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HCLTech Senior Java Developer Interview Questions, Process, and Tips

Updated 1 Feb 2025

Top HCLTech Senior Java Developer Interview Questions and Answers

  • Q1. What are the features of Java 17, specifically related to sealed classes, including their syntax and necessity, along with the potential errors encountered when invoking ...read more
  • Q2. Draw low level design of implementation of notify me if item is back in stock in a ecommerce application
  • Q3. What are solid principles
View all 6 questions

HCLTech Senior Java Developer Interview Experiences

7 interviews found

Interview experience
1
Bad
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I was interviewed in Jan 2025.

Round 1 - Coding Test 

A sequence was provided: 4181, 2684, 1597, 987, 610.
first 2 are given and write code for other value calculation using java 8

The second question required writing a reverse of a palindrome using both Java 8 streams. I was able to successfully write both and clear the first round.

Round 2 - Technical 

(6 Questions)

  • Q1. Interviewer was himself not knowing anything as it was walkin drive he was sitting infront of me and checking questions on phone Introduction that he inturrepted in between when I was introducing myself
  • Q2. What are the features of Java 17, specifically related to sealed classes, including their syntax and necessity, along with the potential errors encountered when invoking a sealed class?
  • Ans. 

    Java 17 introduces sealed classes to restrict inheritance and improve code maintainability.

    • Sealed classes are declared using the 'sealed' keyword followed by the permitted subclasses.

    • Subclasses of a sealed class must be either final or sealed themselves.

    • Errors may occur when trying to extend a sealed class with a non-permitted subclass.

  • Answered by AI
  • Q3. Java 8 feathers stream api, functional interface, Intermittent operator ,Ternary operator, Prediction,Bi predicate. Answered all successfully
  • Q4. Draw low level design of implementation of notify me if item is back in stock in a ecommerce application
  • Ans. 

    Implementation of 'notify me if item is back in stock' feature in an ecommerce application

    • Create a database table to store user notifications for out-of-stock items

    • Implement a service to check item availability and send notifications to subscribed users

    • Provide a user interface for users to subscribe to notifications for specific items

  • Answered by AI
  • Q5. All design patterns which I know. Asked me to implement adapter pattern on paper
  • Q6. Then given a problem that concurrent way perform operation on excell to decrease the response time

Interview Preparation Tips

Interview preparation tips for other job seekers - I always suggest staying away from these companies commonly referred to as WITCH (Wipro, Infosys, TCS, Cognizant, HCL). You will rarely encounter good interviewers there unless there is an extreme necessity. Interview was judging me on the basis of syntex by seeing in his phone. How can everyone write each and everything on copy. For the low level design first time in my 6 years carrier someone asked to design without using kafka or any other library like spring boot to achieve that add in reminder list problem 😂. At first it was my bad after holding a offer of almost 27 lakh I somehow agreed for giving interview. Second thing I also know that after Even clearing they cannot afford 30LPA which I asked. I just went there because from last 6.5 year I have never attended any walking or face to face interview so was curious for it. Currently also working with somewhat premium product development company only. My experience was very bad. May be it can get vary person to person.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed in Sep 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Flow of micro services, annotations of boot
  • Q2. Sorting program
Round 2 - Technical 

(2 Questions)

  • Q1. Project flow,team management
  • Q2. Collection questions
Round 3 - HR 

(2 Questions)

  • Q1. Normal hr questions,about changing jobs and etc.
  • Q2. Salary negotiation

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Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
More than 8 weeks
Result
Not Selected

I applied via Walk-in and was interviewed in Mar 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Abstract class vs interface
  • Ans. 

    Abstract class is a class that can have abstract methods and concrete methods, while interface is a contract that defines methods that a class must implement.

    • Abstract class can have constructors, member variables, and non-abstract methods.

    • Interface can only have abstract methods and constants.

    • A class can implement multiple interfaces but can only extend one abstract class.

    • Example: Abstract class - Animal with abstract ...

  • Answered by AI
  • Q2. Spring vs spring boot framework
  • Ans. 

    Spring is a framework that provides comprehensive infrastructure support, while Spring Boot is a tool that simplifies Spring application development.

    • Spring is a comprehensive framework that provides various modules for different functionalities like Spring MVC, Spring Security, Spring Data, etc.

    • Spring Boot is a tool that simplifies the setup and configuration of Spring applications by providing defaults and auto-config...

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Java 8,and some more program wise questions
Round 2 - Technical 

(1 Question)

  • Q1. Already working project and skills detail

HCLTech interview questions for designations

 Java Developer

 (50)

 Junior Java Developer

 (4)

 Java Software Developer

 (3)

 Core Java Developer

 (2)

 Senior Java Consultant

 (1)

 Fullstack Java Developer

 (2)

 Senior Developer

 (15)

 Java Full Stack Developer

 (1)

Senior Java Developer Interview Questions & Answers

user image Prabakaran Kuppusamy

posted on 31 Oct 2023

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Oct 2023. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

In Virtual meeting, They request to write code for their input in java

Round 3 - Technical 

(1 Question)

  • Q1. Basics of OOPS, Advance features in java, Threads, Exceptions

Get interview-ready with Top HCLTech Interview Questions

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. What are solid principles
  • Ans. 

    SOLID principles are a set of five design principles to make software more maintainable, scalable, and flexible.

    • S - Single Responsibility Principle: A class should have only one reason to change.

    • O - Open-Closed Principle: Software entities should be open for extension but closed for modification.

    • L - Liskov Substitution Principle: Subtypes must be substitutable for their base types.

    • I - Interface Segregation Principle: A...

  • Answered by AI
  • Q2. Tell about Java 8 features
  • Ans. 

    Java 8 introduced several new features including lambda expressions, streams, and default methods.

    • Lambda expressions allow for functional programming and simplify code.

    • Streams provide a way to process collections of data in a functional way.

    • Default methods allow for adding new methods to interfaces without breaking existing implementations.

    • Other features include the Date and Time API, Nashorn JavaScript engine, and imp...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - learn all the basic Java 8 and Spring Boot Questions.

Skills evaluated in this interview

Senior Java Developer Jobs at HCLTech

View all

I applied via Naukri.com and was interviewed in Oct 2021. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Questions on OOPs concept
  • Q2. CICD pipeline questions
  • Q3. Project overview

Interview Preparation Tips

Interview preparation tips for other job seekers - Basics should be clear
Be specific

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
-

I was interviewed in Jan 2025.

Round 1 - Technical 

(8 Questions)

  • Q1. Difference between HashMap and TreeMap? Internal working of HashMap?
  • Q2. Functional Interface?
  • Q3. Singleton Class?
  • Q4. What is Eureka Server?
  • Q5. How to handle Exception in SpringBoot?
  • Q6. Find the average sal of employee in each department using java 8 Stream?
  • Q7. What is circuit Breaker?
  • Q8. What is docker and kubernates?
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Naukri.com and was interviewed in Dec 2024. There were 3 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Core Java questions and multithreading basics like executor service
  • Q2. Spring boot error handling, simple questions on distributed systems
  • Q3. Coding question. Requested to do in O(n ) time complexity as oppsed to O(n2) suggested by me.
Round 2 - Technical 

(2 Questions)

  • Q1. Given an array find all the numbers whose sum is 11 using streams only
  • Q2. Spring boot basics, hibernate queries, what is native query
Round 3 - Technical 

(2 Questions)

  • Q1. Design patterns in Java, write a singleton class
  • Q2. Spring IOC and AOP

Interview Preparation Tips

Interview preparation tips for other job seekers - The first 2 rounds were good and interviewer were also good. But there were 2 people who were taking the interview with the agenda to reject me. Didn't give me time to think on anything. Pointed error in my code which afterwards checked was perfectly fine. Haven't heard back on the feedback afte the third interview.
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. Given an array {1, 2, 1, 4, 5, 4, 8, 7}, how can you use Streams to remove duplicates while retaining only the even numbers?
  • Ans. 

    Use Streams to remove duplicates and retain only even numbers from an array.

    • Convert the array to a stream using Arrays.stream()

    • Use distinct() to remove duplicates

    • Filter out odd numbers using filter()

    • Collect the result using collect(Collectors.toList())

  • Answered by AI
  • Q2. What is the use of Static and final when you will use Static methods
  • Ans. 

    Static methods can be accessed without creating an instance of the class, while final keyword makes the method unchangeable.

    • Static methods belong to the class itself, not to any specific instance

    • Final keyword ensures that the method cannot be overridden in subclasses

    • Static methods are commonly used for utility methods that do not require access to instance variables

    • Example: Math class in Java has static methods like Ma

  • Answered by AI
  • Q3. What is the difference between @restController and @controller Annotation
  • Ans. 

    The @RestController annotation is used to define RESTful web services while @Controller annotation is used to define MVC controller.

    • RestController is a specialized version of Controller used for RESTful web services

    • RestController eliminates the need for @ResponseBody annotation

    • Controller is used for traditional MVC controller functionality

    • RestController returns data directly without needing to go through a view resolve...

  • Answered by AI
  • Q4. What is microservices why we use it
  • Ans. 

    Microservices are a software development technique where applications are composed of small, independent services that communicate with each other.

    • Microservices allow for easier scalability and maintenance of complex applications.

    • Each service in a microservices architecture can be developed, deployed, and scaled independently.

    • Microservices promote flexibility and agility in software development.

    • Examples of companies us...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Cognizant Senior Java Developer interview:
  • Java SpringBoot
Interview preparation tips for other job seekers - Need to have strong knowledge on basics Java Spring boot and Microservices

HCLTech Interview FAQs

How many rounds are there in HCLTech Senior Java Developer interview?
HCLTech interview process usually has 2-3 rounds. The most common rounds in the HCLTech interview process are Technical, Resume Shortlist and Coding Test.
How to prepare for HCLTech Senior Java Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at HCLTech. The most common topics and skills that interviewers at HCLTech expect are Java, Spring, Hibernate, Microservices and Core Java.
What are the top questions asked in HCLTech Senior Java Developer interview?

Some of the top questions asked at the HCLTech Senior Java Developer interview -

  1. What are the features of Java 17, specifically related to sealed classes, inclu...read more
  2. Draw low level design of implementation of notify me if item is back in stock i...read more
  3. What are solid princip...read more

Tell us how to improve this page.

HCLTech Senior Java Developer Interview Process

based on 6 interviews

2 Interview rounds

  • Technical Round - 1
  • Technical Round - 2
View more
Join HCLTech Find your spark and discover what drives you forward
HCLTech Senior Java Developer Salary
based on 119 salaries
₹6.6 L/yr - ₹28.1 L/yr
6% more than the average Senior Java Developer Salary in India
View more details

HCLTech Senior Java Developer Reviews and Ratings

based on 11 reviews

3.9/5

Rating in categories

2.9

Skill development

3.4

Work-life balance

2.9

Salary

3.1

Job security

3.1

Company culture

2.3

Promotions

3.2

Work satisfaction

Explore 11 Reviews and Ratings
Senior Java Developer

Pune,

Chennai

+1

5-8 Yrs

₹ 7-26 LPA

One Test Product _Sr. Java Developer (Data Structures & Algorithms)

Hyderabad / Secunderabad,

Chennai

+1

7-10 Yrs

₹ 16-22.5 LPA

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