Do you build with React alone or with Next.js?

We use Next.js (React meta-framework) for most projects because it adds server-side rendering, static generation, file-based routing, and built-in optimisations. For pure client-side SPAs where SSR is not needed, we use Vite + React.

What state management libraries do you use with React?

We select state management based on project complexity: Zustand for most applications (lightweight and predictable), Redux Toolkit for large teams with complex global state, and React Query / TanStack Query for server state management.

How do you ensure React application performance?

We enforce Lighthouse performance budgets, implement code splitting at route and feature level, use React.memo and useMemo/useCallback judiciously, virtualise long lists, and optimise bundle size with tree shaking and dynamic imports.

Can you migrate our existing application to React?

Yes. We have extensive experience migrating jQuery, Angular 1.x, and Vue 2 applications to React, using a strangler fig pattern to migrate section by section without big-bang rewrites.

Do your React developers write tests?

Yes, always. Testing is non-negotiable. We write unit tests with Jest, component tests with React Testing Library, and E2E tests with Playwright. Typical coverage targets are 80%+ for business logic.

Technology · React.js Development

React Development Services

Senior React developers building production-grade web applications, dashboards, and SPAs with React 19, TypeScript, and modern architecture patterns.

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What We Deliver

React powers over 40% of the world's most successful web applications, and InfinityStack's senior React developers have shipped dozens of production React applications for startups and enterprises. We build component-driven, performant, and maintainable React applications — from complex single-page apps to large-scale React frontends integrated with microservice backends.

React 19 with Concurrent Features and Server Components
TypeScript-first development for type safety and refactoring confidence
Storybook component library and design system development
Performance optimisation — sub-2s LCP on all applications
Comprehensive Jest and React Testing Library test coverage
Accessible (WCAG 2.1 AA) React components as standard

Services & Capabilities

React SPA Development

Complex single-page applications with sophisticated state management, real-time data, and highly interactive user interfaces.

React Component Libraries

Reusable, documented, and tested component libraries built with Storybook — the foundation of your design system.

React Performance Optimisation

Code splitting, lazy loading, memoisation, virtual scrolling, and bundle optimisation to achieve sub-2s load times.

React Dashboard Development

Data-rich admin dashboards, analytics platforms, and operational tools with complex state, charts, and real-time updates.

React Migration & Refactoring

Migrate legacy jQuery, AngularJS, or Vue applications to modern React with zero business disruption.

React Testing

Jest unit tests, React Testing Library integration tests, and Playwright E2E tests — full test coverage on all delivered code.

How We Work

Architecture Design

We design your React component architecture, state management strategy, and API integration pattern before writing code.

Component System

Core design system and component library established first — ensuring visual consistency and development speed throughout the project.

Feature Development

Sprint-by-sprint feature delivery with live Storybook previews and Vercel deployment previews for every PR.

Performance Audit

Lighthouse performance audit after every major feature — we maintain sub-2s LCP as a non-negotiable standard.

Testing & QA

Comprehensive test suite covering unit, integration, and E2E scenarios before any code reaches production.

Handoff & Documentation

Full Storybook docs, architecture decision records, and runbooks so your team can maintain and extend the application.

Technologies We Use

React 19TypeScriptNext.jsZustand / ReduxReact QueryTailwind CSSStorybookJest / RTL / Playwright

Frequently Asked Questions

Related Services

Next.js Development Node.js Development Web Development UI/UX Design SaaS Development

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