Front End Developer

Front End Engineer
Rate: -500 -579
Clearance Required:BPSS
Duration:6 months
Location:Telford 2 days onsite
Job Description:

Front End Developer (React) to join the CORE Mod. team in Tax Admin. Experienced developer needed with experience working with a UI/UX Design lead and developing in JavaScript React.
Minimum requirements

• Strong frontend fundamentals: semantic HTML, modern CSS and JavaScript, including responsive and accessible development.
• Commercial experience with React and TypeScript.
• Experience with a modern full-stack React framework, specifically Remix or React Router v7+.
• Practical server-side rendering experience, including loaders/actions, forms, routing, error handling and server-side session patterns.
• A clear understanding of progressive enhancement and the ability to build core journeys that do not depend entirely on client-side JavaScript.
• Experience using Material UI to build reusable, accessible components.
• Experience writing automated tests, including unit/integration tests and Playwright end-to-end tests.
• Comfortable integrating with REST APIs and working with Git-based development and code-review processes.
• Accessibility to WCAG 2.2 AA, including semantic HTML, keyboard navigation, screen-reader testing and automated accessibility checks.

Ideal additional experience

• React Router framework mode, including data APIs, nested routes, form actions and streaming SSR.
• Node.js and Express, particularly where the frontend includes a server or backend-for-frontend layer.
• Design-system and component-library development using custom design patterns, encompassing MUI, Storybook and Figma.
• Runtime validation and contract-first API integration, for example Zod and OpenAPI-generated types.
• Authentication, authorisation and secure session management using OAuth 2.0/OpenID Connect.
• CI/CD, dependency management and frontend security practices.
• Experience working in regulated or government environments and collaborating closely with various stakeholders, including UX, API, test and platform teams.

Additional Notes
This is potentially up to a 12-month assignment and the applicant must be able to attend Telford (@Phoenix) 2 days a week minimum.

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