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TCS Software Developer Interview Questions and Answers

Updated 27 Jun 2025

238 Interview questions

A Software Developer was asked 7mo ago
Q. What is your reason for joining TCS?
Ans. 

I am drawn to TCS for its innovation, global presence, and commitment to employee growth and development.

  • TCS is a leader in technology and innovation, providing opportunities to work on cutting-edge projects.

  • The company's global presence allows for diverse experiences and collaboration with international teams.

  • TCS emphasizes continuous learning and professional development, offering various training programs.

  • The s...

A Software Developer was asked 7mo ago
Q. How do you implement a singleton class?
Ans. 

Singleton class ensures only one instance of a class is created and provides a global point of access to it.

  • Use a private constructor to prevent instantiation of the class from outside.

  • Create a static method to return the instance of the class, creating it if it doesn't exist.

  • Maintain a private static variable to hold the instance of the class.

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🔥 Asked by recruiter 3 times
A Software Developer was asked 7mo ago
Q. What is DevOps?
Ans. 

Devops is a software development methodology that combines software development (Dev) with IT operations (Ops) to shorten the systems development life cycle.

  • Devops focuses on collaboration, automation, and integration between developers and IT operations teams.

  • It aims to improve the speed and quality of delivering software applications.

  • Devops practices include continuous integration, continuous delivery, and infra...

A Software Developer was asked 7mo ago
Q. Coding part of an python
Ans. 

The question involves coding in Python.

  • Use Python syntax and libraries to solve the problem.

  • Break down the problem into smaller tasks and tackle them one by one.

  • Test your code thoroughly to ensure it works correctly.

  • Consider efficiency and readability of your code.

What people are saying about TCS

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a senior associate
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Tata's lost its touch? TCS ain't what it used to be :-(
Tata is not the same after Sir Ratan Tata! TCS used to really look after its employees, even when they were on the bench. Now, things have changed and it's disappointing.
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🔥 Asked by recruiter 16 times
A Software Developer was asked 7mo ago
Q. Explain the concepts of OOPS.
Ans. 

Object-Oriented Programming (OOP) is a paradigm based on objects, encapsulating data and behavior for modular code design.

  • Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).

  • Inheritance: Mechanism to create a new class from an existing class, inheriting attributes and methods (e.g., a 'Dog' class inheriting from an 'Animal' class).

  • Polymorphism: Ability to present the s...

A Software Developer was asked 8mo ago
Q. Explain how JVM and JDK work.
Ans. 

JVM is a virtual machine that executes Java bytecode, while JDK is a development kit that includes tools for developing Java applications.

  • JVM stands for Java Virtual Machine and is responsible for running Java bytecode on different platforms.

  • JDK stands for Java Development Kit and includes tools like compiler, debugger, and libraries for developing Java applications.

  • JDK contains JRE (Java Runtime Environment) whic...

A Software Developer was asked 8mo ago
Q. Explain linked list in singly linked list.
Ans. 

A singly linked list is a data structure where each element points to the next element in the sequence.

  • Each element in a singly linked list is called a node.

  • Nodes contain data and a reference to the next node in the sequence.

  • The last node points to null to indicate the end of the list.

  • Traversal in a singly linked list starts from the head node and follows the next pointers.

  • Insertion and deletion operations can be ...

Are these interview questions helpful?
A Software Developer was asked 8mo ago
Q. How does API work?
Ans. 

API works as a set of rules and protocols that allows different software applications to communicate with each other.

  • API acts as an intermediary that allows two different software programs to talk to each other

  • API specifies the methods and data formats that applications can use to request and exchange information

  • API can be used to access data or functionality from a remote server, such as retrieving weather data f...

A Software Developer was asked 8mo ago
Q. How do you use indexing?
Ans. 

Indexing is used to optimize database queries by creating data structures that allow for faster retrieval of information.

  • Indexing involves creating data structures like B-trees or hash tables to store key-value pairs for faster retrieval.

  • Indexes can be created on columns in database tables to speed up search queries.

  • Examples of indexing include creating a primary key index on a unique identifier column or a non-cl...

🔥 Asked by recruiter 9 times
A Software Developer was asked 8mo ago
Q. What is the difference between a list and a tuple?
Ans. 

List is mutable, tuple is immutable in Python.

  • List can be modified after creation, tuple cannot.

  • List uses square brackets [], tuple uses parentheses ().

  • List is used for collections of items that may change, tuple for fixed collections.

  • Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)

TCS Software Developer Interview Experiences

541 interviews found

Interview experience
4
Good
Difficulty level
Hard
Process Duration
6-8 weeks
Result
Selected Selected

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

  • Q1. Be ready to explain and implement common data structures like arrays, linked lists, trees, and graphs, and algorithms like sorting and searching.
  • Q2. Expect questions on basic programming concepts like loops, conditions, and data types, as well as your preferred programming language
  • Q3. Be prepared to discuss networking concepts like TCP/IP, IP addressing, and network protocols.
  • Q4. Understand OOPs concepts like classes, objects, inheritance, polymorphism, and abstraction.

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
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview in Dec 2024, where I was asked the following questions.

  • Q1. What is sql
  • Ans. 

    SQL (Structured Query Language) is a standard programming language for managing and manipulating relational databases.

    • SQL is used to perform tasks such as querying data, updating records, and managing database structures.

    • Common SQL commands include SELECT (to retrieve data), INSERT (to add new records), UPDATE (to modify existing records), and DELETE (to remove records).

    • Example of a SELECT statement: SELECT * FROM user...

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

    Object-Oriented Programming (OOP) is a programming paradigm based on the concept of objects, which can contain data and code.

    • Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).

    • Inheritance: Mechanism to create a new class using properties and methods of an existing class (e.g., a 'Dog' class inheriting from an 'Animal' class).

    • Polymorphism: Ability to present the same interf...

  • Answered by AI
  • Q3. What is python
  • Ans. 

    Python is a high-level, interpreted programming language known for its readability and versatility in various applications.

    • Easy to learn: Python's syntax is clear and intuitive, making it accessible for beginners. Example: print('Hello, World!')

    • Versatile: Used in web development, data analysis, artificial intelligence, scientific computing, and more.

    • Rich libraries: Python has a vast ecosystem of libraries like NumPy fo...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - good
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

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
  • Q2. What is strings

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.

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 527 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 3%
More than 8 weeks 3%
View more
TCS Software Developer Salary
based on 21.4k salaries
₹6.5 L/yr - ₹17.2 L/yr
14% 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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