Senior Backend Engineer Interview Questions

2,040 senior backend engineer interview questions shared by candidates

Given an array of positive decimal numbers, return the minimum number of sets of a maximum size. For example, if the maximum size was 4.0, group the positive decimals into the smallest number of sets where each set sums to less that or equal to 4.0, and return the number of sets.
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Senior Backend Engineer

Interviewed at DoorDash

3.6
Sep 25, 2023

Given an array of positive decimal numbers, return the minimum number of sets of a maximum size. For example, if the maximum size was 4.0, group the positive decimals into the smallest number of sets where each set sums to less that or equal to 4.0, and return the number of sets.

System Design round is completely waste of time. Interviewer himself was not clear about what he wants exactly. Question was more of a CRUD operation. If you will design it properly considering the use case and scale then he will ask why are you making it complex and if you will give simple design then he will say what did you design in this?
avatar

Senior Backend Engineer

Interviewed at Ottimate

3.5
Jul 30, 2024

System Design round is completely waste of time. Interviewer himself was not clear about what he wants exactly. Question was more of a CRUD operation. If you will design it properly considering the use case and scale then he will ask why are you making it complex and if you will give simple design then he will say what did you design in this?

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