Backend Engineer Interview Questions

14,357 backend engineer interview questions shared by candidates

They asked me one question on DSA, which was to delete the nth node from end and return the head of the linked list. After that i got questions on Core Java & SpringBoot: 1) List few spring boot annotations 2) Explain copy constructor and it's types.

Java Backend Engineer

Interviewed at Twinleaves Retail Ecommerce India

2.6
Oct 24, 2024

They asked me one question on DSA, which was to delete the nth node from end and return the head of the linked list. After that i got questions on Core Java & SpringBoot: 1) List few spring boot annotations 2) Explain copy constructor and it's types.

Given a CSV file containing ID and additional data columns, create a data structure allowing querying the file by ID and header name. then, load the CSV file. CSV content will be given as an array of strings, each string representing one line. table is presented in input as follows : [“ID,Brand,Model,Year”, ”A,Toyota,Corolla,2022”, ”B,Toyota,Yaris,2000” ,”C,Mazda,3,2013”, ”D,Mazda,6,2017”] Create get(String id, String header) which should operate with O(1) complexity Create parse(String[] lines) function which receives the file content as input to the data structure Feel free to use any generally known programming language
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Backend Developer

Interviewed at Next Insurance

3.1
Feb 8, 2023

Given a CSV file containing ID and additional data columns, create a data structure allowing querying the file by ID and header name. then, load the CSV file. CSV content will be given as an array of strings, each string representing one line. table is presented in input as follows : [“ID,Brand,Model,Year”, ”A,Toyota,Corolla,2022”, ”B,Toyota,Yaris,2000” ,”C,Mazda,3,2013”, ”D,Mazda,6,2017”] Create get(String id, String header) which should operate with O(1) complexity Create parse(String[] lines) function which receives the file content as input to the data structure Feel free to use any generally known programming language

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