I will be your expert flutter developer for mobile app development

S
sumitr0y
S
sumitr0y
Roy
be your expert flutter developer for mobile app development
be your expert flutter developer for mobile app development
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About this gig

Looking for a premium mobile app development specialist to transform your vision into a stunning, high-performance reality? You are in the right place!

I am an expert mobile app developer specializing in cross-platform frameworks. Whether you need a native feel on iOS or a robust performance on Android, I build scalable, clean, and highly maintainable systems tailored perfectly to your business requirements. From slick app UI UX design to complex backend integrations, I handle it all.

What I Offer

  • Custom iOS and Android app development using Flutter
  • Modern, responsive app UI UX architecture
  • Real-time database integrations (Firebase, Supabase, SQLite)
  • REST API development, backend configuration, and WebSockets
  • Third-party SDK integrations (Payment gateways, audio/video streaming, Maps)
  • Bug fixing, performance optimization, and Play Store/App Store deployment

️ My Development Workflow

  1. Requirement Analysis: Deep dive into your project blueprints or wireframes.
  2. UI/UX Design Alignment: Crafting user flows that prioritize conversions.
  3. Core Engineering: Clean code writing with robust state management.
  4. Rigorous Quality Testing: Squashing performance lag and edge-case bugs.

  • App type

    • Hybrid

  • Programming language

    • Dart
    • Flutter

  • Frameworks

    • Flutter

  • Purpose

    • Chat
    • Dating
    • Streaming
    • Booking
    • Social networking
    • IoT
    • Lifestyle
    • Quiz
    • Sports
    • Trading

  • Tools

    • Android Studio
    • Visual Studio Code
    • Visual Studio

  • Expertise

    • Performance
    • Security
    • Design
    • Data storage
    • Release management
    • API integration

Get to know Roy

Roy

Your idea, my code a perfect Mobile app

  • FromIndia
  • Member sinceApr 2025
  • Avg. response time1 hour

  • Languages

    Hindi, English
Hi! I’m Sumit Kumar Roy, a Flutter Developer with 3+ years of experience in building smooth, fast, and scalable mobile applications. I specialize in creating clean UI, Firebase-integrated apps, API-based systems, dashboard modules, and complete end-to-end solutions. I focus on quality, performance, and simple user experience, and I deliver apps that are easy to manage and ready for real-world use. If you need bug fixing, new features, or a complete app from scratch — I’m here to help with reliable and professional service.

My Portfolio

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