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Senior Backend Engineer Interview Questions

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2,039 senior backend engineer interview questions shared by candidates

Recruiter screen - Past experiences and standard questions Coding - 1 LC easy valid paranthesis + 1 problem around building a task scheduler specific to preply System design - Design a functionality in preply. It was for search, have to discuss query, params, pagination, A/B testing etc., HM round - Standard behavioral round questions how do you handle conflict, have you received negative feedback what did you do about it Culture round - Go through their principles they pretty much expect you to answer in that format.
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Senior Backend Engineer

Interviewed at Preply

3.9★
Jul 16, 2024

Recruiter screen - Past experiences and standard questions Coding - 1 LC easy valid paranthesis + 1 problem around building a task scheduler specific to preply System design - Design a functionality in preply. It was for search, have to discuss query, params, pagination, A/B testing etc., HM round - Standard behavioral round questions how do you handle conflict, have you received negative feedback what did you do about it Culture round - Go through their principles they pretty much expect you to answer in that format.

I had a very good experience. Each stage was well defined. Before each received Email with all description what to expect and also reference of material to prepare for the interview 1- Screening call with the recruiter 2- First technical round- Interviewer showed me the code snippet and asked to review the code and discuss the improvement 2- 2nd round was System design round, I was show the requirement and based on this I had to design the system , discuss the trade off
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Senior Backend Engineer

Interviewed at Welltech

2.2★
Nov 9, 2025

I had a very good experience. Each stage was well defined. Before each received Email with all description what to expect and also reference of material to prepare for the interview 1- Screening call with the recruiter 2- First technical round- Interviewer showed me the code snippet and asked to review the code and discuss the improvement 2- 2nd round was System design round, I was show the requirement and based on this I had to design the system , discuss the trade off

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