TCS
Large multinational IT services and consulting enterprise based in India.
3 Rounds
~14 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
•
System Design
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hard
Design an end-to-end ML system for real-time credit card fraud detection. The system must process 5,000 transactions per second with sub-50ms latency.
#Real-time Processing
#Streaming
#Fraud Detection
#Architecture
Machine Learning Engineer
•
System Design
•
hard
Design a personalized product recommendation engine for an e-commerce client. How do you handle the 'cold start' problem for new users and new products?
#Recommendation Systems
#Collaborative Filtering
#Cold Start
Machine Learning Engineer
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System Design
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hard
Design a pipeline to automatically extract key entities (Vendor Name, Invoice Date, Total Amount) from scanned PDF invoices for an accounting client.
#OCR
#NLP
#Information Extraction
#Pipeline Design
Machine Learning Engineer
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System Design
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hard
Design a batch prediction pipeline that scores 50 million customer records every night to predict churn. The data resides in an AWS S3 data lake.
#Batch Processing
#Cloud Architecture
#PySpark
#AWS
Machine Learning Engineer
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System Design
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medium
Design a scalable architecture for a customer churn prediction model that needs to be retrained weekly with the latest transactional data.
#Continuous Training
#Pipeline Orchestration
#Classification
Difficulty Radar
Based on recent AI-sourced data.
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The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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Think Out Loud
Always explain your thought process before writing code or drawing architecture.