Lead Backend Developer Interview Questions

12,392 lead backend developer interview questions shared by candidates

GD Topic : The effect of the pandemic in the global scenarios. Group Technical: sorting, searching, optimization, linked list, dbms, memory leak Final Interview : Searching in an array with optimized solution(coding) , then the code was modified gradually according to requirements, complexity questions, SQL queries, Indexing, Query Optimization etc
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Junior Software Developer(Backend)

Interviewed at Nickelfox

3.6
Feb 23, 2021

GD Topic : The effect of the pandemic in the global scenarios. Group Technical: sorting, searching, optimization, linked list, dbms, memory leak Final Interview : Searching in an array with optimized solution(coding) , then the code was modified gradually according to requirements, complexity questions, SQL queries, Indexing, Query Optimization etc

1. Given a stair of N steps, and an array k of step sizes, write an algorithm/ function to compute the number of possible ways to climb it. (30 min) 2. Given 100 Questions with their choices as an array of JSON. Design a system that queries 10 questions at a time and records their answers. And when the user requests again for question, a new set of 10 questions and choices is sent. write a server for it. (30 min) I answered both questions with a little bit of help on the second one, but didnot get an offer. Neither did I get a feedback on what went wrong and what were they expecting. HR doesnot reply mails, nor answer calls.
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Senior Backend Engineer

Interviewed at HealthifyMe

2.7
Apr 3, 2019

1. Given a stair of N steps, and an array k of step sizes, write an algorithm/ function to compute the number of possible ways to climb it. (30 min) 2. Given 100 Questions with their choices as an array of JSON. Design a system that queries 10 questions at a time and records their answers. And when the user requests again for question, a new set of 10 questions and choices is sent. write a server for it. (30 min) I answered both questions with a little bit of help on the second one, but didnot get an offer. Neither did I get a feedback on what went wrong and what were they expecting. HR doesnot reply mails, nor answer calls.

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