Java Backend Engineer Interview Questions

Backend Java Developer

Interviewed at Atlassian

3.1★

Jun 29, 2020

Design a rate limiter

Graduate Backend Developer - Java

Interviewed at ByteDance

3.4★

May 27, 2021

Talks about projects that you have done and a lot of your understanding of java implementations.

Java Backend Engineer

Interviewed at Zoom Communications

3.6★

Jul 29, 2022

What are some differences between Java 8 and 11. Difference between final, finally, and finalize. How do you make a singleton class.

Java Backend Developer/Engineer

Interviewed at Bounteous x Accolite

3.4★

Oct 11, 2024

Q. Stair case problem Q. Sorted rotated array find maximum number. Q. Find max length of string from array of string using lambda. Q. Create list of common skills employee using key as skill using lambda

Java Backend Developer/Engineer

Interviewed at Bounteous x Accolite

3.4★

Mar 7, 2025

How many threads are allowed in a thread pool?

Backend Engineer (Java)

Interviewed at Binance

4★

Apr 25, 2025

What's the most challenging task in my past experience and how did I resolve this.

Senior Java Backend Developer

Interviewed at Tyfone

3.7★

Sep 8, 2022

Normal Java Questions were asked. If you have prepared well, then you can answer.

Java Backend Engineer

Interviewed at Valtech

3.4★

Jun 10, 2024

Have I heard about DDoS and how I would protect my self from those kind of attacks.

Java Backend Developer

Interviewed at Accenture

3.7★

Jul 3, 2024

Java 8 question - what are the usages of java 8 new additions

Java Backend Developer ()

Interviewed at Symphony Talent

3.2★

Jul 18, 2021

Q: Overloading vs overriding? Q: Array vs ArrayList? Q: Hashset vs Hashmap? Q: Final, finalize, finally? Q: try-catch-finally? Q: Comparable vs comparator? Q: @PathParam vs @QueryParam? Q: How to pass header into method parameter of a GET endpoing? Q: API flow of custom exception handling? Q: How to write a GET endpoint? Q: What happens if user uses POST request for a GET endpoint?