Android Video Editing App Development

I'm looking for an experienced mobile app developer to create a free video editing app specifically for Android devices. The main functionality is audio addition and editing. Please note, the user's interaction with this feature can be basic. It would be advantageous if you've had previous experience developing similar applications, and familiarity with Android app development is a must.

Key Project Requirements:
- The app is compatible with Android devices
- Offers audio addition and editing functionality
- Designed with straightforward user interactivity.

Needed Skills:
- Android App Development
- Experience in Audio Functionality Software
- Familiarity with User Interface Design.