Job Description

UI Architect

6 months + contract or Perm

London - Hybrid (4 days per week from office)

Up to £600pd Inside IR35

UI Architect – React JS & Java Spring Boot Ecosystem

We are seeking a highly skilled UI Architect with deep expertise in React JS and strong backend exposure to Java Spring Boot microservices, to lead the design and delivery of scalable, high-performance, and user-centric enterprise applications.

The ideal candidate will bring a strategic architectural mindset, combined with hands-on experience in crafting modern, responsive front-end platforms and seamlessly integrating them with RESTful APIs and microservices-based back-end systems. You will be responsible for defining and governing UI architecture standards, ensuring consistency, scalability, and optimal performance across applications.

A distinguishing requirement of this role is proven, hands-on experience leveraging AI-assisted coding tools — such as Claude Code, Cursor AI, or GitHub Copilot — in real-world production environments. This reflects our commitment to adopting AI-driven development practices to accelerate delivery, enhance developer productivity, and improve overall code quality.

Key Responsibilities

* Define and drive the UI architecture strategy for enterprise-grade applications using React JS and modern JavaScript frameworks.

* Establish best practices, design patterns, and coding standards for front-end development.

* Architect scalable solutions that integrate seamlessly with Java Spring Boot microservices and RESTful APIs.

* Lead the design of reusable UI components, design systems, and front-end frameworks to ensure consistency and maintainability.

* Collaborate closely with backend architects, product teams, and UX designers across the full software development lifecycle.

* Leverage AI-assisted development tools to optimize development workflows, improve code quality, and accelerate feature delivery.

* Ensure applications are optimized for performance, scalability, accessibility, and security.

* Guide teams in implementing robust CI/CD pipelines aligned with modern DevOps practices.

* Oversee containerization (Docker) and deployment strategies using Kubernetes (K8s) within AWS or hybrid cloud environments.

* Drive adoption of monitoring, logging, and observability practices for UI and integrated services.

* Mentor and provide technical leadership to front-end engineers and developers across teams.

Required Skills & Experience

* Strong expertise in React JS, including state management, performance optimization, and component-driven architecture.

* Solid understanding of Java Spring Boot microservices architecture and API integration patterns.

* Experience in micro-frontend architectures.

* Familiarity with modern front-end build tools and frameworks.

* Extensive experience in designing enterprise UI architectures for large-scale applications.

* Proven experience with AI-assisted coding tools (GitHub Copilot, Cursor AI, Claude Code, etc.) in production environments.

* Strong knowledge of RESTful APIs, asynchronous communication, and client-server interaction patterns.

* Experience implementing Design Systems and reusable component libraries.

* Proficiency in Docker, Kubernetes (K8s), and AWS cloud environments.

* Hands-on experience with CI/CD pipelines and DevOps practices.

* Deep understanding of web performance optimization, security, and accessibility standards.

* Excellent problem-solving skills and ability to drive architectural decisions.

* Strong passion for continuous learning and adopting emerging technologies, especially in the AI-assisted development space.

* Ability to balance technical leadership with hands-on contribution