React guide
What to know before you hire a React development company
The questions founders ask us before they sign a React project, answered for React specifically - where it fits, where it does not, and what the build really involves.
What does a React development company actually deliver?
React itself is only a UI library. It draws components and nothing else, so every React project needs someone to choose routing, data fetching, state, the build tool and whether pages render on the server. Those choices, more than the components, decide how the product ages.
At Miracuves the defaults are Vite and React Router for SPAs and admin panels, Next.js when public pages must rank, TanStack Query for API data, Zustand for UI state, and Tailwind CSS with shadcn/ui for the component layer. You receive the repository, a typed API client, CI with preview deploys, production hosting and the documentation to run it. Ask any React agency which of these it picks by default and why.
When is React the right choice, and when is it not?
React is strongest where the screen does a lot of work while the user stays on it: dashboards with filters and live data, admin panels, customer portals and anything behind a login. Its component model also carries over to React Native if a phone app follows.
- Choose React for data-heavy dashboards, internal tools, SaaS products and marketplace vendor portals.
- Skip it for a mostly static marketing site - a CMS such as WordPress or Webflow costs less to run and edit.
- Skip it if you only need a few interactive pieces on an existing server-rendered site.
- Stay with Vue or Angular if your in-house team already maintains one of them.
Will a React website rank on Google and in AI search?
A client-rendered React SPA sends the browser a nearly empty HTML page and builds the content with JavaScript. Google can render that, but it does so in a later pass, and several AI crawlers read only the raw HTML without running JavaScript - so content that exists only after rendering can be missed.
That is why Miracuves splits the work: screens behind a login stay a Vite SPA, where SEO does not matter, and public pages such as pricing, listings and articles are server-rendered or statically generated with Next.js so the full text is in the first response. React 19 can also render title and meta tags from inside components, which keeps per-page metadata next to the page it describes.
Should you hire React developers or a React development company?
Hiring React developers directly works when you already have a tech lead who can set the architecture, review every pull request and own QA and deployment. Without that person, freelancers tend to make the choices above independently, and the codebase drifts.
A development company carries that responsibility for you. At Miracuves you contract with the company rather than with individual developers: a React engineer, a backend engineer, QA and a project manager work to a written scope with weekly sprint demos. For continuing work, the Ongoing React Development retainer from $2,299/month assigns a dedicated team instead of billing hours. Miracuves does not rent individual developers by the hour.
What makes a React project cost more, and what does it cost to run?
In React builds the budget moves with a few specific things: large data tables that need virtualized scrolling, dashboards that update live over WebSockets, fine-grained role-based access, a design system built from scratch instead of on shadcn/ui, and each third-party integration. SSR through Next.js adds build and testing work as well.
Running cost depends on the rendering choice. A Vite SPA compiles to static files that can be served from a CDN for very little. A Next.js app that renders on the server needs a Node.js runtime or a platform such as Vercel, which becomes an ongoing line in your hosting bill. Miracuves states which one your product needs in the quote.
How do you keep a React app fast as it grows?
Most slow React apps are slow for the same reasons: every route ships in one bundle, and a change at the top of the tree re-renders hundreds of components below it. Miracuves works on both from the first sprint.
- Route-level code splitting with React.lazy, so users download only the screen they open.
- Virtualized tables for long lists, so a 10,000-row table renders only the rows on screen.
- Memoization where the React DevTools Profiler shows wasted renders, or the React Compiler where the codebase supports it.
- Bundle budgets in CI and Lighthouse checks on Core Web Vitals, including Interaction to Next Paint.
Can Miracuves take over or modernize an existing React codebase?
Yes, and much of our React work starts that way. Common jobs are moving an app off Create React App, which the React team deprecated in 2025, onto Vite; converting class components to hooks; replacing hand-written Redux data fetching with TanStack Query; adding TypeScript file by file; and upgrading to React 19.
We begin with a written audit of the repository - dependencies, bundle size, state management, test coverage and security issues such as secrets in the client bundle - and then quote the migration in stages, so the product keeps shipping while the code underneath is modernized.
