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Fiverr Pro
Nederlands
$
USD
I will quick fix flutter bugs, API issues and improve app performance
Senior Full Stack Mobile Developer Flutter, React Native, APIs
I’m a Flutter, React Native & Full Stack Developer with 5+ years of experience building fast, scalable mobile apps. I specialize in fixing bugs, improving performance, and integrating APIs for smooth ...
Over deze dienst
I will fix Flutter bugs, API issues, crashes, and improve your mobile app performance quickly and efficiently.
Im a Flutter Developer and Full Stack Developer specializing in Flutter App Development, Mobile App Development, Firebase Integration, API Integration, and scalable cross-platform applications. I focus on debugging production apps, fixing crashes, optimizing performance, and improving app stability for Android and iOS.
Services I offer:
- Fix Flutter bugs, errors, and crashes
- Resolve API & backend connectivity issues
- Improve app performance and speed optimization
- Fix UI/UX issues and responsive layouts
- Firebase setup (Authentication, Firestore, Notifications)
- Refactor code for scalability and maintainability
- Add new features and improve functionality
- Fix state management and real-time sync issues
Expertise:
Flutter Developer, Mobile App Developer, Firebase Developer, API Integration, Node.js Backend, Cross-Platform App Development, Bug Fixing, App Optimization, SaaS Apps, Marketplace Apps, and Full Stack Development.
Please contact me before placing an order to discuss your requirements and ensure the best solution for your app.
Platform:
Platformonafhankelijk
App-type:
Hybride
Frameworks:
Flutter
•
Laravel
•
Angular
•
Node.js
Programmeertaal:
Dart
•
JavaScript
•
PHP
•
TypeScript
•
React Native
•
HTML
Tools:
Android Studio
•
Xcode
•
Overige
Mijn portfolio
Andere Onderhoud van mobiele apps diensten die ik aanbied
Veelgestelde vragen
What do you need to get started?
I will need your source code, a clear description of the issue, and any relevant API or backend details. Screenshots or screen recordings are helpful for faster understanding.
Do you fix all types of Flutter bugs?
Yes, I can fix most Flutter-related issues including crashes, UI bugs, API errors, performance problems, and Firebase-related issues. Please contact me first for complex problems.
Can you work on existing apps?
Yes, I specialize in improving and fixing existing Flutter applications, even if the code was written by another developer.
Do you provide API integration and backend support?
Yes, I can integrate REST APIs, fix API issues, and work with backend services like Firebase, Node.js, or Laravel.
Will you improve app performance?
Yes, I can optimize your app for better speed, smoother UI, and overall improved performance.
Do you provide source code after completion?
Yes, I always provide clean and updated source code with all fixes applied.
What if my issue is small?
You can message me with details. I also offer custom pricing for small fixes and quick tasks.
Do you offer support after delivery?
Yes, I provide basic support after delivery to ensure everything works as expected.
How long does it take to fix complex Flutter bugs?
The timeline depends on the issue complexity, app structure, and whether backend/API debugging is required. Simple bugs can often be fixed quickly, while complex issues may take 1–3 days or more after reviewing the code. I will first check the issue, explain the cause, and then share a clear timelin
