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
•
medium
Walk me through the process of taking a trained scikit-learn model and deploying it as a REST API in a production environment.
#Deployment
#FastAPI/Flask
#Docker
Data Scientist
•
System Design
•
medium
A model deployed for a retail client 6 months ago is showing degraded performance. What are the types of model drift, and how do you detect them?
#Model Monitoring
#Data Drift
#Concept Drift
Data Scientist
•
Technical
•
medium
Describe your experience using cloud platforms (AWS SageMaker, Azure ML, or GCP Vertex AI) for end-to-end model training and deployment.
#Cloud Computing
#AWS
#Azure
#GCP
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.