I applied online. The process took 2 weeks. I interviewed at Revolut (Warsaw, Masovia) in Feb 2023
Interview
There were two phases of the interview. In the first one, I had two coding tasks in Java (to check TDD and general proficiency in programming). The second one focused more on concurrency in Java (writing some pseudocode to transfer money between bank accounts). I was also asked some questions about databased (ACID, transaction isolation levels, indexes, etc.)
Interview questions [1]
Question 1
Q: What transaction isolation levels do you know and could you describe it in details
Very kind. The questions weren’t easy, but with knowledge of database configurations, concurrency, locks, and some practical experience, you are able to answer them clearly, confidently, and effectively overall. It was good time.
HR interview, coding interview, then system design interview. No specific feedback from them. I really thought I went well and answered everything at least reasonably, but didn't get an offer.
Interview questions [1]
Question 1
Design Revolut Stays. Hotel info comes from an external partner. Bookings must be done through the external partner as well.
Recruiter round, they’re basically looking for buzz words. They asked for my experiences in handling different scenarios, then other db and concurrent related questions . Overall it was straightforward, just go through other’s experiences here and you should be covered
Interview questions [1]
Question 1
Concurrency
Optimistic vs pessimistic locking
Db isolation levels