NEXT.JS & REACT DEVELOPMENT.

React front-ends that score 95+ on Core Web Vitals and survive a pentest. A Next.js development agency for SaaS dashboards, headless storefronts and marketing sites that need to rank.

► Get a Fixed-Price Estimate Pricing & FAQ
Overview

Next.js & React Development by Evosec Consulting

Next.js is how we ship front-ends that are both fast and indexable: server components, streaming, ISR for content, edge middleware for auth and personalisation. Evosec has built Next.js applications for SaaS products, marketplaces, fintech dashboards and high-traffic marketing sites in France and the United States.

We pair it with Laravel or Node.js APIs, TypeScript end-to-end, and a design-system approach (Tailwind + Radix/shadcn) so your product looks consistent at page 1 and page 100.

What's Included
▌ 01

SaaS dashboards & web apps

App Router, server actions, optimistic UI, real-time updates — complex product UIs that stay maintainable.

▌ 02

Headless front-ends

Next.js on top of Shopify, Sanity, Strapi, WordPress or a custom Laravel API.

▌ 03

Marketing sites that rank

Static + ISR pages, structured data, image/font optimisation, 95+ Lighthouse — engineered for SEO from day one.

▌ 04

Design systems

Tailwind CSS, Radix/shadcn, Storybook — accessible components your team can reuse.

▌ 05

Auth & security

NextAuth/Auth.js or your IdP, CSP headers, SSRF-safe server actions, dependency audits, and a front-end pentest before launch.

▌ 06

Deployment

Vercel or AWS, preview environments per PR, edge caching, monitoring and error tracking.

Stack & Tools
Next.js 15React 19TypeScriptTailwind CSSshadcn/uiAuth.jsVercelPlaywright
Secure by Design
  • Threat model written during discovery
  • Static analysis & dependency audit on every commit
  • Manual penetration test before every release
  • Findings fixed by the engineers who wrote the code
  • GDPR / RGPD privacy-by-design review
  • Fixed-price milestones · weekly demos · staging from day one
FAQ
Next.js or plain React (Vite)?

Next.js when SEO, performance or server rendering matters — almost always for customer-facing products. Vite + React for purely internal tools behind a login.

Can you rebuild our front-end without touching the backend?

Yes. We regularly put a Next.js front-end on an existing Laravel, Django, Rails or .NET API.

How do you keep Next.js apps secure?

Strict CSP, server-only secrets, validated server actions, dependency scanning in CI and a manual pentest of the release candidate by our security team.

Do you provide ongoing front-end engineers?

Yes — senior React/Next.js engineers on retainer, CET hours with US East Coast overlap.

Related
SaaS & MVP Development → E-commerce Development → React Native Development →
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