Skip to content
NerdLevelTech
IntermediatePremium · 500 credits

Frontend Engineer Interviews: React, System Design & Web Performance Mastery

Prepare for frontend engineering interviews at Meta, Google, Amazon and other large tech companies. Work through JavaScript and TypeScript internals, React rendering and hooks, frontend system design, Core Web Vitals, accessibility to WCAG 2.2, behavioural rounds, and offer negotiation. Four graded labs: an async engine simulator, a searchable data table, a real-time notification system, and a Core Web Vitals audit.

171 min18 lessons6 modulesCareer

What you'll learn

  • Explain JavaScript engine internals including the event loop, closures, and prototypal inheritance
  • Solve React-specific interview problems covering hooks, state management, and rendering optimization
  • Design frontend system architectures for complex applications (design a chat UI, autocomplete, data table)
  • Optimize Core Web Vitals (LCP, CLS, INP) and diagnose performance bottlenecks
  • Navigate behavioral rounds and negotiate competitive frontend compensation packages

What's included

Video Lessons
—
Interactive Exercises
Included
Charts & Infographics
Included
Quizzes
6
Certificate
Included

Course Content

  1. The Frontend Interview Landscape

    3 lessons · 11 min

  2. JavaScript & TypeScript Mastery

    3 lessons · 13 min
    • Locked until you enrollJavaScript Engine Internals5 min
    • Locked until you enrollTypeScript Interview Patterns4 min
    • Locked until you enrollAsync Patterns & Error Handling4 min
    • Quiz: Module 2: JavaScript & TypeScript Mastery
    • Lab: JavaScript Engine Simulator3 free attempts20 min

  3. React & Modern Frontend Frameworks

    3 lessons · 14 min
    • Locked until you enrollReact Internals & Reconciliation5 min
    • Locked until you enrollHooks Deep Dive & State Management5 min
    • Locked until you enrollServer Components & Next.js Architecture4 min
    • Quiz: Module 3: React & Modern Frontend Frameworks
    • Lab: Build a Searchable Data Table3 free attempts25 min

  4. Frontend System Design

    3 lessons · 14 min
    • Locked until you enrollThe RADIO Framework for Frontend System Design5 min
    • Locked until you enrollClassic Frontend System Design Problems5 min
    • Locked until you enrollComponent Library & Design System Architecture4 min
    • Quiz: Module 4: Frontend System Design
    • Lab: Design a Real-Time Notification System3 free attempts25 min

  5. Web Performance & Accessibility

    3 lessons · 13 min
    • Locked until you enrollCore Web Vitals Deep Dive5 min
    • Locked until you enrollAdvanced Performance Patterns4 min
    • Locked until you enrollAccessibility Standards & Testing4 min
    • Quiz: Module 5: Web Performance & Accessibility
    • Lab: Performance Audit & Fix3 free attempts25 min

  6. Behavioral Rounds & Negotiation

    3 lessons · 11 min
    • Locked until you enrollFrontend-Specific Behavioral Questions4 min
    • Locked until you enrollTechnical Communication & Whiteboarding3 min
    • Locked until you enrollSalary Negotiation & Career Growth4 min
    • Quiz: Module 6: Behavioral Rounds & Negotiation