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I will fix react, next js and node js web app bugs
Charaf Eddine M
About this gig
Is your React, Next.js, or Node.js web app throwing errors, failing during a workflow, or behaving unpredictably?
I debug and fix JavaScript/TypeScript applications across frontend, backend, APIs, authentication, databases, integrations, and deployment.
I can help with:
- React and Next.js rendering, state, routing, SSR, and hydration bugs
- Node.js and Express backend errors
- REST/API failures, 4xx/5xx errors, CORS, and broken requests
- Login, JWT, OAuth, session, and permission issues
- SQL, Supabase, query, connection, and data-flow problems
- Webhooks and third-party integrations
- Build, environment, Vercel/Render/Docker, and runtime issues
- Performance and reliability problems
My approach is simple: reproduce the issue, trace the root cause, implement a clean fix, and verify the affected workflow.
Scope is based on the agreed bug or workflow, not the number of error messages. Multiple symptoms from the same root cause are included. If I discover unrelated issues, I will document them and discuss the additional scope before making extra changes.
For unclear or cross-layer issues, message me before ordering so I can recommend the right package.
Get to know Charaf Eddine M
Charaf Eddine M
Full Stack Software Engineer
- FromMorocco
- Member sinceSep 2019
Languages
English, Arabic, French
I'm a software engineer and startup co-founder focused on building reliable SaaS products and solving complex application problems. I work across backend and full-stack development, APIs, databases, authentication, integrations, multi-tenant systems, and modern web apps.
I can help you build an MVP or AI-powered SaaS, develop or improve backend systems, integrate services, or diagnose and fix difficult bugs in existing applications.
I value clean architecture, security, maintainable code, clear scope, and software that works reliably in real-world use.
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FAQ
What types of applications can you debug?
I work primarily with existing React, Next.js, Node.js, Express, and JavaScript/TypeScript applications, including APIs, authentication flows, databases, integrations, and deployment issues. If your stack is unusual, message me with the details before ordering.
What counts as one issue?
One issue means one agreed bug, root cause, or affected workflow. Multiple error messages or symptoms caused by the same underlying problem are treated as the same issue. Independent bugs with separate root causes count as separate issues.
What happens if you find more problems?
If I discover unrelated issues while investigating the agreed bug, I will document them and let you know. I will not expand the scope or make unrelated changes without discussing them with you first.
Will you need access to my source code?
Usually yes. I may need the relevant source code, reproduction steps, logs, error messages, and environment details. For deployment or integration issues, temporary project access may also be required.
Are new features included?
No. This Gig is for debugging and repairing existing behavior. Small code changes required to restore the expected behavior are included, but new features, redesigns, major refactoring, or new integrations require a separate scope or custom offer.
