GenAI Frontend Engineer: React UI/UX Specialist

CAPGEMINI SINGAPORE PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Capgemini Singapore Pte. Ltd. is seeking an experienced UI/UX Engineer with strong React frontend skills to work directly with business units and design, build, and deploy intuitive applications on our GenAI platform.

In this forward-deployed role, you will translate findings into prototypes and production-quality React interfaces while collaborating with design, product, and backend teams to deliver robust user experiences.

Qualifications

• 5+ years of frontend engineering or UX engineering
• Strong React and modern JavaScript/TypeScript skills
• Proficiency with Figma or similar design tools
• Ability to translate user needs into production-ready interfaces

Responsibilities

• User Discovery & Workflow Design: Work directly with business users to understand goals, tasks, pain points, operating constraints, and current workflows. Translate findings into personas, journey maps, information architecture, user flows, and clear product requirements.
• Prototyping & User Validation: Create wireframes, high-fidelity designs, and interactive prototypes using tools such as Figma or coded prototypes. Facilitate usability testing, synthesise feedback, and iterate rapidly before and during implementation.
• React Frontend Engineering: Build responsive, maintainable, and production-quality web applications using React, Next.js, TypeScript, HTML, and CSS. Implement reusable components, robust state management, client-side validation, error handling, and automated tests.
• AI Interaction Design: Design interfaces for conversational, generative, and agentic experiences, including streaming responses, tool execution, progress and system status, citations, user confirmation, human review, error recovery, and clear handling of uncertainty.
• Design Systems & Accessibility: Apply and extend reusable design patterns, component libraries, and design tokens. Ensure solutions are consistent, responsive, inclusive, and aligned with applicable accessibility standards.
• Backend & Platform Integration: Collaborate closely with AI and backend engineers to shape API contracts and integrate frontend applications with authentication, databases, enterprise systems, and platform services. Build lightweight backend functionality when required.
• Quality, Performance & Security: Optimise usability, responsiveness, rendering performance, and reliability; implement unit, integration, end-to-end, and accessibility testing; and apply secure frontend practices for sensitive data and regulated environments.
• Deployment, Adoption & Handover: Own frontend delivery through production rollout, documentation, user onboarding, feedback collection, support, and knowledge transfer. Use qualitative and quantitative signals to improve user adoption and task completion.
• Field-to-Platform Feedback: Identify recurring user needs and reusable interface patterns, and feed them back into shared components and improvements to the core platform.]
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Skills

React

TypeScript

Frontend engineering

Usability testing

Tools

Figma

Next.js

HTML/CSS

JavaScript

API integration

Job description

Capgemini Singapore Pte. Ltd. is seeking an experienced UI/UX Engineer with strong React frontend skills to work directly with business units and design, build, and deploy intuitive applications on our GenAI platform.

In this forward-deployed role, you will translate findings into prototypes and production-quality React interfaces while collaborating with design, product, and backend teams to deliver robust user experiences.