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Senior Backend Engineer Interview Questions

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2,786 senior backend engineer interview questions shared by candidates

First project - describe how you were a leader in some initiative. Pays 150$. Second project - design an architecture for a service, then implement it. Pays 750$ for each part. Between the project you talk with the folks about soft skills and your submissions.
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Senior Backend Engineer

Interviewed at DuckDuckGo

4.4★
Oct 5, 2025

First project - describe how you were a leader in some initiative. Pays 150$. Second project - design an architecture for a service, then implement it. Pays 750$ for each part. Between the project you talk with the folks about soft skills and your submissions.

Without giving away too much, the technical interview asked some boilerplate Ruby questions on key core concepts and common modules. The coding assessment was creating a small endpoint for something relevant towards the industry which I appreciated.
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Senior Backend Engineer - Ruby on Rails

Interviewed at Underdog

3.8★
Jul 27, 2022

Without giving away too much, the technical interview asked some boilerplate Ruby questions on key core concepts and common modules. The coding assessment was creating a small endpoint for something relevant towards the industry which I appreciated.

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