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Web Development

React & Next.js Development

A rich front end where it earns its cost.

React is the right tool for interfaces with real client-side complexity: editors, builders, canvases, live dashboards and anything collaborative. Next.js adds routing and per-route rendering, so a single application can serve static marketing pages, server-rendered application pages and fully client-side tools without compromising any of them.

We build with both, and we are deliberate about where. Shipping a large JavaScript bundle to render a list and a form is a real cost paid by every visitor on every load, and it is paid most heavily by people on mid-range phones and poor connections.

So the decision is made per section rather than per project: rich client where the product needs it, server-rendered where it does not.

The problem

What this solves

The common failure is adopting a client-side framework as the default and then paying for it everywhere. Slow first paint, a bundle that grows with every feature, duplicated validation between client and server, and a permanent maintenance obligation to an ecosystem that moves quickly.

The opposite failure is real too: building a genuinely interactive tool out of full-page requests, producing something that technically works and feels broken to use.

  • Client-side by default

    A large bundle shipped to render pages the server could have sent complete.

  • Validation written twice

    Client and server rules drift apart, so the two disagree about what is valid.

  • Rendering strategy by accident

    Nobody decided whether a route is static or dynamic, so caching behaves unpredictably.

  • Bundle growth unmonitored

    Every feature adds weight and nobody notices until the site is slow on real devices.

Our approach

How we go about it

We start by identifying which parts of the product actually hold state in the browser. That is usually a minority of the screens, and it is where React belongs. The rest — content, listings, forms, settings — is faster and simpler server-rendered.

Where Next.js is used, rendering strategy is chosen per route explicitly and written down, because the difference between static, server-rendered and client-rendered is invisible in the code and very visible in the behaviour.

Everything is TypeScript, validation rules are shared between client and server rather than written twice, and bundle size is treated as a budget with a number rather than as something to look at later.

Capabilities

What is included

  • React application architecture and state management

  • Next.js server rendering and static generation

  • Design system and component library development

  • API integration and data-fetching strategy

  • Bundle analysis and load-time optimisation

  • Component and end-to-end testing

Outcomes

What changes for you

  • Rich client only where needed

    The interactive parts get React; the rest stays fast and simple.

  • One set of validation rules

    Shared between client and server so they cannot disagree.

  • Rendering decided per route

    Static, server-rendered or client-side chosen deliberately and documented.

  • A performance budget

    Bundle size measured against a number, on mid-range hardware rather than a developer machine.

Frequently asked questions

Common questions about react & next.js development.

Should our whole site be a React application?
Usually not. Content pages, listings and straightforward forms are faster server-rendered and cost nothing to maintain. React earns its place in the parts with genuine client-side state. Applying it everywhere is a decision most teams regret about eighteen months in, when the bundle is large and the payoff is limited to two screens.
What about SEO?
Server-rendered or statically generated pages are indexed normally, which is a strong reason to use Next.js rather than a purely client-rendered application for anything public. Content that only exists after JavaScript runs is at best indexed unreliably, and it is not a risk worth taking on pages that need to be found.
Can you work alongside our existing React team?
Yes. That usually means agreeing conventions and component boundaries up front so the codebase does not develop two dialects. Where a design system already exists we build within it rather than alongside it.
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Which parts of your product actually need a rich client?

Usually fewer than expected. Getting that boundary right is most of the performance work.

Where we work

582 cities across 19 countries.

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