Mobile app for data survey

I am looking for a mobile app developer to create a data survey app for Android. The app should be able to collect both text and image data.

Requirements:
- Experience in Android app development
- Ability to create a user-friendly interface for data collection
- Proficiency in integrating text and image data storage
- Knowledge of best practices for data encryption and security

Skills:
- Android app development
- User interface design
- Data storage and encryption

Please provide examples of previous work and a timeline for completing the project.