I will fix onboarding, bluetooth, location, sensors, SSL certs, migration, and slow dbs

United States

I speak English, German, Italian, French

Mobile App Bug Fixing and Performance Optimization Expert

Greetings I am David Virgil. My obsession with mobile app development started years ago when a battery drain bug almost ruined a major launch. Since then I have dedicated my career to mastering app op...
About this Gig

Hello! Your app should not lose users because Bluetooth drops, location fails, onboarding breaks, or the database takes forever to respond.


If your mobile app is struggling with BLE connections, GPS/location bugs, sensor issues, SSL certificate errors, migration problems, slow database queries, or broken onboarding flows, I can diagnose the root cause and fix what is holding the app back.


I can help with:

  • Mobile app bug fixing and debugging
  • Bluetooth and BLE connection issues
  • GPS, location, and permission bugs
  • Sensor and device integration fixes
  • SSL certificate and secure connection errors
  • App and database migration issues
  • Slow database optimization
  • Onboarding and login flow fixes
  • Android and iOS compatibility
  • Flutter and React Native troubleshooting
  • Performance testing and stability fixes


I focus on clean fixes, practical debugging, careful testing, and clear communicationnot temporary patches that create another problem later.


Have a difficult app issue that other fixes have not solved?


Send me the error details, logs, screenshots, or reproduction steps, and I'll help you move toward a stable, reliable app.

Platform:

Cross-platforms

App type:

Hybrid

Frameworks:

Flutter

•

NativeScript

Purpose:

Entertainment

•

Health & fitness

•

Education

•

Lifestyle

•

Travel

Expertise:

Performance

•

Security

•

Design

•

Data storage

•

Firebase

Programming language:

Dart

•

JavaScript

Tools:

Android Studio

•

Xcode

•

Other