I will develop flutter , swift and kotlin android and ios


About this gig
I am a Senior Mobile App Developer with 3+ years of hands-on commercial experience and 8+ successfully published production apps on Google Play and App Store.
I specialize in building high-performance, scalable, and beautiful mobile applications using Flutter, SwiftUI, and Kotlin. Whether you need a cross-platform app or native apps I deliver professional, clean, and market-ready solutions.
My Expertise Includes:
- Flutter (Cross-platform Android + iOS)
- Native iOS Development with SwiftUI
- Native Android Development with Kotlin
- Clean Architecture + MVVM Pattern
- AI/ML Integration (OpenAI, Gemini, ML Kit, OCR, etc.)
- Real-time Features (WebRTC, Socket.IO, Firebase)
- Payment Integration (Stripe, Apple Pay, Google Pay)
- High-performance & Optimized Apps
- Pixel-perfect UI/UX from Figma
- Full App Store & Play Store Submission
Why Work With Me?
- 8+ Live Apps in Production
- Strong focus on Clean Code, Performance & Scalability
- Excellent Communication & Regular Updates
- Post-delivery support & maintenance
- Fast turnaround with quality delivery
From simple MVPs to complex enterprise-level applications I can handle it all.
If you have an app idea or an existing app that needs improvement,
Get to know A. WAHAB
Flutter Swift and Kotlin Developer Expert in Cross Platform and Native App
- FromBangladesh
- Member sinceMar 2026
Languages
English, Bengali
My Portfolio
FAQ
Can you design the UI/UX of my app?
Yes, I provide professional UI design with modern and responsive screens for both Android and iOS.
Which architectural patterns and state management do you use?
I strictly follow Clean Architecture and MVVM patterns to ensure the code is scalable and maintainable. For state management, I expert-level utilize Riverpod, BLoC, or Provider depending on the project requirements.
Can you build real-time audio/video calling features?
Yes, absolutely! I have extensive experience implementing low-latency 1:1 and group audio/video calling features using WebRTC and Socket.IO with proper background mode support.
Will you assist with publishing the app to the Play Store and App Store?
Yes, I handle the full app lifecycle development, including generating release builds, configuring App Store Connect / Google Play Console, and managing the entire submission process.
Do you convert Figma designs into functional mobile apps?
Yes, I can convert your Figma, Adobe XD, or Sketch designs into a pixel-perfect, highly responsive Flutter or SwiftUI mobile application with smooth layouts and clean code.
Will you provide the complete source code of the application?
Yes, absolutely! Once the project is successfully completed and approved, I will deliver the 100% full source code with detailed documentation on how to run it.
Can you optimize my existing mobile app's performance and size?
Yes, I have a proven track record of optimizing application performance. I can refactor existing code, compress assets, and profile your app to reduce bundle size by up to 20% and achieve 30% faster cold start times.
Do you provide post-delivery support or maintenance?
Yes, I provide free support and maintenance for a specific period after delivering the project to fix any bugs or technical glitches. Your satisfaction is my top priority.

