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
Data Scientist
•
System Design
•
hard
Design a personalized product recommendation system for a large e-commerce client. Walk me through the data, algorithms, and serving architecture.
#Recommendation Systems
#Collaborative Filtering
#Architecture
Data Scientist
•
System Design
•
hard
Design the architecture for a real-time credit card fraud detection system that must return a prediction in under 50 milliseconds.
#Real-time Processing
#Latency
#Streaming
Data Scientist
•
System Design
•
hard
Your batch inference pipeline needs to process 10 million records nightly. How do you design this to be scalable and fault-tolerant?
#Batch Processing
#Distributed Computing
#Spark
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.