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I will fix flutter app bugs, crashes, UI issues and performance
Flutter Developer for Android, iOS, Firebase and REST APIs
Hi, I'm Shazzad Hossain, a Flutter developer building Android and iOS apps with clean Dart code. I work on Figma-to-Flutter UI, Firebase Auth/Firestore, REST API integration, push notifications, bug f...
About this Gig
Is your Flutter app crashing, showing UI issues, failing API calls, or behaving differently on Android and iOS? I can review your existing Flutter project, find the real issue, and fix it with clean, readable Dart code.
I can help with:
- Flutter crash and runtime error fixing
- UI layout, overflow, responsiveness, and screen issues
- Firebase, Firestore, Auth, and FCM bugs
- REST API integration errors
- Login, signup, profile, dashboard, and data flow issues
- Performance cleanup and dependency/build issues
- Android and iOS testing where project setup allows
What I need:
- Your Flutter source code or GitHub access
- Screenshot/video of the issue
- Steps to reproduce the bug
- Device/OS details
- API/Firebase details if related
Please message me before ordering so I can confirm the bug scope, timeline, and best package.
My Portfolio
FAQ
Can you fix bugs in an existing Flutter app?
Yes. I can work on existing Flutter projects if you provide the source code and clear steps to reproduce the issue.
Do you need full source code?
For most bugs, yes. A GitHub repo is best. If the issue is small, a ZIP file can also work.
Can you fix Firebase or API bugs?
Yes. I can fix Firebase Auth, Firestore, FCM, REST API, model parsing, and request/response handling issues.
Do you test on Android and iOS?
I can test key flows on available setups. If iOS release testing is needed, please confirm device/account access first.
Should I order directly?
Please message me first so I can confirm the bug scope and avoid choosing the wrong package.
