Technology · Front-end

React development

Design, build and scale your React solutions with an expert team.

We master React end to end: consulting, custom development, integration, code takeover and maintenance. Fixed-price or staff augmentation, white-label for agencies.

Get a quote React team

Nous concevons des interfaces React rapides, maintenables et accessibles — du SaaS au site à fort trafic.

FullDo & React

We treat React as a long-term investment: clear architecture, tested and documented code, knowledge transfer. No black box, no hidden debt.

Whether you start a project, take over an existing one or need a team boost, we adapt to your organisation — fixed-price to deliver, or staff augmentation to strengthen your team, white-label for agencies.

Custom React development. Apps, platforms and sites built around your real needs.
React integration & API. Connect to your systems, data, tools and partners.
React takeover & modernization. Audit, legacy takeover, upgrades and SLA-backed maintenance.
React staff augmentation. Experts embedded in your team, white-label.

Use cases

Where React makes the difference

Applications SaaS & dashboards

Interfaces temps réel, riches en données, qui restent fluides.

Sites à fort trafic

Composants réutilisables et performances Core Web Vitals.

Design systems React

Bibliothèques de composants cohérentes et testées.

Business benefits

What you gain

Écosystème mature et pérenne (Meta, large communauté)
Composants réutilisables qui accélèrent vos évolutions
SSR/SSG via Next.js pour le SEO et la vitesse
Tests (Jest, Testing Library) pour livrer sans régression

Project types

The React projects we deliver

SaaS & dashboards

Corporate websites

E-commerce

Business apps

API & integrations

Legacy takeover

Our method

From idea to production, and beyond

Scoping & consulting

We clarify your need, constraints and goals before writing a line of code.

Architecture & design

Stack choice, technical architecture, UX/UI and approved mockups.

Development

Short sprints, tested and reviewed code, regular demos and check-ins.

Testing & QA

Automated tests, UAT, performance, accessibility and security.

Go-live

Controlled CI/CD deployment, no downtime, no stress.

Maintenance & growth

Support and evolutions with a measured service-level commitment.

Why FullDo

Our React expertise

React est notre quotidien : nous structurons l'état, testons les composants et soignons l'accessibilité pour des apps qui durent.

120+

Projects delivered

40+

Experts available

98%

Client retention

48h

Response time

FAQ

React ou Next.js pour mon projet ?

Next.js est un framework bâti sur React : on le choisit dès qu'on a besoin de SEO, de rendu serveur (SSR) ou de génération statique (SSG). Pour une app interne sans enjeu SEO, React seul suffit.

Pouvez-vous reprendre une application React existante ?

Oui. Nous auditons le code, sécurisons les dépendances, ajoutons des tests et reprenons les évolutions, en marque blanche si besoin.

React est-il adapté au SEO ?

Oui, à condition d'un rendu serveur ou statique (Next.js). Nous mettons en place le SSR/SSG et le balisage nécessaire.

Do you work fixed-price or staff augmentation?

Both: we deliver end to end, or embed experts in your team, white-label for agencies.

Do you work remotely?

Yes, remotely or on-site, in France and worldwide.

Front-end

Other technologies

Next.js Vue.js Angular Tailwind CSS

Let's talk

A React project? Get your quote

Describe your need in a few lines: we reply within 48h with a first proposal and estimate.