React-TypeScript Responsive Frontend Build

We are looking for an experienced Frontend Developer to build a modern, high-performance responsive website using React and TypeScript.
The website must work seamlessly across all devices — desktop, tablet, and mobile — and follow best practices for UI/UX, performance, and maintainability.

This project focuses on delivering a scalable, clean, and production-ready frontend that can later be extended into a mobile application if required.

My preferred styling stack is Tailwind CSS combined with HeadlessUI and shadcnUI components; if you see gaps or have performance-oriented tweaks within that ecosystem, I’m happy to discuss.

Two interaction patterns matter most to this release:
• robust form validation that surfaces errors instantly and accessibly, and
• real-time updates (think WebSocket or SSE hooks) so key UI elements refresh without a page reload.

Clean architecture is critical: modular folders, strict typing, sensible state management, and an eye on Lighthouse scores. The codebase should be easy to extend into a future React Native, so please avoid shortcuts that lock us into the browser.

Deliverables
1. Source code in a Git repo, organised and lint-clean.
2. Build scripts(docker, jenkins) plus environment configs for dev, staging, and production.
3. Code should be sonar compliance.
4. A brief walkthrough video or call demoing responsiveness, validations, and real-time flows.