Frontend Web Developer
- Optum
- 4 - 7 years
- Bengaluru
- 6 months ago
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Job Description
Role & responsibilities
Core Frontend Technologies
- JavaScript (ES6+) - Modern JavaScript syntax and features
- TypeScript - Static typing for JavaScript
- HTML5 - Semantic markup and accessibility
- CSS3 - Modern styling including Grid, Flexbox
- Responsive Design - Mobile-first, cross-browser compatibility
- Progressive Web Apps (PWA) - Service workers, offline functionality
React Ecosystem
- React - Component-based UI library
- React Hooks - useState, useEffect, useContext, custom hooks
- React Router - Client-side routing
- Redux/Redux Toolkit - State management
- Context API - Built-in state management
- JSX - JavaScript XML syntax
- React Testing Library - Component testing
- Next.js - Full-stack React framework
- Gatsby - Static site generator
- React Native - Mobile development
Tailwind CSS & Styling
- Tailwind CSS - Utility-first CSS framework
- PostCSS - CSS processing tool
- Styled Components - CSS-in-JS library
- Emotion - CSS-in-JS library
- SASS/SCSS - CSS preprocessor
- CSS Modules - Scoped CSS
- Design Systems - Component libraries, style guides
Advanced Frontend Concepts
- Server-Side Rendering (SSR) - SEO optimization
- Static Site Generation (SSG) - Pre-built pages
- Code Splitting - Bundle optimization
- Lazy Loading - Performance optimization
- Web Performance - Core Web Vitals, optimization
- Accessibility (a11y) - WCAG compliance, screen readers
- Micro-frontends - Modular architecture
- WebAssembly (WASM) - High-performance web applications
Build Tools & Development
- Webpack - Module bundler
- Vite - Fast build tool
- Babel - JavaScript compiler
- ESLint - Code linting
- Prettier - Code formatting
- npm/yarn/pnpm - Package managers
- Husky - Git hooks
- Module Federation - Micro-frontend architecture
Testing & Quality Assurance
- Jest - JavaScript testing framework
- Cypress - End-to-end testing
- Playwright - Cross-browser testing
- Storybook - Component development environment
- Unit Testing - Component testing
- Integration Testing - Feature testing
- Test-Driven Development (TDD) - Development methodology
Version Control & Collaboration
- Git - Version control
- GitHub/GitLab - Code repositories
- Pull Requests - Code review process
- Branching Strategies - Git flow, feature branches
- CI/CD - Continuous integration/deployment
API & Data Management
- REST APIs - HTTP methods, status codes
- GraphQL - Query language for APIs
- Apollo Client - GraphQL client
- React Query/TanStack Query - Data fetching
- Axios - HTTP client
- WebSockets - Real-time communication
- JSON - Data interchange format
Performance & Optimization
- Core Web Vitals - LCP, FID, CLS metrics
- Bundle Analysis - Webpack bundle analyzer
- Tree Shaking - Dead code elimination
- Image Optimization - WebP, lazy loading
- Caching Strategies - Browser, service worker caching
- Critical Rendering Path - Performance optimization
Modern Development Practices
- Component-Driven Development - Reusable components
- Atomic Design - Design methodology
- Agile/Scrum - Development methodologies
- Cross-Browser Testing - Browser compatibility
- Mobile-First Design - Responsive development
- SEO Optimization - Search engine optimization
Emerging Technologies
- Web Components - Custom elements
- Jamstack - Modern web architecture
- Headless CMS - Content management
- Edge Computing - CDN optimization
- WebRTC - Real-time communication
- Web3/Blockchain - Decentralized applications
Preferred candidate profile
Job Classification
Industry: Analytics / KPO / ResearchFunctional Area / Department: Engineering - Hardware & NetworksRole Category: IT NetworkRole: IT Network - OtherEmployement Type: Full timeContact Details:
Company: OptumLocation(s): Bengaluru+ View Contact
Keyskills: CSS Typescript Javascript react HTML Front End SQL
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