zoho_recruit
Front End Developer (React.js)
CustomerLabs
Chennai, IND
Full-time
Senior · 5+ years experience
Onsite
Discovered 3 weeks ago
ReactJavaScriptHTML5CSS3Web APIs
Free
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ReactJavaScriptHTML5
Key Skills for This Role
ReactJavaScriptHTML5CSS3Web APIs
Full Job Posting
- Build product-grade UI : Develop reusable UI components and frontend features using JavaScript (ES6+), React, HTML5, and CSS3.
- Own responsive design : Deliver pixel-perfect, mobile-first experiences across breakpoints and devices.
- Ensure cross-browser compatibility : Make features work consistently across Chrome, Safari, Firefox, Edge (including real-device quirks).
- Performance optimization : Improve loading, rendering, and runtime performance using profiling tools and best practices (code splitting, memoization, caching, optimizing assets).
- Ship with testing confidence : Write unit/component tests and automated browser tests (E2E) to prevent regressions and improve release velocity.
- Master browser debugging : Diagnose UI issues using DevTools (network, performance, memory, layout/rendering) and fix problems at the root.
- Deliver strong Core Web Vitals : Monitor and improve LCP, INP, CLS and build performance budgets into day-to-day decisions.
- Work deeply with Web APIs : Use browser capabilities effectively (and safely) using Web APIs.
- Build Progressive Web App features : Offline-ready experiences, caching strategies, installability, service workers, and resilient UX patterns.
- Collaborate cross-functionally : Work closely with Product, Design, and Backend to translate requirements into scalable frontend systems.
- Build scalable component systems and maintain clean frontend architecture.
- Write maintainable code with clear abstractions and well-defined component APIs.
- Collaborate on design systems and UI consistency patterns.
- Profile and optimize React rendering, bundle size, and runtime performance.
- Improve Core Web Vitals and prevent regressions through measurement and guardrails.
- Ensure stable behavior under real-world conditions (slow networks/devices).
- Implement responsive layouts and robust UI states (loading/empty/error).
- Validate cross-browser behavior and handle compatibility issues proactively.
- Implement unit/component tests and browser automation tests.
- Participate in code reviews and uphold engineering standards and best practices.
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