#ml
4 articles
The ML / GenAI System Design Interview Framework
A 7-step, 45-minute framework for ML and GenAI system design rounds — covering the data/feedback loop, the candidate-generation + ranking funnel, and the GenAI decision tree from prompt-engineering to fine-tune, with a hire vs no-hire signals table.
Design a Real-Time Fraud Detection System
Score transactions for fraud inline in milliseconds. Feature stores, streaming velocity features, rules + ML hybrids, graph fraud rings, and the label-delay problem.
Design a Recommendation System (Netflix / TikTok)
Pick the best items for each user from millions of candidates in milliseconds. The two-stage candidate-generation + ranking architecture, embeddings, and feature stores.
Design TikTok / Reels (short-video platform)
A vertical-swipe video feed that feels infinite and clairvoyant. Two-tower retrieval, real-time ranking with Monolith, sub-200ms playback via aggressive preloading, and the For You Page that knows you in 90 seconds.