Front End Developer

Experis; Old Warren; On-site; GBP 70,000 - 100,000; Full time

Job summary

Experis is seeking a Senior Frontend Developer to own a modern React and TypeScript platform. You will shape its future, influence architecture, engineering standards and developer experience for a global customer base.

Work closely with Product, Design and Engineering to deliver high-impact features, reusable components, performance improvements, and scalable frontend patterns across the stack.

Qualifications

• Experience with React 18+ and TypeScript.
• Strong design & code quality mindset.

Responsibilities

• Design, build, and maintain a React 18+ and TypeScript application.
• Own and evolve Vite-based development and build tooling.
• Create reusable frontend architecture patterns and components.
• Deliver accessible, responsive user interfaces using Ant Design and SCSS.
• Integrate with AWS Amplify, AppSync and GraphQL services.
• Drive frontend performance, reliability and maintainability.
• Write robust unit and integration tests with Vitest and Testing Library.
• Review code, contribute to standards and technical governance.
• Collaborate cross-functionally with Product, Design and Engineering.

Job description

Senior Frontend Developer

About the Role

We're looking for a Senior Frontend Developer to take ownership of a modern React and TypeScript platform and play a key role in shaping its future.

This is an opportunity to have real influence over architecture, engineering standards, developer experience, and the quality of the product.

You'll design and deliver high-impact features, champion modern frontend practices, and help create intuitive, accessible experiences used by customers around the world.

Working closely with Product, Design, and Engineering teams, you'll drive improvements across the frontend stack, from reusable component design and application architecture to testing, performance optimisation, build tooling, and cloud integrations. You'll be trusted to make sound technical decisions, challenge existing approaches, and raise the bar for frontend excellence.

What You'll Do

• Design, build, and maintain high-quality features in a React 18+ and TypeScript application.


• Own and evolve Vite-based development and build tooling.


• Create reusable, scalable components and frontend architecture patterns.


• Deliver accessible, responsive user experiences using Ant Design and SCSS.


• Integrate with AWS Amplify, AppSync, and GraphQL services.


• Drive frontend performance, reliability, and maintainability improvements.


• Implement and maintain internationalisation (i18n) capabilities.


• Write robust unit and integration tests using Vitest, Testing Library, and MSW.


• Contribute to code quality standards, engineering best practices, and technical governance.


• Participate in code reviews, architectural discussions, and technical decision-making.


• Help manage dependencies, security updates, and technical debt reduction.


• Collaborate cross-functionally to deliver polished, production-ready solutions.


• Continuously improve developer experience, shared tooling, and frontend workflows.

If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website