Back End Developer Interview Questions

822 back end developer interview questions shared by candidates

Technical concepts interview: Rate your skill level on a scale of 1 - 5 for the various languages you know. For what reasons are you saying you are at that skill? What are some things you like about Go? What are some things you dislike? Talk about your experience with concurrency. What is a mutex? What is a deadlock? What is the difference between a buffered and unbuffered channel in Go? What are LIFO & FIFO? What data structures do they correlate to? Explain some key concepts about object oriented programming. Explain the difference between inheritance and abstraction. List some pros & cons of abstraction. I give you a list of numbers and then I want to know if a number exists in that list. What data structure do you use? Why? How performant is it? What if the list of numbers was in the billions?
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Back End Developer

Interviewed at Airspace

3.6
May 27, 2021

Technical concepts interview: Rate your skill level on a scale of 1 - 5 for the various languages you know. For what reasons are you saying you are at that skill? What are some things you like about Go? What are some things you dislike? Talk about your experience with concurrency. What is a mutex? What is a deadlock? What is the difference between a buffered and unbuffered channel in Go? What are LIFO & FIFO? What data structures do they correlate to? Explain some key concepts about object oriented programming. Explain the difference between inheritance and abstraction. List some pros & cons of abstraction. I give you a list of numbers and then I want to know if a number exists in that list. What data structure do you use? Why? How performant is it? What if the list of numbers was in the billions?

Online test -> 1hr 30m which includes Aptitude, Coding question, Spring & Java related MCQs Java8 features, DateTime API,Lambda, Streams etc, Spring boot, Docker , MySQL, Kubernetes, Deployment and some Easy coding questions related to String in 1st technical round (Covers whatever is mentioned in resume)
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Java Back-end Developer

Interviewed at Nagarro

3.9
Jan 28, 2025

Online test -> 1hr 30m which includes Aptitude, Coding question, Spring & Java related MCQs Java8 features, DateTime API,Lambda, Streams etc, Spring boot, Docker , MySQL, Kubernetes, Deployment and some Easy coding questions related to String in 1st technical round (Covers whatever is mentioned in resume)

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