UI Engineer (embedded in domain)

Randstad Technologies Recruitment; City Of London; Remote; GBP 83,000 - 124,000; Full time

Job summary

Randstad Technologies Recruitment is seeking a UI Engineer (Embedded Domain) in London. The role focuses on building user-facing screens in a shared React shell and migrating legacy front ends without downtime.

You’ll work on the C2C Finance Companion AI suite, enhancing contract booking, billing, and collections. We expect 3-5+ years of React/TypeScript, experience with Tailwind CSS and Apollo GraphQL, and familiarity with modern testing tools.

Qualifications

• 3-5+ years building production apps with React and TypeScript.
• Experience with Tailwind CSS, headless UI libraries (Radix UI or shadcn/ui), and Apollo Client (GraphQL).
• Modern testing and build tooling: Vitest, Testing Library, Playwright, and Vite.
• Experience with enterprise browser auth via Microsoft Entra ID (MSAL).

Responsibilities

• Build production-grade domain screens and AI chat interfaces (streaming responses, confirmation flows, error handling).
• Migrate existing standalone front ends into the centralized shell and decommission legacy versions.
• Consume and upstream shared UI components using design tokens.
• Partner with Go engineers to integrate GraphQL queries and real-time subscriptions.
• Ensure UI quality through automated testing, WCAG 2.1 AA accessibility, and web vitals optimization.

Skills

React

TypeScript

WCAG 2.1 AA

AI UI design

Tools

Tailwind CSS

Radix UI

shadcn/ui

Apollo Client

GraphQL

Vitest

Testing Library

Playwright

Vite

MSAL

Job description

• Role: UI Engineer (Embedded Domain)
• Type: 6-Month Contract (Inside IR35)
• Location: London, UK (Remote)

Role Overview: Join the team building the C2C Finance Companion, an AI suite assisting finance teams with contract booking, billing, and collections. Embedded in a dedicated squad, you will build user-facing screens in a shared React shell and migrate legacy front ends without downtime.

Key Responsibilities

• Build production-grade domain screens and AI chat interfaces (streaming responses, confirmation flows, error handling).
• Migrate existing standalone front ends into the centralized shell and decommission legacy versions.
• Consume and upstream shared UI components using design tokens.
• Partner with Go engineers to integrate GraphQL queries and real-time subscriptions.
• Ensure UI quality through automated testing, WCAG 2.1 AA accessibility, and web vitals optimization.

Requirements

• 3-5+ years building production apps with React and TypeScript.
• Experience with Tailwind CSS, headless UI libraries (Radix UI or shadcn/ui), and Apollo Client (GraphQL).
• Modern testing and build tooling: Vitest, Testing Library, Playwright, and Vite.
• Experience with enterprise browser auth via Microsoft Entra ID (MSAL).

Nice to Have

• Front-end consolidation or micro-frontend migrations.
• AI/conversational UI design.
• Data-dense dashboards (tables, queues, approval flows).
• Finance, ERP, or order-to-cash domain exposure.