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Backend Software Engineer Interview Questions

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9,094 backend software engineer interview questions shared by candidates

Oh, backend interviews can throw all kinds of questions your way—but one really common and important question that almost always pops up is: "How would you design a scalable REST API?" They’ll usually follow up with questions like: How do you handle versioning? How do you secure the API? What status codes do you return? How do you handle errors? What happens when traffic spikes?
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Backend Developer

Interviewed at Softsuave

3.5★
Apr 25, 2025

Oh, backend interviews can throw all kinds of questions your way—but one really common and important question that almost always pops up is: "How would you design a scalable REST API?" They’ll usually follow up with questions like: How do you handle versioning? How do you secure the API? What status codes do you return? How do you handle errors? What happens when traffic spikes?

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