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Senior Backend Engineer Interview Questions

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2,034 senior backend engineer interview questions shared by candidates

- Design voting system for song singing competition like Eurovision. - If you have an incident in production and manager comes to you yelling that it should be fixed in 10 minutes, your actions? (This question actually rang my bell, is it practiced in their company?)
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Senior Backend Engineer

Interviewed at PandaDoc

3.6★
Aug 4, 2022

- Design voting system for song singing competition like Eurovision. - If you have an incident in production and manager comes to you yelling that it should be fixed in 10 minutes, your actions? (This question actually rang my bell, is it practiced in their company?)

Design Question: Your customers are short term rentals ho might have multiple rental places and working with multiple service providers such as booking, airbnb. Design a system where you will get the information of a booking from one system and block availability in other system.
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Remote Senior Backend Engineer

Interviewed at Beyond

4.1★
Feb 13, 2022

Design Question: Your customers are short term rentals ho might have multiple rental places and working with multiple service providers such as booking, airbnb. Design a system where you will get the information of a booking from one system and block availability in other system.

The online assessment is done on the CodeSignal platform. You have 1 week to take it once you receive the invitation. The test duration is 1 hour and 30 minutes (if I remember correctly). It is proctored, so you must have your camera and microphone on during the entire test. There are 4 coding questions. You must solve them one after another — you can't skip questions or go back to previous ones. All the problems are related to building a transactional tracking system and detecting potential fraud. The focus is on logic, data structures, and clean implementation.
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Senior Software Engineer - Backend

Interviewed at Charlie Health

3.5★
Apr 9, 2025

The online assessment is done on the CodeSignal platform. You have 1 week to take it once you receive the invitation. The test duration is 1 hour and 30 minutes (if I remember correctly). It is proctored, so you must have your camera and microphone on during the entire test. There are 4 coding questions. You must solve them one after another — you can't skip questions or go back to previous ones. All the problems are related to building a transactional tracking system and detecting potential fraud. The focus is on logic, data structures, and clean implementation.

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