Lead Backend Developer Interview Questions

15,496 lead backend developer interview questions shared by candidates

Round 1 : 1hr After brief discussion on current work, one question was asked Code for Tic-Tac-Toe game : -> Need not to follow any OO design -> For N*N board -> Code should cover edge test cases. -> Code should run in local IDE and all test cases shared should pass .
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Backend Engineer

Interviewed at Bharti Airtel

3.8
Feb 6, 2021

Round 1 : 1hr After brief discussion on current work, one question was asked Code for Tic-Tac-Toe game : -> Need not to follow any OO design -> For N*N board -> Code should cover edge test cases. -> Code should run in local IDE and all test cases shared should pass .

Q-1)Find total number of operations to make array elements unique. Operation allowed on any element: addition/+1 Q-2)Java MCQ : Try with resource , Spring boot specific annotations , Webservices , Marker interfaces , idempotent , Option etc
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Backend Engineer

Interviewed at Bharti Airtel

3.8
Jul 28, 2022

Q-1)Find total number of operations to make array elements unique. Operation allowed on any element: addition/+1 Q-2)Java MCQ : Try with resource , Spring boot specific annotations , Webservices , Marker interfaces , idempotent , Option etc

I was given a simple question of finding the second Find Find minimum element in an array using a single for loop. After that, I was asked about concepts of javascript such as the event loop, hoisting, etc. Design a simple SMS notification service.
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Software Developer (Backend Node Js)

Interviewed at GoKwik

2.9
Dec 15, 2022

I was given a simple question of finding the second Find Find minimum element in an array using a single for loop. After that, I was asked about concepts of javascript such as the event loop, hoisting, etc. Design a simple SMS notification service.

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