Senior Frontend React Engineer

Responsibilities: Develop and maintain customer-facing features across E! Online. Help execute the React 16 → React 18.3 → React 19 modernization roadmap. Upgrade React-facing dependencies, including Apollo Client, Helmet, intersection observers, and UI libraries. Maintain server-side rendering and browser hydration behavior. Diagnose and resolve hydration mismatches, rendering failures, race conditions, and browser-specific issues. Build regression coverage for critical routes and user journey…