Build an Android Parental Control App

I need a parental control application for Android similar to onemonitar.com. The app should focus on key functionalities like:

- **Screen Time Management**: Allow parents to set limits on device usage.
- **Content Blocking**: Enable parents to block inappropriate content.
- **Location Tracking**: Provide real-time tracking of the child's location.
- **Real-Time Notifications**: Send alerts for all activities.

I'm looking for a clean and professional interface that is user-friendly. Ideal candidates should have experience in developing mobile applications, particularly in parental control features. Knowledge of Android development best practices is essential. Please share relevant past projects.