Backend Software Engineer Interview Questions

9,104 backend software engineer interview questions shared by candidates

In the first interview, the common HR stuff. The exercise was proposing a refactoring to improve the design of a example codebase. This had to be defended with some of their enginneer explaining your reasons and weighting their points and proposals. The last two was common human oriented stuff again.
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Backend Developer

Interviewed at Idealista.com

4
Sep 20, 2023

In the first interview, the common HR stuff. The exercise was proposing a refactoring to improve the design of a example codebase. This had to be defended with some of their enginneer explaining your reasons and weighting their points and proposals. The last two was common human oriented stuff again.

Round 1: Write a Node.js application that provides RESTful GET, POST, PUT, and DELETE APIs to perform CRUD operations on a MongoDB database, handling requests/responses in JSON with proper status codes. Duration of interview - 30 min
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Backend Developer(Node.js)

Interviewed at SolarSquare Energy Pvt Ltd

3.7
Sep 18, 2025

Round 1: Write a Node.js application that provides RESTful GET, POST, PUT, and DELETE APIs to perform CRUD operations on a MongoDB database, handling requests/responses in JSON with proper status codes. Duration of interview - 30 min

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