System Design
Master frontend system design interviews with structured approaches, real-world examples, and the RADIO framework. Learn how to architect scalable frontend systems and communicate your design decisions effectively.
What You'll Learn
RADIO Framework
Requirements, Architecture, Data Model, Implementation, Optimization - structured approach to system design
Architecture Patterns
Component design, state management, rendering strategies, and system architecture
Trade-offs Analysis
Understanding performance vs complexity, scalability decisions, and technical trade-offs
Real-World Examples
News feeds, autocomplete, collaborative editors, and other production systems
Performance Optimization
Caching strategies, virtual scrolling, code splitting, and scalability techniques
Interview Skills
Communicating design decisions, handling ambiguity, and structured problem-solving
How to Use This Section
Structured Learning
Start with the guidebook to understand the RADIO framework and system design principles. Then explore trade-offs to understand decision-making in different scenarios.
Practice Problems
Work through real-world system design problems with detailed solutions. Each problem demonstrates how to apply the RADIO framework and make informed architectural decisions.
Interview Preparation
Learn the thinking process used by senior engineers. Master how to approach ambiguous problems, communicate trade-offs, and structure your solutions effectively.
Why System Design Matters
System design interviews are open-ended discussions where you work with the interviewer to design scalable systems. These interviews are crucial for:
- ✓ Demonstrating architectural thinking and problem-solving skills
- ✓ Showing your ability to handle ambiguity and make trade-offs
- ✓ Communicating technical decisions effectively
- ✓ Understanding scalability, performance, and system constraints
- ✓ Proving you can design production-ready frontend systems
- ✓ Landing senior and staff engineering roles
Getting Started
Browse through the sections in the sidebar to find topics that interest you. Each problem includes:
- ✓ Clear problem statement and requirements
- ✓ Step-by-step solution using RADIO framework
- ✓ Architecture diagrams and component design
- ✓ Trade-off analysis and optimization strategies
- ✓ Real-world examples and best practices
Start with the Guidebook to learn the framework, explore Trade-offsto understand decision-making, or jump directly to Questions to see solutions in action.