Comprehensive School ERP Development

I need a complete ERP system for school management, including a mobile app. The primary focus should be on Student Management.

Essential Modules:
- Student Management (primary)
- Financial Management
- Human Resources

Key Features in Student Management:
- Student Enrollment and Admissions
- Class Scheduling
- Student Performance Tracking

Ideal Skills and Experience:
- Proven experience in developing ERP systems, particularly for educational institutions
- Strong expertise in mobile app development
- Familiarity with student management processes and requirements
- Ability to integrate financial and HR modules seamlessly

Please provide examples of similar projects completed, along with your approach and estimated timeline.