I will build custom kotlin apps and fix android bugs, errors, crashes

L
lilkeller
L
lilkeller
Keller
build custom kotlin apps and fix android bugs, errors, crashes
Full Screen
build custom kotlin apps and fix android bugs, errors, crashes

About this gig

Need a reliable Kotlin developer to build your Android app or fix frustrating bugs and crashes? You're in the right place!

Hi, I'm Keller an experienced Android developer with deep expertise in Kotlin, ready to help you bring your app idea to life or get your existing app running smoothly again.


Whether you need a full custom app, crash fixes, performance improvements, or help transitioning from Java to Kotlin, I'll deliver clean, maintainable, and optimized code tailored to your needs.


What I Can Do For You:

  • Custom Android app development in Kotlin
  • Fix bugs, crashes, and UI issues
  • Convert Java Android code to Kotlin
  • Add new features or screens
  • Connect APIs or Firebase
  • Performance optimization and debugging
  • Clean, well-documented code


Lets build something powerful and user-friendly or save your app from frustrating issues. Your Android project is in good hands!


️ Have a specific task in mind? Message me first for a quick consultation!

  • App type

    • Native

  • Purpose

    • Chat
    • Streaming
    • Booking
    • Finance
    • Health & Fitness
    • Education
    • Crypto
    • Custom
    • Trading
    • VPN

  • Expertise

    • Cross-browser/Device compatibility
    • Performance
    • Security
    • Data storage
    • Analytics
    • Widgets

  • Programming language

    • React Native
    • Python
    • Java
    • PHP
    • Kotlin
    • JavaScript
    • HTML

  • Frameworks

    • Flutter
    • NativeScript
    • Laravel
    • Angular
    • Node.js
    • Android
    • React Native

  • Tools

    • Thunkable
    • Power apps
    • Bubble.io
    • Flutterflow
    • Bravo
    • AppSheet
    • AppGyver

Get to know Keller

Keller

Front Row

  • FromUnited States
  • Member sinceJul 2024
  • Avg. response time4 hours

  • Languages

    English
👋 Hi, I’m Keller— a flexible and results-driven developer with experience across web, mobile, and backend development. I work with Kotlin, Android, JavaScript, Svelte, SvelteKit, Python, HTML/CSS, SQL, and REST APIs. Whether it’s building an app, fixing bugs, or integrating systems, I focus on writing clean, efficient, and scalable code that meets real needs. Let’s build, fix, or improve your project

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