React

React & Next.js development

React and Next.js development for product interfaces that have to keep working as they grow—clear component boundaries, a deliberate line between server and client, and performance treated as a requirement rather than a later optimisation.

Interfaces that stay fast as the application and the team grow.

Application architecture

Component and data boundaries chosen so that a change in one part of the product does not ripple through the rest.

Next.js App Router work

Server and client components, routing, caching and metadata—used for what each is actually good at.

Design system implementation

Turning a design system into components that hold their rules, so the interface stays consistent without policing.

Performance and accessibility

Measured rendering and bundle work, with accessibility built into components rather than audited at the end.

When it fits

  • The application works, and every new feature now takes longer than the last.
  • The design system exists in Figma and nowhere in the code.
  • The interface is slow, and nobody is sure which part.
  • A prototype needs to become something a team can maintain.

How it is built

  • The server/client boundary drawn on purpose, so data fetching and secrets stay on the server.
  • Typed props and typed data at the edges, so a rename is a compile error rather than a runtime one.
  • Components accessible by construction: focus handling, roles and keyboard behaviour built in.
  • Tests on the behaviour that matters, with the browser-level paths covered end to end.

Not this

  • Pixel-matching a static mockup with no design system behind it
  • Framework migrations with no problem to solve
  • Component libraries built before there is a product to use them

React or Next.js?

Next.js when the product needs routing, server rendering and data fetching as part of the framework. Plain React when it is a view layer inside something that already handles those.

Can you work from our existing design system?

Yes, and that is usually the better outcome. Implementing an existing system is faster than inventing one and leaves your team with something they already recognise.

Can you improve an app without rewriting it?

Usually. A rewrite is occasionally the honest answer, but it is the last option rather than the first, and it should be argued for rather than assumed.

Take the session when the work still needs scoping. Send the brief when you already know what needs building.

A clear next step

Start with the decision in front of you.

Get preliminary direction first, or book a focused session when the question is ready.