Snr Front End Developer

Senior Front End Developer

Location: Milton Keynes

We are looking for an experienced Senior Front End Developer to take ownership of our front-end codebase and play a key role in developing high-quality, accessible and high-performing digital products.

You will work closely with Product Managers, Designers and Back-End Developers to deliver new features, improve existing components and help shape front-end development standards. You will also take ownership of the front-end build pipeline, performance optimisation and our design system.

Key Responsibilities

Take ownership of the front-end codebase, including maintaining, refactoring and extending UI components.

Develop pixel-perfect, accessible and responsive user interfaces from design specifications.

Lead front-end build and deployment processes, including build configuration and production optimisation.

Champion accessibility, working to WCAG 2.1 AA standards.

Ensure cross-browser and cross-device compatibility.

Develop and maintain automated component and end-to-end tests using appropriate testing tools.

Conduct peer code reviews and help improve development standards and component architecture.

Collaborate with back-end developers on API integration and data-fetching approaches.

Monitor and optimise front-end performance, including Core Web Vitals, bundle size, lazy loading and rendering.

Contribute to the ongoing development and maintenance of the product's design system and component library.

Work with an external development team during a structured knowledge transfer period, ensuring a smooth transition of technical knowledge and ownership.

Technical Stack

TypeScript

React

React Router

Next.js

Apollo Client

Node.js 22

MSAL

CSS Modules

Axios

Styled Components

React Hook Form & Yup

Component and end-to-end testing tools such as Jest, Testing Library and Playwright

About You

You will be a proactive and experienced front-end developer who enjoys solving complex technical challenges and improving the quality of digital products. You will have a strong eye for detail and be passionate about creating accessible, performant and intuitive user experiences.

You should be confident making technical decisions, challenging existing approaches where appropriate, and communicating effectively with technical and non-technical stakeholders.

Key Skills & Experience

Strong commercial experience in Senior Front End Development.

Excellent hands-on experience with TypeScript and React.

Experience working with Next.js, React Router and Apollo Client.

Strong understanding of component architecture and state management.

Experience with Node.js, ideally Node.js 22.

Experience with authentication technologies such as MSAL.

Strong knowledge of CSS Modules and Styled Components.

Experience working with Axios and API integrations.

Experience building robust forms using React Hook Form and Yup.

Experience with automated component and end-to-end testing.

Good understanding of web accessibility and WCAG 2.1 AA.

Experience optimising web performance and Core Web Vitals.

Strong knowledge of responsive design and cross-browser compatibility.

A strong understanding of clean code, code reviews and modern development best practices.

This is an excellent opportunity for a Senior Front End Developer to take genuine ownership of a key codebase, influence technical standards and help shape the future of a growing digital product in Milton Keynes