minutes, asked some basic questions, and then simply ended with, "Good luck with the process ahead." Didn't even ask my name or resume; this never happened with me before.

Coding round - Load balancer question. Fairly straightforward to implement, basic concurrency-related questions, and some TDD. Again, an extremely unfriendly interviewer, but I managed to answer just about everything and solved all of his follow-ups, only to end up with a rejection.

I wouldn't recommend interviewing here, as the place definitely doesn't seem like a good work environment, and I have plenty of folks who shared the same experience as me, both inside the company and regarding the interview process.

Implement a Load Balancer service registry. You can go through other experiences shared on Glassdoor; they are pretty much the same constraints.