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
Machine Learning Engineer
•
Coding
•
medium
Write a Python function to find the top K frequent elements in an array. Can you optimize it to run in O(N log K) time?
#Python
#Heaps
#Hash Maps
Machine Learning Engineer
•
Coding
•
easy
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.
#Python
#Stacks
#Strings
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.