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TCS Software Developer Interview Questions and Answers

Updated 8 Jun 2025

277 Interview questions

A Software Developer was asked 1w ago
Q. What is the process for synthesizing data to train a machine learning model with a given minimum number of data points?
Ans. 

Synthesizing data involves techniques to create synthetic datasets for training machine learning models effectively.

  • Identify the target variable and features needed for the model.

  • Use data augmentation techniques, such as rotation or flipping for images.

  • Employ simulation methods to generate data based on known distributions.

  • Leverage generative models like GANs (Generative Adversarial Networks) to create realistic s...

🔥 Asked by recruiter 8 times
A Software Developer was asked 3w ago
Q. Write code to reverse a string.
Ans. 

This code snippet demonstrates how to reverse a string using various programming techniques.

  • Using built-in functions: In Python, you can reverse a string with slicing: `reversed_string = original_string[::-1]`.

  • Using loops: Iterate through the string in reverse order and build a new string: `for char in original_string[::-1]: new_string += char`.

  • Using recursion: Define a function that calls itself with the substrin...

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🔥 Asked by recruiter 5 times
A Software Developer was asked 4w ago
Q. What is a linked list?
Ans. 

A linked list is a linear data structure where elements are stored in nodes, each pointing to the next, allowing dynamic memory allocation.

  • Consists of nodes, each containing data and a reference (or pointer) to the next node.

  • Types include singly linked lists, doubly linked lists, and circular linked lists.

  • Singly linked list: Each node points to the next node; e.g., A -> B -> C.

  • Doubly linked list: Each node p...

🔥 Asked by recruiter 3 times
A Software Developer was asked 1mo ago
Q. What are the pillars of OOP?
Ans. 

The pillars of OOP are encapsulation, inheritance, polymorphism, and abstraction, forming the foundation of object-oriented programming.

  • Encapsulation: Bundling data and methods that operate on the data within one unit (class). Example: A 'Car' class with properties like 'speed' and methods like 'accelerate()'.

  • Inheritance: Mechanism to create a new class using properties and methods of an existing class. Example: '...

What people are saying about TCS

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compulsoryaloe
Verified Icon
2w
student at
ParulInstituteofengineeringandtechnology
Will i get the offer letter?
I got selected for TCS digital profile and had my interview a few weeks ago. The interview was about 30-40 minutes. All the rounds happened in one go, project based, SQL and a dsa questions were asked which I solved in Python, also answered OOPs related questions in java. My question is how many days will it take to get offer letter from TCS and will joining date also come with offer letter? Thanks for ur time..
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Ask anonymously on communities.
🔥 Asked by recruiter 9 times
A Software Developer was asked 1mo ago
Q. What is an array?
Ans. 

An array is a data structure that stores a fixed-size sequence of elements of the same type, allowing for efficient indexing.

  • Arrays can hold multiple values in a single variable, e.g., ['apple', 'banana', 'cherry'].

  • They are zero-indexed, meaning the first element is accessed with index 0.

  • Arrays have a fixed size, defined at the time of creation, e.g., int[] numbers = new int[5];

  • They allow for efficient data retrie...

A Software Developer was asked 1mo ago
Q. What projects have you worked on and what technologies did you use, applying basic DSA principles?
Ans. 

Discussing projects and technologies that utilize basic data structures and algorithms (DSA) in software development.

  • Developed a task management application using arrays to store tasks and linked lists for task prioritization.

  • Implemented a sorting algorithm (like QuickSort) in a project to optimize data retrieval in a database application.

  • Created a simple game using stacks to manage game states and queues for play...

A Software Developer was asked 1mo ago
Q. What is the difference between a HashMap and a HashSet?
Ans. 

HashMap stores key-value pairs, while HashSet stores unique values without duplicates, both using hashing for performance.

  • Data Structure: HashMap is a map that stores key-value pairs, e.g., `HashMap<String, Integer> map = new HashMap<>();`.

  • Uniqueness: HashSet only stores unique values, e.g., `HashSet<String> set = new HashSet<>(); set.add("apple");`.

  • Null Values: HashMap allows one null key ...

Are these interview questions helpful?
A Software Developer was asked 1mo ago
Q. Explain JDK, JRE, and JVM.
Ans. 

JDK, JRE, and JVM are essential components of Java programming, each serving a unique purpose in the development and execution process.

  • JDK (Java Development Kit): A complete toolkit for Java developers that includes the JRE, compilers, and tools for developing Java applications.

  • JRE (Java Runtime Environment): Provides the libraries and components necessary to run Java applications, including the JVM but not the de...

A Software Developer was asked 1mo ago
Q. What is an IOC container in Spring Boot?
Ans. 

An IoC container in Spring Boot manages object creation and dependency injection, promoting loose coupling and easier testing.

  • Dependency Injection: The IoC container automatically injects dependencies into classes, reducing the need for manual instantiation.

  • Inversion of Control: The control of object creation is inverted from the application code to the IoC container, enhancing modularity.

  • Bean Lifecycle Management...

A Software Developer was asked 1mo ago
Q. Explain microservice architecture.
Ans. 

Microservice architecture is a design approach where applications are built as a collection of loosely coupled services.

  • Decentralized Data Management: Each microservice can manage its own database, allowing for flexibility and scalability. For example, an e-commerce application might have separate databases for user accounts, product inventory, and orders.

  • Independent Deployment: Microservices can be deployed indep...

TCS Software Developer Interview Experiences

536 interviews found

Software Developer Interview Questions & Answers

user image chandrika gadaputi

posted on 17 Jan 2025

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I appeared for an interview in Dec 2024.

Round 1 - Aptitude Test 

Numerical aptitude test, logical reasoning test, and technical aptitude test.

Round 2 - Group Discussion 

Case study GD, topic based GD,Role_play GD

Round 3 - HR 

(5 Questions)

  • Q1. Can you tell me yourself ?
  • Ans. 

    I am a software developer with 5 years of experience in Java, Python, and SQL.

    • 5 years of experience in Java, Python, and SQL

    • Strong problem-solving skills

    • Experience working in Agile development environment

    • Familiarity with version control systems like Git

  • Answered by AI
  • Q2. How did you hear about this role?
  • Ans. 

    I found this role through a job posting on LinkedIn.

    • Saw job posting on LinkedIn

    • Applied through company website

    • Referred by a friend who works at the company

  • Answered by AI
  • Q3. What are your long term career goals?
  • Ans. 

    My long term career goal is to become a senior software architect and lead a team of developers to create innovative solutions.

    • Work towards gaining expertise in various programming languages and technologies

    • Take on leadership roles in projects to develop management and communication skills

    • Attend industry conferences and workshops to stay updated on latest trends and advancements

    • Seek opportunities for mentorship and pro...

  • Answered by AI
  • Q4. Do you have any questions for me ?
  • Q5. What do you know about our company?
  • Ans. 

    Your company is a leading software development firm specializing in creating innovative solutions for various industries.

    • Your company has a strong reputation for delivering high-quality software products.

    • You have a diverse portfolio of clients from different industries.

    • Your company values innovation and creativity in software development.

    • Your team is known for its expertise in cutting-edge technologies like AI and bloc...

  • Answered by AI
Round 4 - Technical 

(2 Questions)

  • Q1. What is your favourite programming language?
  • Ans. 

    My favorite programming language is Python because of its simplicity, readability, and versatility.

    • Python is known for its clean and readable syntax, making it easy to learn and understand.

    • Python has a large standard library with built-in modules for various tasks, reducing the need for external libraries.

    • Python is versatile and can be used for web development, data analysis, artificial intelligence, and more.

  • Answered by AI
  • Q2. Can you explain the concept of object oriented programming?
  • Ans. 

    Object oriented programming is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.

    • Objects are instances of classes, which define the structure and behavior of the objects.

    • Encapsulation is the concept of bundling data and methods that operate on the data within a single unit, such as a class.

    • Inheritance allows classes to inherit attribu...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for TCS Software Developer interview:
  • General tropics
  • Communication Skills
  • Time Management
  • Leadership Skills
Interview preparation tips for other job seekers - Network and make connections
Update your resume and online profiles
Research the company
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Interview Preparation Tips

Interview preparation tips for other job seekers - 1. Refine Your Resume & Cover LetterTailor them to each job application.Highlight skills and achievements with measurable results.Keep formatting clean and professional.2. Leverage NetworkingConnect with professionals on LinkedIn.Attend industry events and job fairs.Reach out to former colleagues and mentors.3. Enhance Your Online PresenceOptimize your LinkedIn profile with a strong headline and summary.Remove unprofessional content from social media.Consider creating a personal website or portfolio.4. Apply StrategicallyDon’t apply to every job—focus on quality over quantity.Use job boards, company websites, and referrals.Follow up after applying to express continued interest.5. Prepare for InterviewsResearch the company and role thoroughly.
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
No response

I appeared for an interview in Sep 2024.

Round 1 - Aptitude Test 

An aptitude test evaluates an individual's potential to excel in a specific area by assessing their strengths and weaknesses in particular abilities.

Round 2 - Aptitude Test 

An assessment that measures an individual's inherent abilities and potential for success in a specific activity.

Round 3 - Coding Test 

A coding test is a programming assessment designed to evaluate a candidate's coding skills. It is a standard component of the technical hiring process for software developers and programmers.

Round 4 - Coding Test 

Assessment that evaluates a candidate's coding skills

Round 5 - Group Discussion 

Group discussion (GD) topics for interviews may cover areas such as business, social issues, and current affairs. GDs serve to evaluate a candidate's communication, leadership, and teamwork abilities.

Round 6 - Assignment 

Discussion assignments are prompts that your teacher may assign to you. By participating in these discussions, you can reflect on your learning, share ideas and opinions, or ask and answer questions. Discussions may require you to respond to individual questions or provide multiple responses to an ongoing conversation.

Interview Preparation Tips

Interview preparation tips for other job seekers - Job seekers can improve their chances by researching the job market, preparing their resume and cover letter, and networking.
Research
Know your goals: Consider your values, strengths, and ideal work environment.
Research the company: Anticipate common interview questions.
Prepare your resume
Tailor your resume: Customize your resume for each job application.
Highlight your skills: Highlight how your skills and experience match the job description.
Use keywords: Use relevant keywords in your resume and cover letter.
Prepare for interviews
Prepare your answers: Use the STAR method to prepare your answers.
Research the company: Anticipate common interview questions.
Network
Expand your professional network: You may find that more people can recommend you to a new position.
Use your professional network: You can use your network for career advice.
Other tips Don't limit your search to online resources, Optimize your LinkedIn profile, Use several job-search websites, Keep your resume up-to-date, and Develop your interview skills.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected
Round 1 - Aptitude Test 

20 min for 1 round of interview

Round 2 - One-on-one 

(2 Questions)

  • Q1. Opps concepts with uses
  • Ans. 

    OOPs concepts are fundamental principles in object-oriented programming that help in organizing and managing code efficiently.

    • Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

    • Inheritance: Allows a class to inherit properties and behavior from another class.

    • Polymorphism: Ability to present the same interface for different data types.

    • Abstraction: Hiding the complex implementati...

  • Answered by AI
  • Q2. Multithreading and how to use it
  • Ans. 

    Multithreading allows multiple threads to run concurrently, improving performance and responsiveness.

    • Multithreading is used to execute multiple tasks simultaneously within a single process.

    • It can improve performance by utilizing multiple CPU cores efficiently.

    • Common multithreading libraries include Java's Thread class and C#'s Task Parallel Library.

    • Example: In a web server, multithreading can handle multiple client req...

  • Answered by AI
Round 3 - HR 

(2 Questions)

  • Q1. Introduce yourself
  • Ans. 

    I am a passionate software developer with experience in Java, Python, and web development.

    • Experienced in Java and Python programming languages

    • Skilled in web development using HTML, CSS, and JavaScript

    • Familiar with Agile development methodologies

  • Answered by AI
  • Q2. Dtrength and weaknesses
  • Ans. 

    I possess strong problem-solving skills but sometimes struggle with time management under pressure.

    • Strength: Excellent problem-solving skills, demonstrated by successfully debugging complex issues in previous projects.

    • Weakness: Time management can be challenging; I occasionally underestimate the time needed for tasks, leading to tight deadlines.

    • Strength: Strong communication skills, which help in collaborating effectiv...

  • Answered by AI

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Tell me about yourself
  • Ans. 

    I am a passionate software developer with experience in building web applications using various technologies.

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

    • Proficient in backend development with Node.js, Express, and MongoDB

    • Familiar with version control systems like Git and project management tools like Jira

  • Answered by AI
  • Q2. Explain your projects
  • Ans. 

    I have worked on various projects including a web application for a retail company and a mobile app for a fitness tracker.

    • Developed a web application for a retail company to manage inventory and sales

    • Created a mobile app for a fitness tracker to track workouts and calories burned

    • Implemented RESTful APIs for communication between front-end and back-end systems

  • Answered by AI
Round 2 - Coding Test 

Reverse the number in the array

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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

Round 1 - Coding Test 

Reverse string ,array sorting

Round 2 - HR 

(2 Questions)

  • Q1. Why this company
  • Ans. 

    I admire this company's innovative approach and commitment to excellence in software development, aligning with my career goals.

    • The company's focus on cutting-edge technology, like AI and machine learning, excites me as I want to work on impactful projects.

    • I appreciate the collaborative culture here, which fosters teamwork and creativity, evident in your recent successful product launch.

    • The emphasis on continuous learn...

  • Answered by AI
  • Q2. What do you know about this Company
Round 3 - Technical 

(2 Questions)

  • Q1. What c pointers
  • Ans. 

    C pointers are variables that store memory addresses, allowing for dynamic memory management and efficient data manipulation.

    • Pointers are declared using the '*' symbol. Example: int *ptr;

    • Pointers can point to any data type, including arrays. Example: int arr[]; int *p = arr;

    • Pointers enable dynamic memory allocation using functions like malloc(). Example: int *arr = (int*)malloc(5 * sizeof(int));

    • Pointers can be used to ...

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

    Strings are sequences of characters used to represent text in programming languages.

    • Strings can be defined using single or double quotes. Example: 'Hello' or "World".

    • They are immutable in languages like Python, meaning their content cannot be changed after creation.

    • Common operations include concatenation (joining), slicing (extracting), and searching.

    • Example of concatenation: 'Hello' + ' ' + 'World' results in 'Hello W...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Nodejs internal, how event loop works
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Fibonacci code ,recursion and prime numbers.

Round 2 - Technical 

(2 Questions)

  • Q1. What are ds, explain types...
  • Ans. 

    Data structures (DS) are ways to organize and store data for efficient access and modification.

    • 1. Arrays: Fixed-size collections of elements, e.g., [1, 2, 3].

    • 2. Linked Lists: Collections of nodes, each pointing to the next, e.g., 1 -> 2 -> 3.

    • 3. Stacks: Last-in, first-out (LIFO) structure, e.g., function call stack.

    • 4. Queues: First-in, first-out (FIFO) structure, e.g., print job queue.

    • 5. Trees: Hierarchical struct...

  • Answered by AI
  • Q2. Na

Interview Preparation Tips

Interview preparation tips for other job seekers - All the best, do well n be confident.

Software Developer Interview Questions & Answers

user image Gayathri Sivaraman

posted on 15 Dec 2024

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

(2 Questions)

  • Q1. Java code to find the prime number
  • Ans. 

    Java code to find prime numbers

    • Use a loop to iterate through numbers and check if each number is prime

    • A prime number is a number that is only divisible by 1 and itself

    • Start checking from 2 up to the number itself, if any number divides it then it's not prime

  • Answered by AI
  • Q2. Implicit wait, Explicit Wait
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Jul 2024.

Round 1 - Aptitude Test 

It was a basic filtering round based on aptitude.

Round 2 - Coding Test 

I had two medium-level LeetCode questions.

Round 3 - Technical 

(3 Questions)

  • Q1. During the interview, I was asked both HR and technical questions. Initially, I responded to technical inquiries regarding HTML, MongoDB, SQL, and JavaScript, as they were listed on my resume. After addres...
  • Q2. What are different types of tag in html and tags which do not require closing tag
  • Ans. 

    Different types of HTML tags include block-level tags, inline tags, empty tags, and self-closing tags.

    • Block-level tags: <div>, <p>, <h1>

    • Inline tags: <span>, <a>, <strong>

    • Empty tags: <img>, <br>, <input>

    • Self-closing tags: <img />, <br />

  • Answered by AI
  • Q3. Sql query for highest salary from list of employees table
  • Ans. 

    Use SQL query with MAX function to find highest salary from employees table.

    • Use SELECT MAX(salary) FROM employees;

    • Make sure to replace 'employees' with the actual table name if different.

    • Ensure the column name for salary is correct in the query.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - For TCS (on-campus), we just need to pass through the initial round, as it is more difficult than the actual interview.

TCS Interview FAQs

How many rounds are there in TCS Software Developer interview?
TCS interview process usually has 2-3 rounds. The most common rounds in the TCS interview process are Technical, Aptitude Test and HR.
How to prepare for TCS Software 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 TCS. The most common topics and skills that interviewers at TCS expect are Java, C#, Spring Boot, ASP.Net and Software Development.
What are the top questions asked in TCS Software Developer interview?

Some of the top questions asked at the TCS Software Developer interview -

  1. Every day, we come across different types of computer software that helps us wi...read more
  2. What will happen if you replace class with struct What is vector Can I add part...read more
  3. What is list,tuple? What is shallow copy? Name some libraries in python. What i...read more
What are the most common questions asked in TCS Software Developer HR round?

The most common HR questions asked in TCS Software Developer interview are -

  1. What are your salary expectatio...read more
  2. Why are you looking for a chan...read more
  3. What are your strengths and weakness...read more
How long is the TCS Software Developer interview process?

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

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Overall Interview Experience Rating

4/5

based on 522 interview experiences

Difficulty level

Easy 32%
Moderate 62%
Hard 6%

Duration

Less than 2 weeks 61%
2-4 weeks 24%
4-6 weeks 10%
6-8 weeks 2%
More than 8 weeks 3%
View more
TCS Software Developer Salary
based on 21.2k salaries
₹6.2 L/yr - ₹17.2 L/yr
15% more than the average Software Developer Salary in India
View more details

TCS Software Developer Reviews and Ratings

based on 2k reviews

3.8/5

Rating in categories

3.6

Skill development

4.0

Work-life balance

3.0

Salary

4.5

Job security

3.7

Company culture

2.9

Promotions

3.5

Work satisfaction

Explore 2k Reviews and Ratings
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