School Management System App Development

I'm looking for an experienced mobile app developer to create an Android application for a school management system. This app will be used by teachers, students, and parents and will include essential features such as:

- Student Attendance Tracking: A real-time system to monitor student presence in school.
- Homework and Assignments: A dedicated section for teachers to post assignments and for students to submit their homework.
- Grade Reporting: An integrated system for teachers to input student grades and for parents to access these reports.

I need a professional who has a strong background in Android development, preferably with experience in creating educational or management-related applications.