Senior Frontend Architect (React / Next.js)

GenixBit Labs Pvt. Ltd.; Greater London; Hybrid; GBP 90,000 - 150,000; Full time

Job summary

GenixBit Labs Pvt. Ltd. is seeking a Senior Frontend Architect to lead the frontend architecture of our global SaaS web apps and enterprise dashboards, driving high-performance rendering and a cohesive design system.

You will architect micro-frontends with React and Next.js, maintain Tailwind CSS and Radix UI components, optimize Core Web Vitals, and mentor developers through rigorous code reviews and quality gates.

Qualifications

• 5+ years of production experience with React, TypeScript and modern JS build tools.
• Expertise in Next.js App Router, Tailwind CSS, Zustand, and SSR/ISR strategies.

Responsibilities

• Architect micro-frontends using React 19, Next.js, and TypeScript.
• Maintain and expand Tailwind CSS & Radix UI design system.
• Optimize Core Web Vitals (LCP, INP, CLS) and real-time WebSocket state streaming.
• Mentor frontend developers and enforce code quality gates.

Skills

Frontend architecture

Senior frontend

Tools

React

TypeScript

Next.js

Tailwind CSS

Zustand

SSR/ISR

Web performance

Job description

Senior Frontend Architect (React / Next.js)

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About the Role

Lead the frontend architecture of our global SaaS web apps and enterprise dashboards. Drive high-performance rendering, design system component libraries, and glassmorphic UI state management.

Key Responsibilities

• Architect micro-frontend architectures using React 19, Next.js, and TypeScript
• Maintain and expand our core Tailwind CSS & Radix UI accessible design system
• Optimize Core Web Vitals (LCP, INP, CLS) and real-time WebSocket state streaming
• Mentor frontend developers and establish strict code review quality gates

Requirements

• 5+ years of production experience with React, TypeScript, and modern JS build tools
• Expertise in Next.js App Router, Tailwind CSS, Zustand, and SSR/ISR strategies