Advanced Masterclass
System Design Interview Mastery
System Design Interview Mastery is a guided sequence designed to build your understanding step by step.
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107 Lessons
Production-Ready
Not just theory. Learn the patterns used at companies like Google, Meta, and Uber.
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Course Curriculum
4. Distributed Theory
7 Lessons01System Design Module 8: CAP Theorem & Consistency Models
6 min read
02System Design Module 10: API Design & Rate Limiting
7 min read
03API Rate Limiting at Scale: Redis-Based Strategies
7 min read
04Microservices Are Overrated for Most Startups
4 min read
05Building Production Observability with OpenTelemetry and Grafana Stack
3 min read
06System Design: Building an Authorization Service
3 min read
07Designing for 99.999% Availability: The Five Nines Blueprint
8 min read
3. Storage & Data
4 Lessons01System Design Module 6: Database Design (SQL vs NoSQL)
5 min read
02Database Scaling Part 2: Partitioning vs. Sharding
4 min read
03Database Sharding Part 3: The Shard Key Blueprint
7 min read
04System Design: Designing a Distributed BLOB Store (like S3/GCS)
7 min read
Bonus Content
1 Lessons01Bonus: The Ultimate System Design Cheatsheet
7 min read
0. The Master Roadmap
1 Lessons01Complete System Design Interview Preparation Roadmap
5 min read
Case Studies (Master-tier)
12 Lessons01Case Study: Design Instagram (Photo Sharing)
7 min read
02Case Study: Design a Notification System
7 min read
03System Design: Designing a Distributed Search Engine (Elasticsearch)
5 min read
04System Design: Designing a Global Distributed Rate Limiter
3 min read
05System Design: Designing a Distributed Logging System (TB/Day Scale)
8 min read
06System Design: Building an API Gateway Platform
3 min read
07System Design: Designing Google Drive (Distributed File Storage)
5 min read
08System Design: Designing a Real-time Recommendation Engine (TikTok / Netflix)
4 min read
09System Design: Designing a Real-Time Analytics Dashboard
8 min read
10System Design: Building a Fraud Detection Platform
3 min read
11Multi-Tenancy in NoSQL: Data Isolation Strategies for SaaS
5 min read
12System Design: Building a Feature Flag Platform
3 min read
1. Core Fundamentals
1 Lessons01System Design Module 2: The Interview Framework (PEDAL)
7 min read
2. Scalability & Traffic
1 Lessons01Cache Invalidation Patterns: TTL, Write-Through, Cache-Aside, and Event-Driven Eviction
8 min read
Architecture Patterns
80 Lessons01Pagination at Scale: Keyset vs Offset
8 min read
02Cloud-Native Databases: Why the Log is the Database
8 min read
03Distributed Data Observability: Metrics That Actually Matter
8 min read
04Distributed Deadlock Detection: Wait-For-Graphs
7 min read
05Graceful Degradation: Feature Shedding
7 min read
06gRPC Schema Evolution: Avoiding Breaking Changes
7 min read
07Beyond CAP: The PACELC Theorem for Distributed Databases
8 min read
08The Saga Pattern: Managing Distributed Transactions in NoSQL
8 min read
09Stateless Auth: Managing JWT Blacklisting at Scale
7 min read
10System Design: Designing an Ad Click Aggregator
8 min read
11System Design: Designing Airbnb (Hotel/Home Booking)
8 min read
12System Design: Designing a Collaborative Editor (Google Docs)
8 min read
13System Design: Designing a Content Delivery Network (CDN)
8 min read
14System Design: Designing a Content Moderation System (Meta/TikTok Scale)
8 min read
15System Design: Data Partitioning and Sharding Strategies
8 min read
16System Design: Designing a Database Proxy for Sharding (Vitess Style)
8 min read
17System Design: Designing a Digital Wallet and Ledger System
8 min read
18System Design: Designing a Distributed File Lock (Zookeeper/Curator)
7 min read
19System Design: Designing a Distributed File System (HDFS/GCS Style)
8 min read
20System Design: Designing a Local-First Key-Value Store (LevelDB/RocksDB)
7 min read
21System Design: Designing a Distributed Lock Manager
8 min read
22System Design: Distributed Transactions (2PC and 3PC)
8 min read
23System Design: Managing Distributed Transactions with the Saga Pattern
8 min read
24System Design: Designing an E-commerce Checkout System
8 min read
25System Design: Designing a Food Delivery App (Uber Eats / DoorDash)
8 min read
26System Design: Designing a Real-time Gaming Leaderboard (Massive Scale)
8 min read
27System Design: Designing Google Maps (Navigation and ETA)
8 min read
28System Design: Designing a Scalable GraphQL API Gateway
8 min read
29System Design: Designing a Distributed ID Generation Service
6 min read
30System Design: Designing a Metrics Monitoring and Alerting System
8 min read
31System Design: Multi-Leader Database Replication
7 min read
32System Design: Designing Nearby Friends (Real-time Geospatial Streams)
8 min read
33System Design: Designing an Object Store (Amazon S3 Internals)
8 min read
34System Design: Designing an Online Auction System (eBay Scale)
8 min read
35System Design: Designing an Online Judge (LeetCode/HackerRank)
8 min read
36System Design: Designing a Proximity Service (Yelp/Google Maps)
8 min read
37System Design: Designing an Event Mesh (Pub/Sub at Global Scale)
8 min read
38System Design: Designing a Pub/Sub Messaging Platform
8 min read
39System Design: Designing a Real-time Bidding (RTB) Ad System
8 min read
40The Shadow Database Pattern
7 min read
41System Design: Designing a Stock Trading Platform and Matching Engine
8 min read
42Project Case Study: Designing Stripe’s Ledger System
8 min read
43System Design: Designing Ticketmaster (High-Concurrency Booking)
8 min read
44System Design: Designing Twitter (Timeline and News Feed)
8 min read
45System Design: Designing a Web Crawler at Google Scale
8 min read
46System Design: Designing a Video Conferencing System (Zoom / MS Teams)
8 min read
47WebSocket Fleet Management: Handling Millions of Connections
7 min read
48System Design: Building a Distributed Tracing Platform
12 min read
49System Design: Building a Service Discovery Platform
12 min read
50System Design: Building a Session Management Platform
12 min read
51System Design: Building a Workflow Orchestration Platform
13 min read
52System Design: Building a Distributed Configuration Platform
13 min read
53System Design: Building an Inventory Reservation System
17 min read
54System Design: Building a Payment Reconciliation Engine
17 min read
55System Design: Building a Search Indexing Platform
12 min read
56System Design: Building a Data Export Platform
13 min read
57System Design: Building an Email Delivery Platform
11 min read
58System Design: Building a File Upload Platform
11 min read
59System Design: Building a Distributed Job Scheduler
12 min read
60System Design: Building a Metrics Platform Like Prometheus
11 min read
61System Design: Building a Secrets Management Platform
15 min read
62System Design: Building a Usage Metering and Billing Platform
10 min read
63System Design: Building a Webhook Delivery Platform
12 min read
64Idempotency Keys in APIs: Retries, Duplicate Requests, and Exactly-Once Illusions
8 min read
65Multi-Region Architecture: Active-Active, Active-Passive, and Consistency Trade-Offs
7 min read
66System Design: Building an Audit Log System for Compliance and Debugging
6 min read
67Transactional Outbox Pattern: Reliable Event Publishing Without Dual Writes
9 min read
68gRPC vs REST vs GraphQL: Choosing the Right API Protocol
8 min read
69Multi-Tenancy Architecture: Database, Application, and Infrastructure Patterns
10 min read
70Designing a Retry System Without Causing a Retry Storm
12 min read
71Feature Flags and Progressive Delivery: Safe Releases at Scale
9 min read
72Designing a High-Throughput Notification System for 100K Events per Second
11 min read
73WebSocket and SSE for Real-Time Systems: Architecture and Production Patterns
9 min read
74Designing Idempotent Payment Systems in Distributed Architecture
13 min read
75Service Mesh with Istio: mTLS, Traffic Management, and Observability
14 min read
76System Design: Video Streaming Platform at Netflix Scale
13 min read
77System Design: Real-Time Chat Application at Scale
13 min read
78API Design: REST vs GraphQL vs gRPC — When to Use Each
8 min read
79Microservices Patterns: Circuit Breaker, Retry, Bulkhead, and Saga
16 min read
80System Design: Search Autocomplete at Google Scale
13 min read
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