Revolut Graduate Software Engineer Python interview questions

First stage was a HackerRank with two LeetCode-medium questions (one was Longest Consecutive Sequence) and an SQL question. Then an HR call with standard behavioural questions (motivation, why Revolut, etc.). The technical interview was 1 hour. First 30 minutes: coding task — implement a set without using hash tables, trees, or the built-in set. Second 30 minutes: general software engineering questions (SOLID, decorators, generators, OOP, database transactions, concurrency/race conditions). HR mentioned beforehand that test cases were expected. Writing unit tests during the interview took a fair amount of time, so time management is important. Previous interview cycle: Earlier year I had a URL shortener task (simplified, hashmap-based) with tests, which I passed. The following round involved designing a class for handling currency transfers between bank accounts (precision matters — decimals vs integers), followed by deeper questions on databases and locking/concurrency. Overall: The questions themselves aren’t unusually hard, but the interviews are very time-pressured. You need to code quickly and explain decisions clearly. Pay is competitive for grads, but the interview pace reflects a high-intensity environment.