Lead Backend Developer Interview Questions

12,381 lead backend developer interview questions shared by candidates

A coding challenge question was nice. I received a SpringBoot application with maven project. It also had integration tests. The question was to create 3 Rest endpoints with straight forward logic. The challenging part is not to implement the requirements but to implement it in a codility environment. Codility is the worst platform to implement a modular application, it works for small algorithmic problems. Despite I was able to run full problem in my IDE (Which they also recommend), I was not able to detect why it failed to compile and run on the codility. It is difficult to implement, copy to codility and make it run on codility within 2 hrs.
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Senior Backend Engineer

Interviewed at Scalable Capital

3.7
Apr 28, 2025

A coding challenge question was nice. I received a SpringBoot application with maven project. It also had integration tests. The question was to create 3 Rest endpoints with straight forward logic. The challenging part is not to implement the requirements but to implement it in a codility environment. Codility is the worst platform to implement a modular application, it works for small algorithmic problems. Despite I was able to run full problem in my IDE (Which they also recommend), I was not able to detect why it failed to compile and run on the codility. It is difficult to implement, copy to codility and make it run on codility within 2 hrs.

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