(Online metrics: CTR, revenue, conversion. Offline metrics: AUC, RMSE, F1-Score). Scale: How many users/requests per second? Step 2: Data Engineering & Feature Engineering (The "Fuel") ML systems are data-hungry.
: Sections labeled "Talking Points" suggest specific questions for the interviewer, helping candidates drive the conversation—a skill that reviewers note accounts for nearly 50% of the interview score. Comparison with Other Resources Primary Focus Ali Aminian & Alex Xu Interview Prep Highly structured 7-step framework; 200+ diagrams. Sometimes lacks extreme technical depth for staff roles. Chip Huyen Production ML Deep dive into MLOps and production trade-offs. Less focused on specific interview case studies. Khang (Various) General ML Covers broad basics. Often receives mixed reviews regarding structure and depth. Is the PDF worth it?
He updated his curriculum in late 2023/2024 to include: (Online metrics: CTR, revenue, conversion
What (Senior, Staff, Principal) are you aiming for?
Whether a resource is "better" depends on your specific needs, learning style, and what you're looking for (e.g., depth of content, practice problems, video lectures). It's helpful to: Step 2: Data Engineering & Feature Engineering (The
Cracking the Machine Learning System Design Interview: Is Ali Aminian’s Blueprint Better?
Unlike resources that focus only on models, this book covers the entire ML lifecycle, including data collection, feature engineering, serving infrastructure, scaling, and monitoring. Sometimes lacks extreme technical depth for staff roles
Low latency (milliseconds) requires careful engineering (caching, quantization). Step 6: Monitoring and Maintenance (The "Lifecycle")
When executing your design on the whiteboard, structure your thoughts around this modern operational flow:
Never start drawing a system immediately. Spend the first 5 to 7 minutes asking targeted questions. Determine the daily active users (DAU), the acceptable latency budget (e.g., under 100ms), and the available hardware constraints (CPU vs. GPU inference). Draw Distinct Training vs. Serving Pipelines
Unlike a video course or a locked e-book, Aminian’s PDF circulates as a living document—often updated with community notes on newer topics like LLM agents and RAG pipelines.