Infosys Interview Questions (2026)

149 questions across 9 categories · Updated July 2026

Infosys interviews for software engineering roles include a hackathon/coding round, technical interview covering data structures, algorithms, and CS fundamentals, and an HR round. Infosys also evaluates communication skills and problem-solving aptitude, especially for system engineer and specialist programmer tracks.

Analytical

What formula calculates the area of a circle given its radius?

What is the best way to find the middle of three numbers?

What are some basics about number systems and logical thinking in aptitude?

What are the responsibilities of a system analyst in software projects?

How do you find the middle of three numbers efficiently?

What is the solution to the Number of Open Doors problem?

What is a Data Analyst?

What skills do you possess that make you suitable for this job?

How do you determine the greatest of three numbers logically?

What is the algorithm to check if four points form a square?

What is MIS?

Increase the dashboard performance

How do you convert temperatures between Celsius and Fahrenheit scales?

Behavioral

Why choose the system analysis role?

How do you with other hand conflict?

How do you handle conflict with colleagues or team members?

How do you handle a problem?

How do you handle a problem when you don't know the solution immediately?

How do you handle stress or pressure in your daily work routine?

How do you handle pressure and stress in high-stakes environments?

How do you handle pressure and stress?

How do you handle pressure and stress during critical deadlines?

How do you handle pressure and stress in a fast-paced environment?

What are your greatest strengths and biggest weaknesses?

Why is work-life balance important in your experience?

What are your strengths and weaknesses in a professional setting?

What are your strengths and weaknesses?

Describe a time you faced a challenge or failure and how you handled it

Describe a time you faced a challenge or failure in your career

What are the benefits of hardworking and smart working?

Coding

Write Selenium and Java code to automate an Amazon search

What is the binary representation of a given integer?

How do you check if an array is sorted in code?

How do you check if an array is sorted in a coding interview?

Can you explain how to generate Fibonacci numbers iteratively?

How do you automate Amazon search using Selenium and Java?

What strategy do you use to solve the Kadane's Algorithm problem?

What is Sling model code and how is it used in AEM?

What is the approach to find common divisors of two numbers?

How would you merge two sorted arrays without extra space?

How do you check if a number is a power of another number?

What is the best way to sort characters in a string alphabetically?

How would you solve the Two Sum problem with optimal performance?

How do you determine if a sentence is a palindrome ignoring punctuation?

What is the method to sum all prime numbers up to N?

How do you identify Armstrong numbers programmatically?

How do you check if an array is sorted in linear time?

Can you describe the steps to merge two sorted arrays without extra space?

How do you check if two matrices are identical element-wise?

What is the most efficient way to count digits in a number?

How do you add two matrices programmatically?

Can you explain how to reverse a string efficiently in Java?

What is the best strategy to reverse a string efficiently?

What is the process to convert a number from any base to decimal?

Can you print numbers from 1 to N without using loops?

Data Structures

Explain the CDC process in databases and Informatica.

Can you describe how to detect a cycle in a linked list efficiently?

DSA

Can you explain the 0-1 Knapsack problem and its solution?

Can you explain Kadane's Algorithm for maximum subarray sum?

How would you implement Kadane's Algorithm for maximum subarray sum?

What is the best way to find the majority element in an array?

How would you solve the Two Sum problem efficiently?

What are real-world applications of a doubly-linked list?

Can you explain how to reverse a string efficiently?

What strategy removes duplicates from a sorted array efficiently?

What is the approach to find the longest palindromic substring?

Explain the Fibonacci series and its generation.

How do you maximize profit in a single stock transaction scenario?

How would you calculate the sum of prime numbers up to N?

What are some real-world applications of a doubly-linked list?

What is the optimal approach to solve the Two Sum problem?

How do you calculate the maximum possible sum of products?

What is the most efficient way to reverse a string?

How do you check if an array is sorted in a single pass?

Can you explain how to reverse a string in-place efficiently?