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I will fix firebase auth, firestore security rules and backend issues in react or next
Toni
About this gig
Is your Firebase Authentication failing? Are your Firestore security rules blocking users? Is your React or Next.js app showing backend errors?
Im Toni, a professional web developer with 5+ years of experience fixing and improving modern web applications. I specialize in Firebase Auth, Firestore, Firebase security rules, Firebase backend issues, React, and Next.js.
I dont just apply quick patches. I investigate the root cause, fix the issue properly, and help make your application more reliable and secure.
What I Offer?
- Firebase Authentication fixes
- Firestore security rules fixes
- Firebase backend troubleshooting
- Login, signup & OAuth issues
- Firestore permission errors
- React & Next.js Firebase issues
- Firebase configuration fixes
- Debugging and error resolution
Why Choose Me?
- 5+ years of development experience
- Clean and reliable solutions
- Root-cause focused debugging
- Clear communication
- Professional and responsive service
If your Firebase setup is giving you problems, message me before placing your order and tell me whats happening. Ill review your issue and help you choose the right package.
Get to know Toni
Toni
fix Firebase auth, Firestore security rules and backend
- FromUnited Kingdom
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Spanish, German, Italian
Hi, I’m Toni, a professional web developer with 5+ years of experience building, debugging, and improving modern web applications. I specialize in Firebase Authentication, Firestore security rules, backend issues, React, and Next.js. I don’t just patch problems I find the root cause and deliver clean, reliable solutions. If your Firebase setup is failing, insecure, or simply not working as expected, message me today and let’s get it fixed properly.
FAQ
Can you fix Firebase Authentication issues?
Yes. I can troubleshoot login, signup, logout, OAuth, Google authentication, redirect, session, and related Firebase Authentication problems.
Can you fix Firestore security rules?
Yes. I can review and fix Firestore security rules, permission-denied errors, access problems, and rules that are incorrectly allowing or blocking users.
Do you work with React?
Yes. I can troubleshoot Firebase issues inside React applications, including authentication, Firestore, configuration, and backend-related problems.
Do you work with Next.js?
Yes. I can fix Firebase issues in Next.js applications, including authentication, Firestore, configuration, server/client-side problems, and backend errors.
Can you fix Firebase backend errors?
Yes. I can investigate Firebase backend issues, configuration problems, database errors, permission errors, and other issues affecting your application.
Can you fix an existing Firebase project?
Absolutely. If your existing project is already connected to Firebase but something is failing, I can inspect the problem and work toward the correct solution.
Do you fix Firestore permission errors?
Yes. I can troubleshoot permission-denied errors and review your Firestore rules to identify why users or applications cannot access required data.
What do you need to start?
Usually, I need your project details, the error or issue you’re experiencing, relevant code/files, and Firebase access where necessary. I’ll tell you exactly what is required.
Can you work on urgent Firebase issues?
Yes, depending on the complexity and my current availability. Message me first with the issue so I can confirm whether I can handle it within your required timeframe.
Should I message you before ordering?
Yes. Sending me the problem first helps me understand your issue and recommend the correct package, especially for complex Firebase, React, or Next.js problems.
