Senior Backend Engineer Interview Questions

2,040 senior backend engineer interview questions shared by candidates

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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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?

Coding assignment: In a university, your attendance determines whether you will be allowed to attend your graduation ceremony. You are not allowed to miss classes for four or more consecutive days. Your graduation ceremony is on the last day of the academic year, which is the Nth day. Your task is to determine the following: 1. The number of ways to attend classes over N days. 2. The probability that you will miss your graduation ceremony. Represent the solution in the string format as "Answer of (2) / Answer of (1)", don't actually divide or reduce the fraction to decimal Test cases: for 5 days: 14/29 for 10 days: 372/773
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Backend Engineer/Senior Backend Engineer

Interviewed at Impact Analytics

3.8
Apr 13, 2023

Coding assignment: In a university, your attendance determines whether you will be allowed to attend your graduation ceremony. You are not allowed to miss classes for four or more consecutive days. Your graduation ceremony is on the last day of the academic year, which is the Nth day. Your task is to determine the following: 1. The number of ways to attend classes over N days. 2. The probability that you will miss your graduation ceremony. Represent the solution in the string format as "Answer of (2) / Answer of (1)", don't actually divide or reduce the fraction to decimal Test cases: for 5 days: 14/29 for 10 days: 372/773

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