Java Backend Engineer Interview Questions

Senior Java Backend Developer

Interviewed at Bayes Esports Solutions

3.8★

May 7, 2020

Task: implement log processing application

Java Backend Engineer

Interviewed at Freenow by Lyft

3.6★

Oct 26, 2019

Search functionality across multiple columns

Backend Java Developer

Interviewed at Photon

4.3★

Jul 6, 2023

core java, java 8, spring security

Senior Java Backend Developer

Interviewed at Diabolocom

4.1★

Sep 4, 2024

Given an array of numbers, combine them in all possible pairs. Count the pairs that respect the conditions: max(|x-y|,|x+y|)>=max.(|x|,|y|) min(|x-y|,|x+y|)<=min.(|x|,|y|)

Senior Java Developer, Backend

Interviewed at EverTrue

4.1★

Apr 25, 2018

Data Structures question, and what is the order N2 or NLogN?

Java Backend Engineer

Interviewed at ZeMoSo

3.9★

Jan 31, 2023

Basic java programs like reverse linked list, design linked list, multi level grouping and sorting in j8

Java Backend Engineer

Interviewed at Calsoft

4.3★

Aug 26, 2017

In first round only basic concepts of Java and OOPS, in java collection, multithreading, exception handling, concepts on string etc. Second round was also good they asked some programs. Like finding prime numbers, reversing a string.

Senior Software Engineer- Java( Backend)

Interviewed at Dew Solutions

3.9★

May 8, 2017

Java, OOPS( Server Side), Node JS, Data Structures and Algorithm.

Senior Java Backend Developer

Interviewed at N26

3.4★

Nov 2, 2018

Code an API for tracking statistics Code a function that, given a string, finds the first non-repeated letter in the string What are the advantages and disadvantages of using microservices

Java Backend Engineer

Interviewed at OSTTRA

3.3★

Apr 2, 2024

Serialize and deserialize a tree