Senior Frontend Architect (React / Next.js)

Genixbit; Greater London; Hybrid; GBP 110,000 - 150,000; Full time

Job summary

Genixbit in London is seeking a Senior Frontend Architect to lead the frontend architecture of our global SaaS web apps and enterprise dashboards. You will drive high-performance rendering, design system components, and state management across teams, mentoring engineers while shaping implementation choices around Next.js, React, TS, and Tailwind CSS.

The role emphasizes accessible UI, performance optimization, and collaboration with product and backend teams in a fast-moving, London-based

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-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

Skills

React

TypeScript

Next.js

Tailwind CSS

Zustand

SSR/ISR

Job description

Senior Frontend Architect (React / Next.js)

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