Senior Backend Engineer Interview Questions

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Write a balance transfer service between two account in a concurrent environment. Draft test/example usage (part of the spec): ``` from_account = Account(...) to_account = Account(...) service = BalanceTransferService() service.transfer(from_account, to_account, amount) # assert ... ```
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Senior Python Backend Developer

Interviewed at Revolut

4
Apr 2, 2025

Write a balance transfer service between two account in a concurrent environment. Draft test/example usage (part of the spec): ``` from_account = Account(...) to_account = Account(...) service = BalanceTransferService() service.transfer(from_account, to_account, amount) # assert ... ```

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