System Design
Data engineering system design interview rounds — 10 real-world scenarios with AWS, Azure & GCP implementations
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Clickstream Data Pipeline
Real-time clickstream capture for targeted ads (Netflix-style)
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Price Drop Notification System
E-commerce price monitoring & notification effectiveness measurement
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Fitness Tracker Data Platform
IoT health data ingestion, modeling and analytics
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Ride-Sharing Analytics Platform
Geospatial data storage, surge pricing and KPI analysis
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1M Req/Sec Pipeline to Warehouse
Extreme-scale ingestion, backpressure handling and warehouse loading
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User Churn Prediction Pipeline
Churn calculation, feature engineering and ML pipeline
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Real-Time Fraud Detection
Low-latency payment fraud scoring with rule engine + ML
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Streaming Recommendation Engine
Music/video personalization with collaborative filtering
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Incremental Lakehouse Architecture
Legacy files + streaming + CDC into unified lakehouse
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CDC Pipeline for Data Lake
Database change capture, schema evolution and replication
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