I will fix bugs in your flutter app professionally

S
shipon0142
S
shipon0142
Shipon Sarder
fix bugs in your flutter app professionally
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fix bugs in your flutter app professionally

About this gig

Are you facing crashes, performance issues, Firebase errors, or unstable behavior in your Flutter app?

I am Shipon Sarder, a senior Flutter developer with 5+ years of mobile development experience and a strong background in native Android (Java & Kotlin).

I have worked on production-level applications, including a cross-border eCommerce app.

I specialize in:

  • Clean Architecture (BLoC, MVVM)
  • Performance optimization
  • CI/CD automation
  • Firebase & REST API integration
  • Code refactoring & maintainability
  • Production-level debugging

I dont apply temporary fixes. I analyze the root cause and provide scalable, maintainable solutions.


What I Can Fix

Complex app crashes

Firebase (Auth, Firestore, FCM) issues

State management bugs (BLoC, Riverpod, Provider)

Performance & lag problems

API integration errors

Navigation & routing issues

Build & Gradle problems

Play Store release issues

Code restructuring using Clean Architecture

  • App type

    • Native

  • Purpose

    • Delivery
    • Restaurant
    • Shopping
    • Booking
    • Medical
    • Kids
    • Education
    • Travel
    • E-commerce
    • Quiz

  • Expertise

    • Performance
    • Ads & monetization
    • Firebase
    • Analytics
    • Release management
    • Widgets
    • API integration

  • Programming language

    • Java
    • Kotlin
    • Other

  • Frameworks

    • Flutter
    • Android

  • Tools

    • Android Studio
    • Firebase

Get to know Shipon Sarder

Shipon Sarder

Senior Mobile App Developer

  • FromBangladesh
  • Member sinceJun 2015
  • Last delivery3 years

  • Languages

    English
Senior Software Engineer (Flutter & Kotlin Multiplatform) Performance-focused mobile lead with 5 years of experience in Flutter, Kotlin Multiplatform (KMP), and Compose Multiplatform (CMP). Expert in transitioning legacy native Android (Java/Kotlin) systems into modern cross-platform architectures. Proven track record in leading cross-functional teams, implementing ML-driven features, and automating deployment pipelines for iOS and Android. Specialized in building maintainable, bug-free codebases using Clean Architecture and BLoC.

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