I will be your professional cross platform app developer

S
sonukg096
S
sonukg096
Sonu Kumar
be your professional cross platform app developer
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be your professional cross platform app developer
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be your professional cross platform app developerbe your professional cross platform app developerbe your professional cross platform app developer

About this gig

Looking for a scalable and future-proof cross-platform mobile app?


I specialize in Kotlin Multiplatform (KMP) and Compose Multiplatform (CMP) to build high-performance applications that share business logic across Android, iOS, Desktop, and Web while maintaining native performance and user experience.


With 7+ years of mobile development experience, I help startups and businesses reduce development time and costs by creating a shared codebase without compromising quality. Whether you need a new app from scratch, want to convert an existing native project into Kotlin Multiplatform, or require architecture modernization, I deliver clean, scalable, and maintainable solutions.


Services include full KMP development, Compose Multiplatform UI, shared data and domain layers, API integration (REST/Ktor/GraphQL), offline-first architecture with SQLDelight, Firebase integration, secure authentication, performance optimization, and ongoing feature development. I follow modern practices like Clean Architecture, MVVM/MVI, and modular design to ensure long-term scalability.


I have experience building e-commerce, finance, productivity, social, and enterprise apps with modern UI/UX.

  • App type

    • Native

  • Programming language

    • Java
    • Kotlin
    • Swift
    • Objective-C

  • Frameworks

    • Jetpack Compose
    • SwiftUI
    • Jetpack Compose Multiplatform

  • Purpose

    • Chat
    • Music
    • Restaurant
    • Shopping
    • Finance
    • Social networking
    • Maps & navigation
    • Productivity tools
    • Ecommerce
    • Wallet app

  • Tools

    • Android Studio
    • Xcode
    • Firebase
    • Visual Studio Code

  • Expertise

    • Localization
    • Performance
    • Security
    • Design
    • Data storage
    • Firebase

Get to know Sonu Kumar

Sonu Kumar

Fast and Reliable Mobile App Development

  • FromIndia
  • Member sinceOct 2025
  • Avg. response time5 hours

  • Languages

    English, Hindi, Punjabi
I am a results-driven Android Developer with 7+ years of expertise in building scalable, secure, and high-performance mobile applications. With a strong background in Java, Kotlin, Android SDK, and modern frameworks, I have consistently delivered apps that meet business goals and delight end-users. 🔹 Core Strengths • Proven ability to design and implement robust Android architectures (MVVM, MVP, MVI, Clean Architecture) that ensure scalability, security, and long-term maintainability. • Proficient with Jetpack Compose, Kotlin Coroutines, Retrofit, Room, and modern Android tools.

My Portfolio

Other Mobile App Development Services I Offer

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