UI Component Library

Production
Senior Software Development EngineerMarch 2021 - December 2022Team: 4-6 developers

Created a comprehensive component library and design system that became the foundation for multiple enterprise applications. The library ensures consistency across products while providing developers with well-documented, accessible, and highly customizable components that accelerate development cycles.

UI Component Library cover image

Technologies Used

ReactTypeScriptStorybookMaterial UISassJestEnzymeRollupnpm

Key Achievements

  • Adopted by 5+ enterprise applications across the organization
  • Reduced development time for new features by an average of 40%
  • Achieved 100% accessibility compliance across all components

Key Features

50+ reusable React components with TypeScript support
Comprehensive Storybook documentation with interactive examples
Full accessibility compliance (WCAG 2.1 AA standards)
Flexible theming system with CSS variables and Sass mixins
Cross-platform compatibility (web, mobile web, electron)
Automated testing suite with 100% component coverage
npm package distribution with semantic versioning
Design tokens integration for consistent spacing and colors
Icon library with 200+ custom SVG icons
Form validation and data handling utilities

Challenges

  • Ensuring component consistency across multiple development teams
  • Maintaining backward compatibility while adding new features
  • Implementing comprehensive accessibility features without complexity
  • Creating documentation that serves both designers and developers
  • Managing component dependencies and avoiding bloat

Solutions

  • 💡Established clear contribution guidelines and review processes
  • 💡Implemented semantic versioning with automated changelog generation
  • 💡Created accessibility testing tools and guidelines for all components
  • 💡Developed interactive Storybook with usage examples and guidelines
  • 💡Used tree-shaking and modular architecture to minimize bundle size

Achievements & Impact

🏆Adopted by 5+ enterprise applications across the organization
🏆Reduced development time for new features by an average of 40%
🏆Achieved 100% accessibility compliance across all components
🏆Maintained 99%+ component test coverage throughout development
🏆Received positive feedback from both design and development teams

Lessons Learned

  • 💭The importance of involving both designers and developers in component design
  • 💭How proper documentation can significantly impact adoption rates
  • 💭The value of automated testing in maintaining component quality
  • 💭How to balance flexibility with consistency in component design
UI Component Library - Project Details | Saurabh Londhe - Software Engineer