Android App Performance Enhancement and Optimization

I'm looking for an experienced Android application developer to enhance certain features and improve the overall performance of my app. The main tasks include:

- Enhancing and adding new features.
- Optimizing the app for better performance.

Although I've not identified any specific performance issues, I would like the developer to conduct an in-depth examination to identify and rectify possible issues.

In terms of skills and experience, the ideal candidate should be proficient in Android app development and have previous experience in performance optimization and feature enhancement. Previous experience with hosting migration will also be an advantage.