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Senior Backend Engineer Interview Questions

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2,797 senior backend engineer interview questions shared by candidates

They go over all your experience regarding to the role you applied for. If you applied for a python dev role, then expect python oriented questions. A senior dev does the tech screening so expect tricky questions. Example: In Python what's the difference between using == vs is?
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Senior Backend Developer

Interviewed at Gorilla Logic

4.1★
Jun 13, 2025

They go over all your experience regarding to the role you applied for. If you applied for a python dev role, then expect python oriented questions. A senior dev does the tech screening so expect tricky questions. Example: In Python what's the difference between using == vs is?

Tell us about a project you have worked on. How do you handle Rest API Error codes (timeout in transit) Biggest thing is the code review... They give extremely outdate code but only talk about it in they way they know. (version, Injection, OOP) they do not want to talk about They want you to tell them how you improve something that is wrong at its core but "shine this turd" which can be very difficult to parse. They also do not listen to your response and will just tell you what you already told them because they are clearly checked out of the convo. Lastly, they will dedicate half the time to front end even though this is a backend Dev Position.
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Senior Backend Developer

Interviewed at Lightspeed

3.5★
Jan 31, 2024

Tell us about a project you have worked on. How do you handle Rest API Error codes (timeout in transit) Biggest thing is the code review... They give extremely outdate code but only talk about it in they way they know. (version, Injection, OOP) they do not want to talk about They want you to tell them how you improve something that is wrong at its core but "shine this turd" which can be very difficult to parse. They also do not listen to your response and will just tell you what you already told them because they are clearly checked out of the convo. Lastly, they will dedicate half the time to front end even though this is a backend Dev Position.

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