NTT DATA Java Developer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 52 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at NTT DATA.
NTT DATA
Java Developer
Mid Easy Positive experience Accept offer 3 rounds
Interview process
Recruiter call Technical screen Presentation
Interview formats
Technical Behavioral
The interview process was easy and friendly with a nice atmosphere and easy questions. There were multiple stages of interviewing with HR, technical, and a Product Owner over two months. The atmosphere was relaxed. The next interview focused on soft skills.
Confirmed questions4 questions
- Tell me about your experience with Java.
- Can you describe your knowledge of Spring?
- What is your experience with SQL?
NTT DATA
Senior Java Developer
Senior Easy Neutral experience No offer 3 rounds
Interview process
Technical screen Background check Recruiter call Phone screen Background check Technical screen
Interview formats
Technical Behavioral
Initially, I was told there would only be 2 interviews. The first was technical, covering Java, Spring Boot, unit testing, encryption, etc. The second was a management interview to assess how I handle certain situations. After passing both, the recruiter mentioned the hiring manager wanted to speak with me personally after reviewing my CV. So, I had a third interview. It seemed from the start the manager was looking for a reason to reject me. He initially said it was just to get to know me and wouldn't be technical, but gradually he started asking more technical questions. He began with my experience and project details, eventually asking about Java's garbage collection and memory management. While I understand these are important, they weren't relevant to the interview, and I didn't know the answers. He found his excuse to end the process. I asked for feedback, but none was provided.
Confirmed questions5 questions
- Tell me about annotations in Spring Boot.
- What are your thoughts on encryption algorithms?
- Can you explain your experience with unit testing?
NTT DATA
Full Stack Java Developer
Entry Average Positive experience Accept offer 2 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Technical Coding
The interview was pretty easy, with two rounds. They asked common questions about Java, Spring Boot, and microservices, with a focus on practical application. The interviewer was really calm and helped rephrase the questions when needed.
Confirmed questions4 questions
- What are your thoughts on Java and its applications?
- Can you explain your experience with Spring Boot?
- What do you know about microservices architecture?
NTT DATA Java Developer Interview Questions
Quoted word for word from NTT DATA interview reports.
“What is the difference between an Array and an ArrayList?”
Read reports →“What is the distinction between stack and heap memory in Java?”
Read reports →“Could you describe a difference between a HashTree and a HashMap?”
Read reports →“Could you explain the difference between an abstract class and an interface?”
Read reports →“Can you explain what lambda expressions are in Java 8 and give an example?”
Read report →“Can you describe the difference between an abstract class and an interface?”
Read report →“Tell me about garbage collection in Java and the algorithms used.”
Read report →“Can you explain what an abstract method is? Also, what is inheritance?”
Read report →“Can you explain when to use an Interface versus an abstract class?”
Read report →Formats, difficulty and experience
Across all 52 NTT DATA interview reports.