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74,406 lead data engineer interview questions shared by candidates

As above; it starts with a massive take home coding challenge. Basically you're given a very vague problem statement and a small amount of example data (carefully chosen to NOT cover any interesting edge cases), and must come up with an entire solution (design, implementation, API, test cases, code coverage, documentation, everything), all finished to the level you'd expect in production code (ie, full test coverage, edge cases thought about, errors handled, consistent method names, use a logging framework, everything). Don't be surprised if you fail due to something like "we told you we wanted logs, but we didn't tell you what would be consuming the logs, and you guessed wrong, so the formatting of the log messages isn't quite what we expected". Yes, it's THAT nit picky. And no, you can't ask questions during the process.
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Lead Engineer

Interviewed at Octopus Deploy

4.8★
Jul 17, 2022

As above; it starts with a massive take home coding challenge. Basically you're given a very vague problem statement and a small amount of example data (carefully chosen to NOT cover any interesting edge cases), and must come up with an entire solution (design, implementation, API, test cases, code coverage, documentation, everything), all finished to the level you'd expect in production code (ie, full test coverage, edge cases thought about, errors handled, consistent method names, use a logging framework, everything). Don't be surprised if you fail due to something like "we told you we wanted logs, but we didn't tell you what would be consuming the logs, and you guessed wrong, so the formatting of the log messages isn't quite what we expected". Yes, it's THAT nit picky. And no, you can't ask questions during the process.

Write code for following scenario : Inputs from command line : a string of numbers separated by white spaces. Output : display the difference between Max and Min number of the passed input. Constraints : Some two or three constraints were there.
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UI Lead

Interviewed at Barclays

4★
Apr 1, 2017

Write code for following scenario : Inputs from command line : a string of numbers separated by white spaces. Output : display the difference between Max and Min number of the passed input. Constraints : Some two or three constraints were there.

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