I will fix firebase backend bugs and API integration issues


About this gig
Having issues with your Firebase backend, database, or API integration?
I will help you debug and fix Firebase backend problems, authentication errors, database issues, API failures, and broken app functionality for web and mobile applications.
Whether your app has login problems, Firestore errors, slow queries, broken APIs, or backend connection issues, I can help make your system stable and functional again.
What I offer:
- Firebase bug fixing
- Firebase authentication fixes
- Firestore & Realtime Database troubleshooting
- API integration debugging
- Backend error fixing
- Database optimization
- Web & mobile app backend support
- Performance improvements
I work with React, React Native, Supabase, APIs, and modern backend systems.
Message me before ordering so we can review the issue properly.
Get to know Alex
AI SaaS and Mobile App Developer
- FromUnited Kingdom
- Member sinceMay 2026
- Avg. response time1 hour
Languages
English, Spanish, German
Other Software Development Services I Offer
FAQ
What Firebase issues can you fix?
I can fix authentication errors, Firestore issues, API failures, database bugs, backend crashes, and deployment problems.
Do you work with Firebase for mobile apps?
Yes, I work with Firebase for React Native, Android, iOS, and web applications.
Can you fix API integration problems?
Yes, I can debug and fix broken APIs, webhook errors, and backend connection issues.
Do you optimize Firebase database performance?
Yes, I can improve database structure, query performance, and backend efficiency.
