Java Backend Developer Interview Questions

Senior Java Backend Engineer

Interviewed at Sporty Group

4★

Apr 12, 2024

Design a application to handle bank transactions for users

Java Backend Engineer

Interviewed at American Express

4.1★

Aug 18, 2025

features of java 8? explain some springboot annotations. difference between @Bean and @Component

Java Backend Intern

Interviewed at PayPal

3.6★

Mar 24, 2025

How to find a palindrome in an integer without converting to string

Backend Developer (Java)

Interviewed at PayPal

3.6★

Jan 8, 2025

Explain Kafka and its uses SOLID principles and implementation coding questions input - 3[abc] output - abcabcabc rain water trapping leetcode

Backend Java Developer

Interviewed at Nortal

3.9★

Jan 14, 2020

Generic questions about my past experience and projects. Simple java questions with simple answers: Map vs List vs Set, equals/hash methods, interface vs abstract class

Senior Java Backend Developer

Interviewed at Infosys

3.6★

Jan 4, 2023

Microservices Architecture

Senior Java Backend Developer

Interviewed at Infosys

3.6★

Jul 26, 2025

Explain the new features that introduced in Java 8, get array of duplicate from a list, explain service discovery in microservices , CI/CD pipeline, spring boot annotation etc

Java Cloud Backend Engineer

Interviewed at UPS

3.4★

Jun 26, 2025

JAVA basics, Springboot (Easy),Mostly situation based questions and The interviewer was friendly, helping and Asked me to write 4 programs using streams and Lambda,Write mapping using Hibernate config which i miserably failed and Yet the interviewer was approachable and Helped me write the mapping and Rejected which was a great lesson for My Learning!!

Java Backend Engineer

Interviewed at Sonar

2.9★

Aug 16, 2022

How HashMap works internally or how binary search works

Senior Java Backend Developer

Interviewed at Betsol

4★

Jun 30, 2022

Java oops , Spring boot question