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
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System Design
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medium
A client wants to build an internal chatbot to query their proprietary PDF documents. Would you recommend fine-tuning an LLM or using RAG (Retrieval-Augmented Generation)? Why?
#Generative AI
#LLMs
#RAG
#Architecture
Machine Learning Engineer
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System Design
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hard
Design a personalized product recommendation system for a large e-commerce client. Walk me through the data, model choices, and serving architecture.
#Recommendation Systems
#Architecture
#Scalability
Machine Learning Engineer
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System Design
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hard
Design a scalable batch scoring pipeline that needs to process 100 million records every night.
#Batch Processing
#Big Data
#Spark
#Airflow
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.