Android Data Entry App Development

I'm looking for an experienced Android developer to create a comprehensive data entry application. The app will be used to input, validate and display various types of data.

Key Features:
- Input Types: Text, numeric data, images, and data linking from other tables.
- Validations: Mandatory fields, field format checks, and value range checks.
- Alerts: Notifications for data inconsistencies or errors.
- Visual Displays: Graphical representation of data.

Ideal Skills and Experience:
- Proficiency in Android app development.
- Experience with data validation and input handling.
- Strong UI/UX design skills for intuitive visual displays.
- Knowledge of integrating alerts and notifications within apps.

Please share your portfolio and relevant experience.