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Javascript Developer (React)

Javascript Developer (React)

Hybrid

Manchester, United kingdom

£ 50,000 /year

Full Time

20-11-2025

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Skills

JavaScript Architecture react HTML5

Job Specifications

Your opportunity to make a difference!

One of our leading tech clients is embarking on a major front-end transformation, migrating their custom UI framework fully into React and we’re looking for a React Developer to help lead the journey.

Key Responsibilities:

Lead the migration of an existing custom UI framework to React.
Build scalable, high-performance components using modern React (Hooks, Context, etc).
Collaborate with product, UX, and backend teams to redesign and enhance UI/UX.
Integrate and manage real-time data using WebSocket APIs.
Ensure clean architecture, reusable components, and best-in-class front-end practices.

Do you have the right skills for the role?

Are you a React specialist who loves solving complex UI challenges? Do you thrive on migration projects and building modern, scalable front-end architectures from scratch?

Strong commercial React development experience.
Proven track record of UI framework migrations / front-end rebuilds.
Deep understanding of front-end architecture, component design, and state management.
Hands-on experience working with WebSockets and real-time data.
Excellent JavaScript (ES6+), HTML5, CSS3, and modern tooling (Webpack, Vite, etc).

Next steps

If you love:

Crafting clean, scalable components
Solving UI challenges
Migrating legacy front-ends to React
Working with WebSocket APIs and real-time applications

…then this is a role you’ll want to hear about!

About the Company

Here at MRJ We power startups, scaleups and global giants across the UK & Europe with great talent, enabling them to scale their technology & product teams, quickly. Why work with us? Three products. One result. We're more than just your average agency. What matters to you, matters to us and we tailor our solutions to fit with your hiring needs. Our Talent Partners live and breathe your brand, creating a genuine partnership with you. We replace the "us" and "them" divisions of traditional recruitment with a single, un... Know more