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Backend Engineer Interview Questions
14,344 backend engineer interview questions shared by candidates
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Given an code example, write an unit test and sort a text alfabetically.
Explain how you would handle a large amount of data, given you have a limited amount of memory.
How would you prevent cascade failure between micro-service, i.e. how can circuit breaker be implemented ?
If you were designing a multi-threaded program to crunch numbers and do highly cpu intensive processing would you expect a single threaded program to do better or one using 50 threads and why?
Would you like to waste 4 hours of your life developing a solution to a half baked, poorly thought out, years old challenge, and get no feedback or response?
The most complex thing I had to develop was a Docker-based project, where I would simulate drones and report all that to a message broker (RabbitMQ in this case) and then display the location, speed, ID and highlight the moving drones that had not been moving for more than 10 seconds in a single-page dashboard.
What would cause you to leave the company in under 3 months? A bunch of other easy technical questions.
Implement a simple version of Brex’s backend (check if card has enough remaining balance to accept incoming transaction) using database. After that, think about fraud detection, if all you have is the information about the transaction.
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