COURSE 01 · 100% FREE
Free Senior & Staff System Design Interview Prep
Learn what separates a Senior-level answer from a Staff-level answer — and build the foundation for AI system design interviews.
Course overview
Most system design prep teaches you to name components. This course teaches you to reason like the engineer interviewers are actually looking for: someone who scopes ambiguity, defends tradeoffs with numbers, designs for failure, and owns the system in production. Every lesson ends by connecting the skill to an AI engineering interview, so the foundation you build here transfers directly to RAG, LLM, and AI infrastructure roles.
Who this is for
Senior engineers preparing for Staff interviews
Backend engineers moving into AI engineering
SDEs who know distributed systems but need to translate it for AI interviews
Engineers preparing for AI system design interviews
What you will learn
- How to structure a system design answer under time pressure.
- The specific signals interviewers use to separate Senior from Staff.
- How to reason about reliability, failure modes, and operational ownership.
- How every one of these skills maps onto AI engineering interviews.
Module list
Where the bar actually moves: depth of tradeoff reasoning, ownership, and influence beyond your own code.
Practice questions
Apply each module to a real, interview-grade question. Every breakdown is free.
- 01Design a Notification PlatformSENIOR / STAFFView →
- 02Design a Rate LimiterSENIOR / STAFFView →
- 03Design a Feature Flag SystemSENIOR / STAFFView →
- 04Design a RAG Customer Support SystemAI SYSTEM DESIGN · STAFFView →
- 05Design an LLM Evaluation PlatformAI SYSTEM DESIGN · STAFFView →
- 06Design AI Copilot Infrastructure for Microsoft 365AI SYSTEM DESIGN · STAFFView →
- 07Design a Distributed Task SchedulerSTAFFView →
- 08Design a Real-Time Event Analytics SystemSTAFFView →
- 09Design Enterprise Identity & Access ManagementSTAFFView →
- 10Design a Distributed Logging & Monitoring SystemSTAFFView →
- 11Design a Real-Time Ad Serving SystemSTAFFView →
- 12Design a Build System for a Billion-Line MonorepoSTAFFView →
- 13Design a Product Search & Ranking SystemSTAFFView →
- 14Design a Real-Time Driver Location Tracking SystemSTAFFView →
- 15Design a Real-Time Ride Matching SystemSTAFFView →
- 16Design an ML Model Serving PlatformAI SYSTEM DESIGN · STAFFView →
- 17Design an ML Feature Store for Personalization at ScaleAI SYSTEM DESIGN · STAFFView →
- 18Design a Multi-Region Strongly Consistent DatabaseSTAFFView →
- 19Design a Zero-Trust Security Architecture for an EnterpriseSTAFFView →
- 20Design a Recommendation SystemAI SYSTEM DESIGN · STAFFView →
- 21Design a Streaming Analytics PlatformSTAFFView →
- 22Design a Global Identity and Access Management SystemSTAFFView →
- 23Design a Logging and Monitoring SystemSTAFFView →
- 24Design a Distributed Job SchedulerSENIOR / STAFFView →
- 25Design a Real-Time Ad Click AggregatorSTAFFView →
- 26Design a Code Review SystemSTAFFView →
- 27Design a Search Autocomplete SystemSENIOR / STAFFView →
- 28Design Real-Time GPS TrackingSENIOR / STAFFView →
- 29Design a Ride Dispatch & Matching SystemSTAFFView →
- 30Design an LLM Inference Serving EngineAI SYSTEM DESIGN · STAFFView →
- 31Design Large-Scale Distributed LLM Training InfrastructureAI SYSTEM DESIGN · STAFFView →
- 32Design an AI Agent / Tool-Use Orchestration PlatformAI SYSTEM DESIGN · STAFFView →
- 33Design a Vector Search & Embedding Retrieval System at ScaleAI SYSTEM DESIGN · STAFFView →
- 34Design an LLM Content Safety & Moderation SystemAI SYSTEM DESIGN · STAFFView →
- 35Design an LLM Pretraining Data PipelineAI SYSTEM DESIGN · STAFFView →
- 36Design a Real-Time Payment Fraud & Risk Scoring SystemAI SYSTEM DESIGN · STAFFView →
- 37Design a Multi-Stage Short-Video Feed Ranking SystemAI SYSTEM DESIGN · STAFFView →
- 38Design a Visual Search System (Image-as-Query Retrieval)AI SYSTEM DESIGN · STAFFView →
- 39Design a Learned ETA Prediction ServiceAI SYSTEM DESIGN · STAFFView →
- 40Design a Fractional / Multi-Tenant GPU Sharing PlatformAI SYSTEM DESIGN · STAFFView →
- 41Design an Autonomous-Driving Data Engine (Active-Learning + Auto-Labeling Loop)AI SYSTEM DESIGN · STAFFView →
- 42Design an Ads Ranking System with Calibrated pCTR/pCVR and Delayed ConversionsAI SYSTEM DESIGN · STAFFView →
- 43Design a Real-Time Voice Assistant NLU Pipeline (Streaming ASR to NLU)AI SYSTEM DESIGN · STAFFView →
- 44Design a Surge / Dynamic Pricing System for a Two-Sided MarketplaceAI SYSTEM DESIGN · STAFFView →
- 45Design an Experimentation Platform with a Causal-Inference Stats EngineAI SYSTEM DESIGN · STAFFView →
- 46Design an On-Device / Edge ML SystemAI SYSTEM DESIGN · STAFFView →
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