NextAge React development team

Company specialized in React

NextAge builds React applications with dedicated end-to-end teams. Since 2007, we have developed proprietary methodologies that reduce rework by up to 90%.

+19 years of experience
+600 companies served
+150 professionals
+13 countries

What does a React development company deliver?

See the types of projects NextAge delivers with a dedicated squad, fixed scope and guaranteed SLA. Understand when React is the most solid technical choice for your roadmap.

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NextAge React specialist
Single Page Applications (SPAs)

React is the leading library for single-page applications with instant navigation and complex state. NextAge structures state management, routing and component architecture from the first sprint, avoiding the technical debt that stalls product evolution in year two.

Technologies: React 19, React Router, Redux Toolkit, Zustand, TanStack Query, Vite

Admin panels and data dashboards

Interfaces that need to render large volumes of data without losing performance require fine-grained rendering control. NextAge delivers panels with list virtualization, real-time updates and visualizations that support operational decisions.

Technologies: TanStack Table, Recharts, D3.js, WebSockets, React Virtual, Material UI

Server-rendered web applications (SSR/SSG)

When load performance and organic indexing are business requirements, React alone is not enough. NextAge implements SSR and static generation with Next.js, delivering Core Web Vitals in the green range and pages ready for traditional search and AI retrieval.

Technologies: Next.js, React Server Components, Vercel, ISR, streaming SSR

Design Systems and component libraries

Companies with multiple products lose speed when every team rebuilds the same interface. NextAge builds versioned, documented design systems that standardize the experience and shorten the delivery time of new screens in every cycle.

Technologies: Storybook, Radix UI, Tailwind CSS, shadcn/ui, Figma Tokens

Mobile applications with React Native

The same team and the same knowledge base serve web and mobile. NextAge builds iOS and Android apps with shared code, store publishing and a controlled update cycle, without maintaining two separate teams.

Technologies: React Native, Expo, React Navigation, Reanimated, CodePush

Migration of legacy front-ends to React

Interfaces in AngularJS, jQuery or old React versions stall hiring and delivery speed. NextAge performs incremental migration by routes or modules, keeping the system in production throughout the transition, with controlled risk and full predictability.

Technologies: micro front-ends, Module Federation, strangler pattern, TypeScript, automated regression tests

Back-end integration and API consumption

The quality of an interface depends on how it talks to the server. NextAge implements typed data layers, smart caching and handling of loading and error states, eliminating the inconsistency that generates support tickets.

Technologies: TanStack Query, Apollo GraphQL, tRPC, OpenAPI TypeScript, Zod

… and whatever else it takes for your digital transformation to happen now.

NextAge + React solutions

Proprietary methodologies and specialized services to maximize results in your React projects

Staff Augmentation

Allocation of specialist React teams. Unlike traditional outsourcing, you get senior front-end developers, front-end architects, tech leads and QAs, all managed by us. We guarantee continuous code review, strict typing with TypeScript and consistent component architecture standards.

Choose it to scale React teams without the risks of traditional staffing

Java.NET / C#JavaScriptTypeScriptPythonRubyPHPGoKotlinSwift
Spring BootDjangoFlaskFastAPIRuby on RailsLaravelReact.jsAngularVue.jsNode.js
NextAge specialist ready to talk about your React project

Get the best React developers on your project

Hundreds of React projects delivered

We have a solid React portfolio. Everything you need for software at the highest technical and strategic level.

Mockup of the system built for Senff
Senff

NextAge developed improvements and new features in React and C# for Senff's enterprise management system, restructuring queue-based processing routines and enabling the system's production deployment.

Services: Staff Augmentation

Want results like these in your company?

What sets our React developers apart?

→ The differentials that made NextAge the number 1 choice of market leaders

Validated professionals

Our team is rigorously trained and validated before joining the project. You work with professionals who have already solved complex problems similar to yours.

Learning curve

Unlike traditional staffing, our teams are actively managed by us. Tech leads monitor developer performance and alignment with your goals, accelerating the learning curve.

Quality and testing culture

AI-powered automated testing, code review and CI/CD are part of our DNA. We deliver tested, production-ready code, reducing bugs and rework.

More agility

We adopt truly agile methodologies. Well-planned sprints, incremental deliveries and transparent communication. You follow progress in real time.

Knowledge as a foundation

Our React developers master the complete front-end ecosystem: TypeScript, Next.js, state management, automated UI testing, performance and accessibility. We deliver sustainable front-end architecture.

Cultural alignment

Our teams understand the context and culture of companies. Clear communication, productive meetings and natural alignment with technical and business stakeholders.

// ABOUT
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Why NextAge?

Learn our story →

Founded in 2007, NextAge was born to make software development more disruptive, human, and effective.

Innovation has always been at our core. We revolutionized the technology market with Staff Augmentation, our exclusive methodology that brings up to 40% more productivity to teams.

And we didn't stop there! We went further with NextFlow AI, a new way of developing that combines AI and human expertise in every line of code.

Today, we are the partner that transforms complexity into clarity and accelerates your operation with the best talent.

NextAge office

Learn more

Want to understand more about how NextAge can help your business? Explore articles from our blog, testimonials from our clients and our other services to carry out your digital transformation in the best way.

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Questions and answers

What does a React specialist company deliver beyond interface development?
NextAge delivers component architecture, state management, API integration, automated UI testing, performance optimization and Core Web Vitals, all with a dedicated squad, sprint-by-sprint documentation and a guaranteed SLA.
What is the difference between hiring a freelance React developer and a managed squad?
A freelancer delivers code. A squad managed by NextAge delivers predictability: a tech lead, continuous code review, defined architecture standards and quality metrics every sprint. The IT manager keeps full visibility without having to manage the team.
How does migrating a legacy front-end to React work?
NextAge performs incremental migration by routes or modules, keeping the system in production throughout the transition. The approach eliminates the risk of operational downtime and guarantees timeline and scope predictability at every phase.
When should you use React with SSR (Next.js) instead of a pure SPA?
SSR is recommended when initial load performance, search engine indexing and Core Web Vitals are requirements. A pure SPA is enough for internal systems, dashboards and authenticated applications where SEO is not a critical factor.
How do you manage global state in large-scale React applications?
It depends on the nature of the state. Server state is best managed with TanStack Query or Apollo. Global UI state with Zustand or Redux Toolkit. Mixing the two in the same manager is the most common mistake in applications that scale.
How do you structure a React component architecture that is sustainable in the long run?
The most consistent approach separates components by responsibility: UI primitives, domain components and pages. Versioned design systems with Storybook and monorepos with Turborepo solve the consistency problem in products with multiple fronts.
How do you guarantee performance in long lists with React?
Virtualization. Libraries such as TanStack Virtual render only the items visible in the viewport, regardless of the total list size. Combined with selective memoization and paginated loading, it solves most rendering bottlenecks in dashboards and data tables.
What is the best testing strategy for React applications?
The recommended pyramid: unit tests of pure logic with Vitest, component tests with Testing Library focused on user behavior, and end-to-end tests with Playwright for critical flows. Testing implementation instead of behavior is the mistake that makes the suite fragile.
How do you migrate a plain JavaScript React application to TypeScript?
The safest migration is incremental: enable TypeScript in the project, convert files module by module starting with the data and utility layers, and use any as a temporary escape hatch only where necessary. Migrating everything at once in production projects creates regressions that are hard to trace.
How do you handle micro front-ends in React?
Module Federation with Webpack or Vite lets different teams develop and deploy parts of the interface independently. The cost is real: configuration overhead, versioning of contracts between modules and orchestration complexity. Micro front-ends solve an organizational problem, not a technical one.

Have a React project to get off the ground? NextAge guarantees delivery