Android Bluetooth App - Feature and Command Updates

I am looking for an experienced Android developer to add new features and update commands in my fully completed Android Bluetooth app. The app is currently in a fully completed state but requires updates to enhance its functionality and user experience.

Specifically, I need the following updates:

Connectivity features:
- Improve the connection stability and reliability
- Enhance the pairing process for seamless device connectivity

Data transfer features:
- Optimize data transfer speed and efficiency
- Implement error handling and recovery mechanisms for interrupted transfers

User interface features:
- Refresh the app's design and layout for a more modern and intuitive look
- Customize the user interface to allow for personalization options

The ideal candidate for this project should have:
- Strong experience in Android app development, particularly with Bluetooth connectivity
- Proficiency in Java and Android SDK
- Familiarity with Bluetooth protocols and standards
- Knowledge of UI/UX design principles

The updates need to be completed within a week, so the candidate must be able to work efficiently and meet deadlines. Attention to detail and the ability to troubleshoot and debug any issues that may arise during the update process are also crucial.