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I will develop mobile apps with rest api backend
Ramez Rayyan
About this gig
Are you looking to build a powerful, scalable mobile app for Android and iOS with a robust custom backend?
I will develop high-performance cross-platform apps using Flutter integrated with a custom REST API backend (Node.js or Nest.js). This ensures fast performance, secure data handling, and smooth communication between the app and server.
What I Offer:
- Full Android & iOS app development with Flutter
- Custom REST API development and integration
- Secure authentication (JWT, OAuth, Firebase Auth)
- Real-time features using WebSockets
- Database design (MySQL, PostgreSQL, MongoDB)
- Advanced features: push notifications, payments, maps, file uploads, admin panels
- Clean architecture, well-documented code & optimized performance
- App Store and Google Play publishing assistance
Why Choose Me?
- Specialized in Flutter + Custom Backend REST API
- Scalable and secure solutions for startups and businesses
- Clean, maintainable code thats easy to extend
- Fast communication and on-time delivery
Whether you have a full idea, Figma designs, or just a concept, Ill deliver a professional, production-ready mobile app with a strong backend.
Lets discuss your project and build something great together!
Get to know Ramez Rayyan
Ramez Rayyan
Full Stack Mobile App Development
- FromAfghanistan
- Member sinceMar 2026
- Avg. response time1 hour
Languages
English, Persian, Pashto, Urdu
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, alongside robust backends with Node.js & NestJS. My career is defined by solving high-stakes challenges at industry-leading companies: Head of Development at Arta Afghan ITC, Mid-Senior Developer at Asia Pharma, and Senior Developer at Rahanet ISP. From fintech to streaming, I deliver clean, scalable code and professional-grade results. Let’s build your vision into a high-performance reality.
My Portfolio
FAQ
Do you build apps for both Android and iOS?
Yes, I develop fully cross-platform apps using Flutter that work smoothly on both Android and iOS from a single codebase.
Do you develop the custom backend as well?
Yes. I build or integrate a complete custom REST API backend using Node.js or Nest.js according to your requirements.
What backend technologies do you use?
I mainly use Node.js and Nest.js for the backend, along with databases like MongoDB, MySQL, or PostgreSQL.
Can you integrate authentication and security?
Absolutely. I implement secure authentication using JWT, OAuth, Firebase Auth, role-based access, and other security best practices.
Do you support real-time features?
Yes, I can add real-time functionality using WebSockets or Socket.io when needed.
Will I get the full source code?
Yes, you will receive the complete Flutter source code for the mobile app and the full backend source code with proper documentation.
Can you publish the app on stores?
Yes, I provide assistance with publishing your app on Google Play Store and Apple App Store.
What if I already have a backend?
No problem. I can integrate your existing backend or REST API with the Flutter mobile app.
How long does the project take?
Delivery time depends on the complexity and number of features. I will provide a clear timeline after reviewing your requirements.
Do you offer maintenance after delivery?
Yes, I offer post-delivery support and maintenance. Longer-term maintenance packages are also available.
