Backend Developer Interview Questions

9,196 backend developer interview questions shared by candidates

The first round consists of questions regarding the database, git, REST APIs, Project discussion, and then a medium-level DSA question. The second round was fully based upon the previous projects done and the interviewer asked questions based on projects and then asked to extend a new functionality (not whole code but an overview of how, why, and what is needed). The last round was the culture fit round where general discussion on a product took place.
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Backend Developer Intern

Interviewed at smallcase

3.9
Aug 14, 2024

The first round consists of questions regarding the database, git, REST APIs, Project discussion, and then a medium-level DSA question. The second round was fully based upon the previous projects done and the interviewer asked questions based on projects and then asked to extend a new functionality (not whole code but an overview of how, why, and what is needed). The last round was the culture fit round where general discussion on a product took place.

Stage 1: Real-life example of handling responses of API calls and sending a transformed version of the response back through another API Stage 2: Typical STAR behavioural questions Stage 3: Design a certain popular system + easy leetcode question - emphasis on communication and being systematic
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Software Engineer, Backend

Interviewed at HubSpot

3.4
Mar 16, 2025

Stage 1: Real-life example of handling responses of API calls and sending a transformed version of the response back through another API Stage 2: Typical STAR behavioural questions Stage 3: Design a certain popular system + easy leetcode question - emphasis on communication and being systematic

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