A comprehensive, interview-ready reference for SDE2 frontend system design interviews.

1. The RADIO Framework

• Requirements Exploration

A structured weekend checklist for mastering large-scale UI system design interviews. Focus: Think in systems, not just code.

1. How to Structure Your Answer

1. The Four Layers at a Glance
2. Bundle Optimization
3. Asset Optimization
   • Images
   • Fonts
   • Video
4. Network Optimization
5. Rendering & Runtime Performance

In React and frontend system design interviews, rendering strategy means how HTML is generated and delivered to the browser. Choosing the right strategy directly impacts SEO, performance, interactivity, and cost.

1. Quick Reference
2. Client Side Rendering (CSR)

A comprehensive guide to the BFF architectural pattern — what it is, why it exists, and how companies like Netflix use it to power multi-device experiences at scale.

1. What is the BFF Pattern?
2. The Problem BFF Solves

1. Network & Delivery
2. JavaScript Performance
3. React-Specific Optimizations
4. CSS & Rendering
5. Images & Media

A structured interview reference guide covering scalability, asset optimization, and performance — organized by topic with theory, code snippets, and polished answer templates.

1. What "Scalability" Means in Frontend
2. Scalability Dimensions

1. Climbing Stairs
2. Fibonacci Number
3. N-th Tribonacci Number
4. Min Cost Climbing Stairs
5. House Robber

A deep dive into how Spring manages object creation, dependency injection, singleton guarantees, and circular dependency resolution — without any magic hand-waving.

1. Normal Java — No Spring
2. The Spring Way — Manual Beans, No @Autowired

• Array
  • Two Sum
  • Best Time to Buy and Sell Stock
  • Contains Duplicate
  • Product of Array Except Self
• Maximum Subarray