I will build a high quality mobile app android ios or full stack solution

M
maksw92
M
maksw92
Maksymilian W
build a high quality mobile app android ios or full stack solution
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build a high quality mobile app android ios or full stack solution

About this gig

Im a Senior Mobile Engineer with 7+ years of experience building production-grade applications for Android, iOS, and cross-platform (Kotlin Multiplatform, React Native).


Ive worked on apps used by millions, built complex Bluetooth/BLE solutions, and developed FDA-regulated medical software. I dont just write codeI design scalable, maintainable systems that are ready for real users.


What I can build for you:

  • Native Android (Kotlin, Jetpack Compose)
  • iOS & cross-platform apps (KMP, React Native)
  • Full-stack solutions (mobile + backend + APIs)
  • Bluetooth / BLE integrations
  • Clean architecture (MVVM, MVI)
  • High-performance, production-ready apps


Why choose me:

  • 7+ years commercial experience
  • Experience with large-scale apps (millions of users)
  • Strong focus on performance & clean code
  • Clear communication & reliable delivery


If youre looking for premium quality and long-term reliability, Im the right person.


Message me before ordering to discuss your project.

  • App type

    • Hybrid

  • Purpose

    • Streaming
    • Entertainment
    • Medical
    • Health & Fitness
    • Education
    • News
    • Real estate
    • Sports

  • Expertise

    • Performance
    • Security
    • Ads & monetization
    • Firebase
    • Analytics
    • API integration
    • Compatibility

  • Programming language

    • Java
    • JavaScript
    • Kotlin
    • Swift
    • React Native

  • Frameworks

    • Jetpack Compose
    • Android
    • React Native
    • Other

  • Tools

    • Android Studio
    • Firebase

Get to know Maksymilian W

Maksymilian W

Android Developer

  • FromPoland
  • Member sinceJul 2019
  • Avg. response time1 hour

  • Languages

    English, Polish
Senior mobile engineer with 7+ years delivering production-grade Android, iOS, and cross-platform apps (Kotlin Multiplatform, React Native). I’ve built systems used by millions, integrated complex Bluetooth/BLE solutions, and developed FDA-regulated medical software (diabetes). I focus on clean architecture, performance, and long-term scalability. If you need more than just code—reliable execution and engineering quality - I’m the right fit.

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