Build modern interfaces with React and Next.js

What is React and Next.js?

React is the go-to library for building component-based user interfaces. Next.js the production framework is added: routing, Server Components, SSR/SSG, API routes, image optimization and deployment. Together they form the most in-demand frontend stack for professional web applications. At Q2BSTUDIO we form teams in React and Next.js with a practical, up-to-date and production-oriented approach.

The course covers the entire ecosystem: from React fundamentals (JSX, components, props, state, hooks, effects, context) to advanced Next.js patterns (App Router, layouts, Server Components, streaming, cached data fetching, middleware, API routes, and performance optimization). It's not a basic tutorial: it's training for writing maintainable production code.

We address the real challenges of professional teams: complex state management (when to use useState, useReducer, context, Zustand or server state), composition patterns (compound components, render props, HOCs when applicable), optimization of re-renders, forms with validation (React Hook Form, Zod), testing (Vitest, Testing Library) and accessibility in components.

The Next.js part focuses on the App Router and Server Components: how to think about server vs client components, when to use each, data fetching without waterfall, caching and revalidation, persistent layouts, error boundaries, loading states, metadata for SEO and deployment with Vercel or other platforms.

Each session is practical: participants build a progressively more complex application by applying each concept. The exercises are based on real production patterns (not trivial demos) and the code is reviewed as a group to share criteria and good practices.

The course is adapted to the level of the team: if they already know React but do not Next.js, the framework is deepened; if they are junior in React, fundamentals are reinforced before advancing. We deliver a repository of exercises, pattern guide and post-course follow-up.