Tell me about yourself and why you want to join Infosys.

My name is Priya Sharma, and I completed my B.Tech in Computer Science from VIT Vellore in 2025 with a CGPA of 8.2. During my final year, I built a machine learning-based movie recommendation system using Python and Flask, which I deployed on AWS. I have strong foundations in Java, SQL, and object-oriented programming, and I've completed the InfyTQ Foundation certification to understand Infosys's technology ecosystem. I want to join Infosys specifically because of its scale — serving clients across 50 countries — and its emphasis on continuous learning through platforms like Infosys Lex. The structured Systems Engineer or DSE programme gives freshers real project exposure within 6 months of joining, which aligns with my goal of becoming a full-stack developer within two years.

Why do you want to work at Infosys over other IT companies like TCS or Wipro?

Infosys's positioning as a next-generation digital services and consulting company distinguishes it from traditional IT outsourcing firms. I'm particularly drawn to Infosys's investment in AI and automation — the Infosys Cobalt cloud platform, Topaz AI suite, and the NIA (next-generation Integrated AI) framework represent the kind of cutting-edge work I want to be close to early in my career. Infosys Lex, the company's internal learning platform with over 400 skill-based learning paths, means I won't stagnate. I also value Infosys's reputation for transparency — it was one of the first Indian IT companies to adopt strong corporate governance standards, which reflects the company value of 'Integrity and Transparency' that I personally connect with.

Explain your final year or major project in detail.

My major project was a real-time crop disease detection system built for Indian farmers, using a Convolutional Neural Network (CNN) trained on the PlantVillage dataset of 87,000+ images. The system was deployed as a mobile-responsive web app using Flask and hosted on Heroku. A farmer could upload a photo of a diseased leaf, and the model returned the disease name, confidence score, and recommended treatment in under 3 seconds. The backend used a PostgreSQL database to log queries and user feedback for model improvement. I handled the model training (TensorFlow/Keras), the Flask REST API, and the database schema. The key challenge was handling class imbalance in the training data — I resolved this using image augmentation and the SMOTE technique. The project achieved 91% validation accuracy.

What are the four pillars of Object-Oriented Programming? Explain each with an example.

The four pillars are Encapsulation, Abstraction, Inheritance, and Polymorphism. Encapsulation is bundling data and the methods that operate on that data within a single class, and restricting direct access using access modifiers — for example, a `BankAccount` class where the `balance` field is private and accessible only through `deposit()` and `withdraw()` methods. Abstraction is hiding implementation details and exposing only the necessary interface — for example, when you call `Collections.sort()` in Java, you don't need to know the underlying sorting algorithm. Inheritance is the mechanism by which a child class acquires properties and behaviours from a parent class — for example, a `SavingsAccount` class extending a `BankAccount` class. Polymorphism allows one interface to be used for different data types — for example, a single `display()` method behaving differently in `Manager` vs. `Employee` subclasses through method overriding.

Write a SQL query to find all employees who earn more than the average salary in their department.

The query uses a correlated subquery: `SELECT e1.name, e1.department, e1.salary FROM Employee e1 WHERE e1.salary > (SELECT AVG(e2.salary) FROM Employee e2 WHERE e2.department = e1.department);`. This works by calculating the average salary for each department inline for every row. An alternative using window functions, which performs better on large datasets, is: `SELECT name, department, salary FROM (SELECT name, department, salary, AVG(salary) OVER (PARTITION BY department) AS dept_avg FROM Employee) t WHERE salary > dept_avg;`. The window function approach avoids re-calculating the department average for every row, making it significantly faster on tables with millions of records. Always clarify with the interviewer whether NULL salary values should be excluded — add a `WHERE salary IS NOT NULL` clause if needed.

What is the difference between an abstract class and an interface in Java?

An abstract class in Java can have both abstract methods (no body) and concrete methods (with a body), can have instance variables with any access modifier, and can have constructors. A class can extend only one abstract class (single inheritance). An interface, prior to Java 8, could only have abstract methods and `public static final` constants. From Java 8 onwards, interfaces can have `default` and `static` methods with bodies, and from Java 9, private methods. A class can implement multiple interfaces (multiple inheritance of type). The rule of thumb is: use an abstract class when your classes share a common state or code (e.g., a `Vehicle` abstract class with a `fuelType` field), and use an interface when you are defining a capability or contract that unrelated classes should implement (e.g., a `Serializable` or `Comparable` interface).

What is a deadlock in Operating Systems and how can it be prevented?

A deadlock occurs when two or more processes are blocked indefinitely, each waiting for a resource held by the other. The four necessary conditions for a deadlock — known as the Coffman conditions — are Mutual Exclusion, Hold and Wait, No Preemption, and Circular Wait. An example: Process A holds a database lock and waits for a file lock; Process B holds the file lock and waits for the database lock — neither can proceed. Deadlock prevention works by eliminating at least one of the four conditions: for example, enforcing a strict resource ordering (eliminate Circular Wait) so every process must acquire resources in a predefined sequence. Deadlock detection and recovery involves periodically checking for circular dependencies in the resource allocation graph and preempting a process if one is found. In Java, deadlocks in multithreaded programs are commonly debugged using thread dumps.

What is the difference between GET and POST HTTP methods?

GET is used to retrieve data from a server; it appends parameters in the URL query string, is idempotent (making the same request multiple times produces the same result), is cacheable by browsers, and has a URL length limitation (typically 2048 characters). POST is used to send data to the server to create or update a resource; it sends data in the request body (not visible in the URL), is not idempotent, is not cached by default, and has no practical data size limitation. In terms of security, GET requests should never be used for sensitive data (passwords, payment information) because the URL is stored in browser history, server logs, and referrer headers. POST is significantly more secure for form submissions. In RESTful APIs, GET maps to Read, POST maps to Create, PUT maps to Update, and DELETE maps to Delete.

Describe a situation where you worked under pressure and how you handled it.

During my second year, I was part of a 4-member team that had to present a working prototype for a national-level hackathon within 24 hours. Six hours before the submission deadline, our team's main developer fell ill and was unable to continue. I stepped in to complete the backend API integration — a module I had not originally been assigned — while simultaneously coordinating with the front-end developer to ensure our interfaces were compatible. I communicated clearly with the team about what I could and could not deliver in the remaining time, prioritised the core demo flow over secondary features, and we submitted a working prototype. We finished third among 150 teams. The lesson I took from this is that under pressure, clear communication and ruthless prioritisation matter more than technical brilliance.

What are your greatest strengths and one area where you are still developing?

My strongest professional attribute is the ability to break complex problems into smaller, manageable components — something I've consistently applied in academic projects and hackathons. I also communicate technical concepts clearly to non-technical teammates, which I've found valuable in group projects where not all members share the same background. For my development area: I am actively working on improving my time estimation when scoping a new technical task. I tend to optimise for thoroughness rather than speed, which sometimes causes me to underestimate timelines. To address this, I've started using timeboxing and comparing my estimates to actuals after each project task to calibrate my judgement. I'm confident this will improve with more professional experience at Infosys.

What is InfyTQ and is it mandatory for Infosys interviews in 2026?

InfyTQ (Infosys TQ) is Infosys's official online learning and assessment platform, available at infytq.onlineinfosys.com. It offers free certification courses in Java, Python, databases, and data structures — aligned directly with what Infosys tests in its technical interviews. While InfyTQ certification is not always mandatory for the SE track, it is effectively required for DSE track consideration at most campuses. Even where not mandatory, candidates with a Specialist-level InfyTQ badge are given preference during shortlisting. Create your InfyTQ profile as soon as you decide to target Infosys, ideally 2–3 months before your interview.

What is the difference in salary between Infosys SE and DSE in 2026?

The Infosys Systems Engineer (SE) package in 2025–26 is approximately ₹3.6 LPA to ₹4.5 LPA (CTC) for freshers. The Digital Specialist Engineer (DSE) package is significantly higher, ranging from approximately ₹6.5 LPA to ₹9 LPA depending on the specialisation and location. DSE roles are typically focused on software development, cloud, data engineering, and full-stack work, while SE roles cover a broader range of IT services. The DSE track has a higher NQT cutoff, a more rigorous coding assessment, and typically requires at least a CGPA of 7.5+ and strong programming fundamentals. If you qualify for DSE, it is always worth targeting over SE.

How long does the Infosys hiring process take from application to joining in 2026?

For campus hiring through InfyTQ, the end-to-end process typically takes 3–6 months. After the online assessment (InfyTQ test), shortlisted candidates are called for technical and HR interviews, which are usually conducted within 3–6 weeks. Offer letters follow within 2–4 weeks of the interview. The joining date is typically 3–6 months after the offer letter, aligned to Infosys's batched joining cycles. For lateral hiring through the iApply portal (infosys.com/careers), experienced candidates typically go through 3–6 interview rounds over 4–8 weeks, with offer-to-joining timelines of 30–60 days.

Does Infosys hire from non-IIT, non-NIT colleges across India?

Yes — the overwhelming majority of Infosys's Indian fresher intake comes from Tier-2 and Tier-3 engineering colleges across India. Infosys's campus reach spans hundreds of colleges through its InfyTQ platform, which standardises assessment across institutions regardless of college brand. The key eligibility criteria are a minimum 65% (or 6.5 CGPA) across Class 10, Class 12, and graduation, no active backlogs, and no year gaps. College name is not a screening criterion in Infosys's standardised hiring process — your NQT/InfyTQ score and interview performance are what matter.

How should I prepare for the Infosys technical interview as a fresher in 2026?

Focus your preparation on four areas: (1) Your project — know it deeply, draw the architecture, explain every technology decision; (2) OOP concepts in Java or C++ — all four pillars with code examples; (3) SQL — JOINs, subqueries, window functions, and GROUP BY; (4) DSA basics — arrays, linked lists, stacks, queues, sorting algorithms, and Big O notation. Infosys does not typically ask very hard DSA problems in the SE track; easy-to-medium LeetCode problems are sufficient. For DSE, aim for medium-to-hard problems. Also prepare Operating System fundamentals (process vs. thread, deadlock, scheduling algorithms) and Computer Networks basics (OSI model, TCP vs. UDP, HTTP methods). Two InfyTQ practice tests per week in the month before your interview is a proven preparation rhythm.

Infosys Interview Questions 2026 — Complete Guide for Indian Job Seekers

Company Overview & Hiring Philosophy

Infosys is India’s second-largest IT services company and one of the most recognisable Indian brands globally. With over 3.2 lakh (320,000+) employees and annual revenues exceeding $18 billion, Infosys serves clients across banking, insurance, retail, life sciences, and manufacturing in more than 50 countries. For Indian engineering graduates, Infosys represents a structured, well-resourced first employer with strong training infrastructure and genuine global exposure.

Infosys’s hiring philosophy is anchored in its five core values: Client Value, Leadership by Example, Integrity and Transparency, Fairness, and Excellence (C-LIFE). Unlike TCS, which historically prioritised scale above specialisation, Infosys has increasingly differentiated its hiring tracks to build a more capable fresher cohort. The DSE (Digital Specialist Engineer) track, in particular, is designed to bring in candidates with stronger programming fundamentals and place them on digital transformation and cloud projects faster.

What sets Infosys apart as an employer in the Indian IT landscape is its investment in structured upskilling. Infosys Lex, the company’s internal digital learning platform, hosts over 400 learning paths covering everything from Java fundamentals to AI, cloud certifications, and soft skills. Infosys expects its employees to use Lex proactively, and candidates who mention it in interviews consistently receive positive feedback from HR teams.

The Infosys Selection Process

The Infosys fresher hiring process in 2026 consists of three key stages:

Stage 1: InfyTQ Assessment / Online Aptitude Test

InfyTQ (infytq.onlineinfosys.com) is Infosys’s campus hiring platform and the entry point for most freshers. The assessment includes:

Aptitude section — Quantitative reasoning, logical reasoning, and verbal ability (similar difficulty to TCS NQT aptitude sections)
Coding section — 2 programming problems in Java, Python, or C++ (SE: easy-medium; DSE: medium-hard)
InfyTQ profiling — Candidates are encouraged to complete InfyTQ certifications (Foundation or Specialist level), which are factored into shortlisting for the DSE track

Candidates applying off-campus apply via the Infosys iApply portal (infosys.com/careers). Lateral candidates (1+ years experience) go through a separate process with 3–6 interview rounds.

Stage 2: Technical Interview

The Infosys technical interview is 45–60 minutes and is the most rigorous stage. Interviewers cover:

Project deep-dive — Architecture, database design, technology choices, challenges, and what you’d do differently
OOP concepts — All four pillars with Java examples; abstract class vs. interface is asked very frequently
SQL — SELECT with JOINs, correlated subqueries, GROUP BY + HAVING, and occasionally window functions (for DSE)
DSA — Arrays, strings, linked lists, basic sorting; sometimes a live coding problem for DSE candidates
OS and CN fundamentals — Deadlocks, process scheduling, OSI model, TCP vs. UDP

Check whether your resume contains the technical keywords required by Infosys. Scan Resume with ATS Checker →

Stage 3: HR Interview

The Infosys HR round focuses on communication quality, attitude, and values alignment. Key questions include:

Tell me about yourself and your career goals
Why Infosys over TCS or Wipro?
Are you comfortable with rotational shifts or relocation? (important for BPM/SPE track)
What do you know about Infosys Lex / InfyTQ?
Describe a challenge you faced and how you resolved it

Communication clarity is evaluated actively — interviewers note whether you can explain a technical concept in plain English, reflecting Infosys’s client-facing model.

Practice communication, confidence, pacing, filler words, and HR responses. Try Infosys HR Mock Interview →

Candidate Interview Experience: A Real-Life Walkthrough

To give you a realistic picture of what to expect, here is a detailed, end-to-end interview experience of a B.Tech Computer Science student from a Tier-2 engineering college in Pune who was selected for the Digital Specialist Engineer (DSE) role in 2026.

Part 1: The Online Test (InfyTQ Platform)

“The online round was hosted on the InfyTQ platform. We had three main sections:

Aptitude (25 minutes): Focused heavily on critical thinking, data interpretation, and quantitative puzzles. Time management was tight here.
Pseudocode & Technical MCQ (35 minutes): Tested output tracking for snippets in Java and Python. Many questions were focused on dry-running loops, recursive calls, and identifying memory references.
Coding Section (3 hours): There were 2 coding questions. The first was an array-manipulation problem (medium difficulty, solvable using a hash map). The second was a dynamic programming question related to subset sums. Solving 1 question completely got you shortlisted for the Systems Engineer (SE) interview, while solving both with optimal time complexity unlocked the DSE technical round.”

Part 2: The Technical Interview (45 Minutes)

“The technical interview was conducted on the Infosys Meridian video platform. The interviewer was friendly but very focused on the fundamentals.

The Project Deep-Dive (15 mins): The interviewer asked me to share my screen and open my project repository. I had built a library management API. They asked me to explain the database schema and write a SQL query to find the most borrowed book in the last 30 days. They also asked why I chose a relational database over MongoDB.
Core Concepts (20 mins): We spent a lot of time on Object-Oriented Programming (OOP) concepts. I was asked to write a snippet demonstrating polymorphism and explain abstract classes vs. interfaces. They also asked about deadlocks, process synchronization, and the difference between TCP and UDP.
Coding Challenge (10 mins): I was asked to write a function on a shared notepad to check if a string is an anagram of another, optimizing it to run in (O(N)) time complexity.”

Part 3: The HR Round (15 Minutes)

“The HR round was brief and focused on behavioral alignment and communication style.

The Discussion: The HR manager asked about my relocation preferences, my willingness to work in rotational shifts, and what I knew about the Infosys Lex platform and the Mysore training center.
Key Question: ‘What would you do if your team member was not contributing to a critical client deliverable?’ I used the STAR method to answer, highlighting a similar experience from a college hackathon where I structured responsibilities to keep the project on track.
Outcome: I received my selection mail 3 weeks later, with a joining date for the Mysore training program in August.”

Infosys-Specific Preparation Tips

Candidates who successfully clear Infosys interviews consistently follow these preparation patterns:

1. Complete an InfyTQ certification before your interview. Even if it’s just the Foundation level, having a completed InfyTQ certification on your profile signals commitment. Specialist-level certification (Java or Python) is a meaningful advantage for the DSE track.

2. Prepare your project for a 20-minute conversation. Practise explaining your project’s architecture in 3 minutes, then go deeper on any module for 5 more minutes. Prepare for follow-ups: “Why did you choose MySQL over MongoDB?” or “How would you scale this system to 1 million users?”

3. Know Infosys’s values by name (C-LIFE). In the HR round, frame your answers using Infosys values. For example, when asked about a challenge: “This situation tested my ability to maintain ‘Integrity and Transparency’ — I chose to flag the delay early rather than hide it.”

4. Practise explaining technical concepts to a non-technical person. Infosys interviewers actively test whether you can simplify. In your preparation, practise explaining OOP, APIs, or databases to a family member who is not in IT. This builds the communication muscle Infosys looks for.

5. Know both SE and DSE track expectations. Even if you applied for SE, understand what DSE requires — sometimes interview panels ask DSE-level coding questions to see who performs above expectations and flag them for reconsideration.

6. Prepare for at least 3 SQL queries by hand. Second-highest salary, employees earning above department average, and a three-table JOIN query are the most commonly tested. Write them without IDE assistance.

Resume Tips for Infosys

Infosys’s iApply and campus hiring portals use ATS parsing before shortlisting. Check your ATS score against Infosys job descriptions before submitting.

Format: Single or two-page resume, clean single-column layout. PDF format is preferred for iApply submissions. Avoid tables, sidebars, and graphics — the Infosys ATS frequently fails to parse these correctly. If you’re compiling a new application, check out our Software Engineer Resume Guide or our comprehensive Fresher Resume Guide for formats that pass standard IT services screening.

Keywords Map: Refer to our direct Java Developer ATS Keywords sheet to optimize your bullet points.
Company Hub: Visit the central Infosys Company Hub to access all related templates and guides. If you want to compare your resume formatting against benchmarks from platforms like Jobscan or TealHQ, check our detailed comparison guides: FundoCareer vs Jobscan or FundoCareer vs TealHQ.

Keywords to include (Infosys-specific): Java, Python, SQL, OOP, Data Structures, REST APIs, DBMS, Operating Systems, Computer Networks, InfyTQ, Agile, SDLC, Git. CGPA must be stated clearly — Infosys’s portal has a CGPA filter and a 65% minimum.

What NOT to include:

Skills you cannot demonstrate live. Infosys technical interviewers will ask you to use any tool or technology listed on your resume.
“Familiar with” or “exposure to” — use “Proficient in” only for skills you can demonstrate confidently.
Percentage/CGPA mismatches across Class 10, Class 12, and UG — Infosys’s BGV will verify all three.

Build your resume with a format that is Infosys ATS-compatible and correctly highlights your OOP skills, project details, and InfyTQ certifications. An AI mock interview calibrated to Infosys’s technical and HR round questions will help you benchmark your project explanation, SQL queries, and communication quality before the real interview.

Infosys (Fresher to 3 years) Interview Questions with Model Answers

These are real questions asked in Infosys (Fresher to 3 years) interviews in India, with model answers that interviewers have told us they score highly. Each answer is self-contained.

Common Mistakes in Infosys (Fresher to 3 years) Interviews

These are the mistakes that eliminate candidates at this stage — often before the technical round even begins.