Backend Engineer Interview Questions

15,491 backend engineer interview questions shared by candidates

1. 2 Coding challenge questions were there one was relatively easy for 150 marks another one was for 250 marks which was medium-level leetcode. The question was maximum length substring in a multi-word string with a minimum given frequency 2. Design a function rate limiter.
avatar

Senior Backend Engineer

Interviewed at Picsart

2.9
Jun 28, 2023

1. 2 Coding challenge questions were there one was relatively easy for 150 marks another one was for 250 marks which was medium-level leetcode. The question was maximum length substring in a multi-word string with a minimum given frequency 2. Design a function rate limiter.

Evaluate a substantial codebase, detailing the purpose of each class and identifying areas requiring modification with justification. Walk through the code to understand its functionality. Mention all errors/issues you encounter. Suggest improved versions of the code. The code exhibits various errors and suboptimal practices, such as incorrect status codes, improper initialization of mutable arguments, and multiple return statements.
avatar

Senior Backend Engineer

Interviewed at Mobileye

3.8
May 7, 2024

Evaluate a substantial codebase, detailing the purpose of each class and identifying areas requiring modification with justification. Walk through the code to understand its functionality. Mention all errors/issues you encounter. Suggest improved versions of the code. The code exhibits various errors and suboptimal practices, such as incorrect status codes, improper initialization of mutable arguments, and multiple return statements.

R2 (Technical) Asked about projects, OOPs concepts then straight forward to a Leetcode Hard Question - Minimum window substring . - Given two strings s and t of lengths m and n respectively, return the minimum window substring of s such that every character in t (including duplicates) is included in the window. If there is no such substring, return the empty string "". R3 (Technical) asked about core concepts like dangling pointers, runtime polymorphism implementation, etc. R4(HR) asked normal HR ques.
avatar

Backend Engineer

Interviewed at PocketPills

4
Nov 13, 2022

R2 (Technical) Asked about projects, OOPs concepts then straight forward to a Leetcode Hard Question - Minimum window substring . - Given two strings s and t of lengths m and n respectively, return the minimum window substring of s such that every character in t (including duplicates) is included in the window. If there is no such substring, return the empty string "". R3 (Technical) asked about core concepts like dangling pointers, runtime polymorphism implementation, etc. R4(HR) asked normal HR ques.

Viewing 1561 - 1570 interview questions

See Interview Questions for Similar Jobs

Glassdoor has 15,491 interview questions and reports from Backend engineer interviews. Prepare for your interview. Get hired. Love your job.