Backend Engineer Interview Questions

14,386 backend engineer interview questions shared by candidates

The technical question was to view a merge request for a new change to an existing ruby on rails application. The merge request contained some deliberate errors, so your task is to comment on the merge request and provide feedback as you would in your normal daily routine, such as giving possible ways to solve the issues. The next step was to implement your suggested fixes and commit them back to the repository, making sure all tests pass. The other interviews with the Engineering Manager and Director of Engineering were based on the STAR method (Situation, Task, Action, and Result), including some behavioural questions. Nothing surprising here, just make sure you have a few good STAR based answers that highlight your abilities.
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Backend Engineer

Interviewed at GitLab

3.4
Jul 17, 2019

The technical question was to view a merge request for a new change to an existing ruby on rails application. The merge request contained some deliberate errors, so your task is to comment on the merge request and provide feedback as you would in your normal daily routine, such as giving possible ways to solve the issues. The next step was to implement your suggested fixes and commit them back to the repository, making sure all tests pass. The other interviews with the Engineering Manager and Director of Engineering were based on the STAR method (Situation, Task, Action, and Result), including some behavioural questions. Nothing surprising here, just make sure you have a few good STAR based answers that highlight your abilities.

The technical assessment was a small Node.js webapp where you had to download it via git and complete the parts marked with TODO in order to make the tests pass. The second item was a Postgresql question about writing a query in order to search for the top 3 companies in order to revenues but if companies shared the same revenues and more than 3 are found they should still be listed. They give you 2 hrs to finish the test
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Backend Node Js Developer

Interviewed at Lumenalta

3.7
Jan 23, 2019

The technical assessment was a small Node.js webapp where you had to download it via git and complete the parts marked with TODO in order to make the tests pass. The second item was a Postgresql question about writing a query in order to search for the top 3 companies in order to revenues but if companies shared the same revenues and more than 3 are found they should still be listed. They give you 2 hrs to finish the test

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