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HCLTech Software Engineer Interview Questions and Answers

Updated 27 Jul 2025

199 Interview questions

A Software Engineer was asked 1w ago
Q. What are some basic programming questions you can answer?
Ans. 

This question tests basic programming skills through simple coding tasks.

  • Understand the problem statement clearly.

  • Break down the problem into smaller parts.

  • Write pseudocode before actual coding.

  • Test your code with different inputs.

🔥 Asked by recruiter 2 times
A Software Engineer was asked 1mo ago
Q. What is functional testing?
Ans. 

Functional testing verifies that software functions according to specified requirements and performs its intended tasks.

  • Focuses on user requirements and functionality of the application.

  • Examples include testing login/logout features, data entry forms, and payment processing.

  • Can be performed manually or through automated testing tools.

  • Ensures that the software behaves as expected under various conditions.

  • Common tec...

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A Software Engineer was asked 1mo ago
Q. What is the difference between Black Box and White Box Testing?
Ans. 

Black box testing focuses on input-output without internal knowledge, while white box testing examines internal code structure.

  • Black box testing evaluates functionality without knowing the internal workings (e.g., testing a web application by checking user inputs).

  • White box testing requires knowledge of the code and internal logic (e.g., unit testing specific functions in a codebase).

  • Black box testing is often use...

A Software Engineer was asked 1mo ago
Q. What are the differences between manual and automated testing?
Ans. 

Manual testing involves human testers executing test cases, while automation testing uses tools to execute tests automatically.

  • Manual testing is time-consuming and requires human intervention, e.g., exploratory testing.

  • Automation testing is faster and more efficient for repetitive tasks, e.g., regression testing.

  • Manual testing is better for usability testing, where human judgment is crucial.

  • Automation testing is i...

What people are saying about HCLTech

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a software engineer
1d
Stuck in a coding nightmare – time to jump ship?
I'm a Full Stack Dev on a finance client project. Our SOW doesn't cover functional testing, but the client wants us to rewrite unit tests as integration tests. Management's silent, so we're stuck doing tons of rework, stretching work hours from 8 AM to 11 PM since day one. They're pushing RTO, no cabs 'cause it's a 'general shift,' and the manager ghosts calls, texts, and emails. Job security's gone too. I know I should switch, but I left my last job in 6 months, so I'm hesitant to leave this one at 8 months. Should I make the jump? My previous stints averaged 2 years.
Got a question about HCLTech?
Ask anonymously on communities.
A Software Engineer was asked 2mo ago
Q. What are the differences between threads and processes?
Ans. 

Threads are lightweight processes that share the same memory space, while processes are independent with their own memory allocation.

  • Memory Usage: Threads share the same memory space, making them more efficient in terms of memory usage compared to processes, which have separate memory.

  • Communication: Threads can communicate with each other more easily since they share the same memory, while processes require inter-...

What are the roles & responsibilities of a Software Engineer at HCLTech?

Software Development

  • Design, develop, test, and deploy software applications
  • Build and consume RESTful APIs
  • Integrate with hardware and software systems

Read full roles & responsibilities

A Software Engineer was asked 2mo ago
Q. Can you explain the difference between a stack and a queue?
Ans. 

A stack is a LIFO data structure, while a queue is a FIFO structure, each serving different use cases in programming.

  • LIFO vs FIFO: Stack follows Last In First Out (LIFO) principle, while Queue follows First In First Out (FIFO).

  • Stack Example: Think of a stack of plates; you add and remove plates from the top.

  • Queue Example: A queue is like a line at a ticket counter; the first person in line is the first to be serve...

HCLTech HR Interview Questions

515 questions and answers

Q. Are you comfortable working in a team or independently?
Q. Tell me about yourself and your educational background.
Q. Why do you want to work in HR, and what skills do you bring to this role?
A Software Engineer was asked 3mo ago
Q. Where do you see yourself in five years?
Ans. 

In five years, I envision myself as a Senior Software Engineer, leading projects and mentoring junior developers.

  • I aim to deepen my expertise in software architecture and design patterns, similar to how I learned from senior colleagues.

  • I plan to take on leadership roles in projects, guiding teams through complex challenges, much like a project I led last year.

  • I aspire to contribute to open-source projects, enhanci...

Are these interview questions helpful?
A Software Engineer was asked 3mo ago
Q. Write code to determine if a number is prime.
Ans. 

A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.

  • Definition: A prime number is only divisible by 1 and itself. For example, 2, 3, 5, and 7 are prime numbers.

  • First Prime: The smallest prime number is 2, which is also the only even prime number.

  • Non-Prime Examples: Numbers like 4, 6, 8, and 9 are not prime because they have divisors other than 1 and th...

A Software Engineer was asked 3mo ago
Q. Write code to check if a string is a palindrome.
Ans. 

A palindrome is a word, phrase, or sequence that reads the same backward as forward. This code checks for palindromes.

  • A simple palindrome check can be done using string reversal.

  • Example: 'racecar' is a palindrome, while 'hello' is not.

  • In Python, you can use slicing: s == s[::-1].

  • Consider ignoring spaces and punctuation for phrases.

A Software Engineer was asked 4mo ago
Q. How do you copy files from blob storage from a source container to a target container in CSV format?
Ans. 

Copying files from blob storage to a target container in CSV format involves data extraction, transformation, and loading processes.

  • Data Extraction: Use Azure SDK or REST API to access and download files from the source blob storage.

  • Data Transformation: Convert the data into CSV format, ensuring proper formatting and handling of special characters.

  • Data Loading: Upload the transformed CSV files to the target contai...

HCLTech Software Engineer Interview Experiences

325 interviews found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected
Round 1 - Technical 

(2 Questions)

  • Q1. Technical questions regarding Salesforce
  • Q2. Technical questions regarding Salesforce
Round 2 - HR 

(2 Questions)

  • Q1. Salary discussion
  • Q2. Salary discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - No hike in HCL in all fiscal year
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. 1) OOPS in java, and told to explain abstraction, encapsulation, inheritance with practical code 2) Exception handling(globally), Authentication and authorization 3) SOLID principles and factory design pat...
  • Ans. 

    Interview questions for Software Engineer position covering OOPS concepts, exception handling, SOLID principles, Java 8 features, and Streams.

    • Abstraction in OOPS: Hiding implementation details. Example: Abstract class Shape with method draw().

    • Encapsulation in OOPS: Bundling data and methods that operate on the data. Example: Class Employee with private fields and public getters/setters.

    • Inheritance in OOPS: Reusing code...

  • Answered by AI
  • Q2. 1) Advantage of springboot over spring 2) Tell me all the anotations you know in spring 3) What are CRUD operations, write controller layer and use validating annotations like @NotNull, @valid etc. how to ...
  • Ans. 

    The interview questions cover various topics related to Spring framework, REST vs SOAP, JPA repository, Feign client, circuit breaker, and Spring Security.

    • Spring Boot provides a simpler and faster way to set up and run Spring applications compared to traditional Spring.

    • Common annotations in Spring include @Controller, @Service, @Repository, @Autowired, @Component, @RequestMapping, @GetMapping, @PostMapping, @PutMapping...

  • Answered by AI
  • Q3. 1) ACID properties 2) DBMS commands 3) inner queries 4) Joins 5) S3 bucket congif and how to handle file and upload and retrieve in s3 6) Ci/Cd basic flow and docker explaination

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare resume well and keep applying to jobs

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Java Question spring boot question
  • Q2. Spring Aop, rest api
  • Q3. Spring security
Round 2 - HR 

(1 Question)

  • Q1. Salary discussion,why tou want to join
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(3 Questions)

  • Q1. What is java and explain java features
  • Ans. 

    Java is a popular programming language known for its platform independence and object-oriented features.

    • Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

    • Java is object-oriented, allowing for modular and reusable code

    • Java is known for its robust standard library, providing a wide range of pre-built functionality

    • Java supports multithreading, allowing for concurrent execution...

  • Answered by AI
  • Q2. What is multithreading
  • Ans. 

    Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for better performance and responsiveness in software applications.

    • Multithreading allows multiple threads to run concurrently within the same process.

    • Each thread has its own stack and program counter, but shares the same memory space.

    • Multithreading is commonly used in applications that require handling multiple tasks simultaneousl...

  • Answered by AI
  • Q3. What is collection in java
  • Ans. 

    A collection in Java is a framework that provides an architecture to store and manipulate groups of objects.

    • Java Collections Framework (JCF) includes interfaces like List, Set, and Map.

    • List example: ArrayList<String> names = new ArrayList<>();

    • Set example: HashSet<Integer> numbers = new HashSet<>();

    • Map example: HashMap<String, Integer> ageMap = new HashMap<>();

    • Collections can dynamica...

  • Answered by AI
Round 2 - HR 

(3 Questions)

  • Q1. Tell me about yourself
  • Ans. 

    I am a passionate software engineer with experience in developing web applications and a strong background in computer science.

    • Experienced in developing web applications using technologies like HTML, CSS, JavaScript, and React

    • Strong background in computer science with knowledge of data structures and algorithms

    • Proficient in programming languages such as Java, Python, and C++

    • Familiar with Agile development methodologies...

  • Answered by AI
  • Q2. Current salary
  • Ans. 

    I prefer to focus on the value I can bring to the company rather than my current salary.

    • Emphasize your skills, experience, and qualifications instead of focusing on current salary

    • Discuss how your salary expectations align with the market rate for the position

    • Avoid disclosing specific salary figures unless necessary

  • Answered by AI
  • Q3. Expected salary
  • Ans. 

    My expected salary is based on my experience, skills, and the market rate for Software Engineers.

    • Research the average salary for Software Engineers in your area and industry

    • Consider your years of experience and level of expertise

    • Factor in any additional skills or certifications that may increase your value

    • Be prepared to negotiate based on the company's budget and benefits package

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in May 2025, where I was asked the following questions.

  • Q1. Work Experience and work details?
  • Ans. 

    I have over 5 years of experience in software development, focusing on web applications and cloud solutions.

    • Developed a scalable e-commerce platform using React and Node.js, improving load times by 30%.

    • Led a team of 4 in migrating legacy systems to AWS, resulting in a 40% reduction in operational costs.

    • Implemented CI/CD pipelines using Jenkins, which decreased deployment times from hours to minutes.

    • Collaborated with cr...

  • Answered by AI
  • Q2. Related to work
  • Q3. Difference between the manual and automation Testing?
  • Ans. 

    Manual testing involves human testers executing test cases, while automation testing uses tools to execute tests automatically.

    • Manual testing is time-consuming and requires human intervention, e.g., exploratory testing.

    • Automation testing is faster and more efficient for repetitive tasks, e.g., regression testing.

    • Manual testing is better for usability testing, where human judgment is crucial.

    • Automation testing is ideal ...

  • Answered by AI
  • Q4. What is the functional Testing?
  • Ans. 

    Functional testing verifies that software functions according to specified requirements and performs its intended tasks.

    • Focuses on user requirements and functionality of the application.

    • Examples include testing login/logout features, data entry forms, and payment processing.

    • Can be performed manually or through automated testing tools.

    • Ensures that the software behaves as expected under various conditions.

    • Common techniqu...

  • Answered by AI
  • Q5. Difference Between Black Box and white Box Testing?
  • Ans. 

    Black box testing focuses on input-output without internal knowledge, while white box testing examines internal code structure.

    • Black box testing evaluates functionality without knowing the internal workings (e.g., testing a web application by checking user inputs).

    • White box testing requires knowledge of the code and internal logic (e.g., unit testing specific functions in a codebase).

    • Black box testing is often used for...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Fast Process.
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Apr 2025, where I was asked the following questions.

  • Q1. Can you explain the different between a stack and queue?
  • Q2. What are the different between threads and process?
  • Ans. 

    Threads are lightweight processes that share the same memory space, while processes are independent with their own memory allocation.

    • Memory Usage: Threads share the same memory space, making them more efficient in terms of memory usage compared to processes, which have separate memory.

    • Communication: Threads can communicate with each other more easily since they share the same memory, while processes require inter-proce...

  • Answered by AI
  • Q3. Tell me about the challenging technical problem you faced and how it was solved?
  • Ans. 

    I faced a significant challenge with a performance bottleneck in a web application, which I resolved through optimization techniques.

    • Identifying the Bottleneck: I used profiling tools to analyze the application and discovered that a specific API call was taking too long to respond.

    • Caching Strategy: Implemented a caching mechanism using Redis to store frequently accessed data, reducing the number of API calls and improv...

  • Answered by AI
  • Q4. Can you discuss a project you worked on that you are particularly proud of?
  • Q5. What instructs you about working at our company
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Explain about Python OOps?
  • Q2. Explain about Django MVC architechture?

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
-

I applied via Company Website

Round 1 - One-on-one 

(1 Question)

  • Q1. Shall we connect tomorrow
Round 2 - Technical 

(1 Question)

  • Q1. Shall we connect this week
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Naukri.com and was interviewed in Jul 2024. There were 2 interview rounds.

Round 1 - Coding Test 

HTML, CSS, JavaScript, mongoDb nodeJs reactjs

Round 2 - Technical 

(5 Questions)

  • Q1. Software development
  • Q2. Web development
  • Q3. Technical support
  • Q4. Hardware support
  • Q5. Financial services

Interview Preparation Tips

Interview preparation tips for other job seekers - Please I select in company and one time give a offer of interview
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Feb 2025, where I was asked the following questions.

  • Q1. Tell. Me. about your. self
  • Q2. Why. should. we. choose you
  • Q3. Why. did. You. leave your.. last. Job
  • Q4. What. are. your. strengths. and. waakensses
  • Q5. What. are. You. goals
  • Q6. What. are. you. salary. experience

Interview Preparation Tips

Interview preparation tips for other job seekers - Speaking slowly and clearly can. helf. You.. appecer relaked and confident

HCLTech Interview FAQs

How many rounds are there in HCLTech Software Engineer interview?
HCLTech interview process usually has 2-3 rounds. The most common rounds in the HCLTech interview process are Technical, HR and Coding Test.
How to prepare for HCLTech Software Engineer 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 Software Engineering, C++, Java, Oracle and PLSQL.
What are the top questions asked in HCLTech Software Engineer interview?

Some of the top questions asked at the HCLTech Software Engineer interview -

  1. Why you choose Machine Learning (during Workshop...read more
  2. what's difference between server.transfer and Response.redir...read more
  3. What is final keyword? Differentiate between final and stat...read more
What are the most common questions asked in HCLTech Software Engineer HR round?

The most common HR questions asked in HCLTech Software Engineer interview are -

  1. Where do you see yourself in 5 yea...read more
  2. What are your strengths and weakness...read more
  3. Why are you looking for a chan...read more
How long is the HCLTech Software Engineer interview process?

The duration of HCLTech Software Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.

Tell us how to improve this page.

Overall Interview Experience Rating

4/5

based on 229 interview experiences

Difficulty level

Easy 27%
Moderate 68%
Hard 5%

Duration

Less than 2 weeks 66%
2-4 weeks 19%
4-6 weeks 6%
6-8 weeks 6%
More than 8 weeks 2%
View more

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HCLTech Software Engineer Salary
based on 25.3k salaries
₹2.7 L/yr - ₹8 L/yr
48% less than the average Software Engineer Salary in India
View more details

HCLTech Software Engineer Reviews and Ratings

based on 2.6k reviews

3.7/5

Rating in categories

3.5

Skill development

3.8

Work-life balance

2.9

Salary

3.8

Job security

3.7

Company culture

2.8

Promotions

3.4

Work satisfaction

Explore 2.6k Reviews and Ratings
Software Engineer-Angular

Noida,

Chennai

+1

6-10 Yrs

Not Disclosed

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