Scalable UI Architecture
Ace your principal frontend engineer scalable UI architecture interview with our AI-powered real-time coach. Get instant guidance on component design, state management, performance optimization, and frontend architecture patterns.
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Interviewer [00:00:05]: Design a scalable frontend architecture for an enterprise application that will be used by thousands of users across multiple teams, with different permission levels and customization needs.
You [00:00:15]: I'd like to start by understanding the requirements better. What are the key features and workflows? What's the expected scale in terms of codebase size and team structure? Are there any specific performance or accessibility requirements? And what's the expected lifespan of the application?
Interviewer [00:00:28]: Good questions. It's a data analytics platform with dashboards, reports, and configuration tools. We expect 50+ developers across 10 teams to work on it. The codebase will likely grow to 500K+ lines of code. We need sub-second interactions and WCAG AA compliance. The platform should evolve over 5+ years.
AI Suggestion:
- Architecture Approach:
- Propose a micro-frontend architecture with module federation
- Suggest monorepo structure with clear boundaries between teams
- Recommend component-driven development with a design system
- Discuss feature flags for progressive rollout and A/B testing
- Technical Stack:
- Suggest React with TypeScript for type safety at scale
- Recommend state management approach (Redux Toolkit + React Query)
- Discuss build system (Vite/Webpack) with code splitting
- Mention testing strategy (unit, integration, E2E with Playwright)
- Performance Optimization:
- Explain code splitting and lazy loading strategies
- Discuss virtualization for large data sets
- Suggest memoization and rendering optimization techniques
- Recommend performance budgets and monitoring
- Scalability Patterns:
- Discuss component composition patterns
- Explain state management architecture (global vs. local)
- Suggest API abstraction layer with caching
- Recommend modular CSS approach (CSS Modules/Styled Components)
- Developer Experience:
- Suggest documentation strategy (Storybook + MDX)
- Discuss CI/CD pipeline for frontend
- Recommend code quality tools (ESLint, Prettier, Husky)
- Mention developer onboarding and knowledge sharing
- Accessibility & Internationalization:
- Discuss accessibility implementation strategy
- Suggest i18n approach with dynamic loading
🏗️ Frontend Architecture Design
Get expert guidance on designing scalable frontend architectures, including micro-frontends, monorepos, module federation, and strategies for organizing large-scale UI codebases.
⚡ Component Design Systems
Receive instant recommendations on creating robust component design systems, including component composition patterns, API design principles, and approaches for building maintainable UI libraries.
🔄 State Management Strategies
Access real-time guidance on implementing scalable state management solutions, including global vs. local state, data fetching strategies, and patterns for managing complex application state.
🔍 Performance Optimization
Get instant suggestions for optimizing frontend performance, including code splitting, lazy loading, rendering optimization, and techniques for handling large datasets with minimal performance impact.
🔒 Frontend Security Patterns
Receive guidance on implementing secure frontend architectures, including authentication flows, authorization checks, CSRF protection, and strategies for preventing common frontend vulnerabilities.
📈 Scalability & Team Collaboration
Access expert advice on scaling frontend development across multiple teams, including code ownership models, collaboration patterns, and approaches for maintaining consistency in large organizations.
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