React/Next.js Bug Fix & Maintenance

What this service delivers

I’ll diagnose and fix bugs in your React or Next.js application — including rendering issues, state inconsistencies, API integration failures, hydration errors, and performance bottlenecks. Work includes thorough testing (unit & integration where applicable), clean code updates, documentation of changes, and deployment-ready pull requests. You’ll receive fully functional, production-safe code with clear commit messages and optional brief handover notes. All fixes follow modern React best practices (React 18+, hooks, concurrent features) and Next.js conventions (App Router, server components, ISR/SSR logic). No feature development or UI redesign unless explicitly scoped separately.

What you need to provide

Access to source code (GitHub/GitLab repo or ZIP), reproduction steps for the bug(s), and environment details (Next.js version, deployment platform, error logs or screenshots).

React

Next.js

TypeScript

JavaScript

Git

RA

REST API