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Senior Backend Engineer Interview Questions

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Given a matrix of empty space (O), Enemy (E) and Wall (W), find the position where you can drop the bomb (you can only drop at O), such that the impact of bomb goes in horizontal and vertical direction only and cannot surpass the wall
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Senior Software Engineer - Backend

Interviewed at Licious

3.5★
Aug 25, 2021

Given a matrix of empty space (O), Enemy (E) and Wall (W), find the position where you can drop the bomb (you can only drop at O), such that the impact of bomb goes in horizontal and vertical direction only and cannot surpass the wall

The main "question" was a techincal interview, where I had to setup some start to end mini project, the time frame is a round 1hr and one is asked to prepare the environment in advance. I have seen one review here on Glassdoor which points out bad guidance through the interview process. I would argue with this, it is an interview where a persons skills are being tested. While the interviewer is supposed to guide, the interviewee is the one who should lead through the problem and communicate clearly if guidance is missing. I faced some struggles throughout the process but I communicated them clearly and got guidance through those issues.
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Senior Backend Engineer

Interviewed at Peter Park System

4.4★
Dec 9, 2025

The main "question" was a techincal interview, where I had to setup some start to end mini project, the time frame is a round 1hr and one is asked to prepare the environment in advance. I have seen one review here on Glassdoor which points out bad guidance through the interview process. I would argue with this, it is an interview where a persons skills are being tested. While the interviewer is supposed to guide, the interviewee is the one who should lead through the problem and communicate clearly if guidance is missing. I faced some struggles throughout the process but I communicated them clearly and got guidance through those issues.

Behavioural questions on my last working experience (stack holder interaction, project ownership, planning and delivery). Several questions on code challenge solution that I provided, focusing on RDBMS (isolation level, concurrency, locks).Interviewers were (in my case) experienced Qonters (>4 years tenure).
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Senior Backend Engineer

Interviewed at Qonto

4.3★
May 5, 2025

Behavioural questions on my last working experience (stack holder interaction, project ownership, planning and delivery). Several questions on code challenge solution that I provided, focusing on RDBMS (isolation level, concurrency, locks).Interviewers were (in my case) experienced Qonters (>4 years tenure).

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