Student Grade Management Module -- 2

I need a focused student-management module that handles grade management end to end. The core requirement is that grades flow into the system automatically once exams are completed, so manual entry by teachers should not be part of the day-to-day workflow.

The module should:
• Pull exam results in real time (API, CSV import, or direct database link—whichever you propose)
• Calculate final marks using configurable weightings and grading scales
• Display individual and class summaries in an intuitive dashboard for teachers, students, and parents
• Export reports to PDF and Excel

If your solution can live inside an existing school management framework or be integrated later, even better; for now I only need the student grade component, not attendance, profiles, or staff features. Please outline your proposed tech stack, timeline, and any similar projects you have delivered.