System Design Foundations
Master the architectural principles needed to transition from coding basics to building robust, high-traffic SaaS platforms. You will bridge the gap between business requirements and scalable technical execution. * **Scalable architecture patterns** for high-traffic SaaS applications * **Database sharding and replication** for data consistency * **Load balancing strategies** to ensure high availability * **Microservices communication** using REST and message queues
11 sections ยท 52 lessons
Course outline
Scaling Fundamentals
- Server-Database Separation
- Scaling with Caching Layers
- Load Balancers & Stateless
- Caching & CDNs
- Power of Two
- Latency & Storage
- Scaling Fundamentals
Interview Framework
- Clarify Requirements
- Strategic Constraints for Focused Design
- Mastering Constraint Ledgers
- Mastering Functional and Non-Functional Requirements
- Design & Deep Dive
- System Capacity and Ballpark Estimates
- System Architecture Diagramming Conventions
- Interview Framework
Traffic Management
- Token Bucket Algorithm
- Scalable Token Bucket Implementation
- Lazy Bucket Refill Implementation
- Window-Based Rate Limiting
- Scalable Sliding Window Rate Limiting
- Load Balancing Algorithms
- Load Balancing for Mobile Clients
- Traffic Management
Data Distribution
- Consistent Hashing
- Virtual Nodes
- Database Replication
- Database Sharding
- Data Cardinality and Distribution Strategies
- Distributed Transactions with the Saga Pattern
- Scalable System Architecture Synthesis
- Data Distribution
Storage Systems
- SQL vs NoSQL
- Application vs. Database Layer Safeguards
- Mastering Column-Family Databases
- Document Store Database Mechanisms
- Key-Value Stores
- Vector Clocks for Conflict Resolution
- CAP Theorem
- Distributed ID Generation
- Storage Systems
Caching
- Cache-Aside & Read-Through
- Write-Through & Write-Behind
Common Patterns
- URL Shortener Design
- Web Crawler Politeness
- Multi-Channel Notifications
- News Feed Fan-Out
Real-Time Communication
- WebSocket Chat
- Chat Storage & Groups
- Autocomplete Trie
Media Systems
- Video Upload & Transcoding
- Adaptive Bitrate Streaming
- File Chunking & Sync
- Metadata & Conflicts
Asynchronous Processing
- Message Queue Benefits
- Delivery Guarantees & DLQs
Architecture Patterns
- Stateless Architecture Principles
- When Stateful Works