Cognizant
American multinational information technology services and consulting company.
4 Rounds
~21 Days
Medium
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Backend Engineer
•
Coding
•
medium
Write a Java program to find the first non-repeating character in a string using Java 8 Streams.
#Java 8
#Streams
#Strings
Backend Engineer
•
Coding
•
easy
Given an array of integers and a target sum, return the indices of the two numbers that add up to the target. (Two Sum)
#Arrays
#HashMaps
Backend Engineer
•
Coding
•
easy
Write a program to merge two sorted linked lists into a single sorted linked list.
#Linked Lists
#Pointers
Backend Engineer
•
Coding
•
medium
Given an array of strings, group the anagrams together.
#Strings
#HashMaps
Backend Engineer
•
Coding
•
easy
Write a function to reverse a string in-place without using built-in functions like `StringBuilder.reverse()`.
#Strings
#Two Pointers
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.