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I will fix bugs and improve performance in your flutter app
Full Stack Mobile App Development
Hey, I'm Ramez Rayyan—a Senior Full-Stack Developer with 5+ years of expertise engineering high-performance mobile apps and backend solutions. I specialize in custom iOS & Android apps using Flutter, ...
About this Gig
Is your Flutter app crashing, failing to build, or behaving incorrectly?
I will diagnose and fix Flutter issues while keeping your existing code and functionality as stable as possible.
I can help with:
Build and dependency errors
Android or iOS configuration problems
UI overflow and responsive-layout issues
API and JSON errors
Firebase configuration problems
State-management bugs
App crashes and navigation issues
Slow screens and unnecessary rebuilds
Code cleanup and performance improvements
Please send the source code or repository access, screenshots or screen recordings, error logs, Flutter version, and clear steps to reproduce the issue.
Each package covers the stated number and complexity of bugs. New features, full app redesigns, and major version migrations are quoted separately.
Contact me before ordering because a small visible error may require a deeper technical fix.
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FAQ
Can you fix every Flutter bug?
I can investigate most Flutter issues, but I must review the source code, logs, and reproduction steps before confirming the scope, price, and delivery time.
What is considered one bug?
One bug is one clearly defined problem with a reproducible cause. Several symptoms caused by the same issue may count as one bug, while one visible problem may involve multiple unrelated causes.
Do I need to provide the full source code?
Usually, yes. Source-code access is required to reproduce, diagnose, and safely fix most Flutter problems.
Can you fix Android and iOS build errors?
Yes. I can investigate Flutter, Gradle, CocoaPods, dependency, signing, configuration, and platform-specific issues. Developer-account problems may require buyer action.
Can you improve app performance?
Yes. I can investigate unnecessary rebuilds, slow screens, large lists, image loading, memory use, blocking operations, and inefficient state management.
Can you update Flutter and project dependencies?
Yes, after reviewing the project. Major Flutter migrations or packages with breaking changes may require a custom offer.
Will you add new features under the bug-fixing package?
No. New functionality is separate from fixing an existing feature and must be quoted independently.
What happens when the issue comes from a third-party service?
I can diagnose the app-side integration. Fixes involving an external API, backend server, package maintainer, payment provider, or platform service may depend on third-party access and availability.
