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Fiverr Pro
Deutsch
$
USD
I will fix react native or flutter app bugs and integrate API
Full stack developer crafting fast, scalable digital solutions
Hi! I am a Full-Stack & Mobile Developer specializing in high-performance web and mobile ecosystems. With expert-level mastery in JavaScript, TypeScript, Next.js, and Java, I engineer scalable digital...
Über diesen Service
Fix Bugs, Integrate APIs, and Improve Your Mobile App
Are you facing bugs or issues in your React Native or Flutter mobile application?
I will help you fix problems, integrate APIs, and improve your mobile app performance quickly and professionally.
I am an experienced mobile and fullstack developer working with React Native, Flutter, Spring Boot APIs, and modern backend systems.
Services I Offer
- Fix app crashes and bugs
- REST API integration
- Add or update mobile features
- Fix login / authentication issues
- Firebase integration
- Fix UI issues
- Improve app performance
Technologies I Work With
- React Native
- Flutter
- REST APIs
- Spring Boot APIs
- Firebase
- PostgreSQL / MySQL
Why Choose Me
- Fast delivery
- Clean and maintainable code
- Strong backend + mobile experience
- Good communication
Please contact me before placing an order so we can discuss your requirements.
Plattform:
Plattformübergreifend
App-Typ:
Hybrid
Programmiersprache:
Objective-C
•
Swift
•
TypeScript
•
React Native
•
HTML
Tools:
Expo
•
Android Studio
•
Unity
•
Xcode
Meine weiteren Dienstleistungen im Bereich Wartung mobiler Apps
FAQ
What services do you offer?
I offer expert Mobile and Web App development services using technologies like React.js, React Native, Node.js, and Spring Boot.
Can you build both iOS and Android apps?
Yes, I specialize in cross-platform development and can create apps for both iOS and Android platforms using React Native.
Do you provide backend development as well?
Absolutely! I have experience in backend development with Node.js and Spring Boot, ensuring a complete end-to-end solution.
Can you work on existing projects or only new ones?
I can work on both existing projects that need enhancements or new projects from scratch.
How do you ensure the security of the apps you develop?
Security is a top priority. I follow best practices to secure apps, implement data encryption, and conduct thorough testing for vulnerabilities.
Can you integrate third-party APIs into the apps?
Yes, I can seamlessly integrate various third-party APIs to add features and functionalities as per your requirements.
Will I get regular updates during the development process?
Absolutely! I provide regular progress updates and encourage open communication throughout the development cycle.
Do you offer post-launch support and maintenance?
Yes, I offer post-launch support and maintenance to ensure your app runs smoothly and address any issues that may arise.
What is the typical turnaround time for a project?
Turnaround time varies based on project complexity. I provide a clear timeline during the initial discussion.
How can I get started with a project?
Simply reach out to me through the Gig, and we can discuss your requirements, timeline, and project scope to get started on your app journey!
Bewertungen
5 Bewertungen für diesen Service
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Zusammensetzung der Bewertung
- Kommunikation
- Qualität der Lieferung
- Preis-Leistungs-Verhältnis der Lieferung
Sortieren nach:
Am relevantesten
R 
roma972012
Sri Lanka
⭐⭐⭐⭐⭐ Excellent Work! I had an amazing experience working with this seller. He delivered top-notch work, exactly as described, and even went the extra mile to ensure every detail was perfect. Communication was smooth, and they were professional, friendly, and highly skilled.
50 $-100 $
Preis
4 Tagen
Dauer
Hilfreich?C calebcall
Vereinigte Staaten
I have done multiple brief's and this is both the best value and best performance I have received. I intend to reach out to mark over creating brief's from now on
50 $
Preis
4 Tagen
Dauer
M 
Antwort des Freelancers
Hilfreich?M monkeydluffp
Deutschland
He was really good in his Job and knew his Business, he helped us a lot. A pleasure to work him.
100 $-200 $
Preis
2 Wochen
Dauer
Hilfreich?R rajnish_raj
Italien
great job!
50 $
Preis
5 Tagen
Dauer
Hilfreich?E 
eslkurd
Kanada
Mark was considerate of my work and my concerns and went above and beyond to get everything done accordingly. Our team would like to say a huge Thank you!
50 $
Preis
3 Tagen
Dauer
Hilfreich?
Bewertungen
5 Bewertungen für diesen Service
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Zusammensetzung der Bewertung
- Kommunikation
- Qualität der Lieferung
- Preis-Leistungs-Verhältnis der Lieferung
Sortieren nach:
Am relevantesten
R roma972012
Sri Lanka
⭐⭐⭐⭐⭐ Excellent Work! I had an amazing experience working with this seller. He delivered top-notch work, exactly as described, and even went the extra mile to ensure every detail was perfect. Communication was smooth, and they were professional, friendly, and highly skilled.
50 $-100 $
Preis
4 Tagen
Dauer
Hilfreich?C calebcall
Vereinigte Staaten
I have done multiple brief's and this is both the best value and best performance I have received. I intend to reach out to mark over creating brief's from now on
50 $
Preis
4 Tagen
Dauer
M Antwort des Freelancers
Hilfreich?M monkeydluffp
Deutschland
He was really good in his Job and knew his Business, he helped us a lot. A pleasure to work him.
100 $-200 $
Preis
2 Wochen
Dauer
Hilfreich?R rajnish_raj
Italien
great job!
50 $
Preis
5 Tagen
Dauer
Hilfreich?E eslkurd
Kanada
Mark was considerate of my work and my concerns and went above and beyond to get everything done accordingly. Our team would like to say a huge Thank you!
50 $
Preis
3 Tagen
Dauer
Hilfreich?
