How We Built EduNexus: A Technical Case Study

EduNexus started with a simple observation: schools in Malawi were struggling with paper-based systems and disconnected software tools. We set out to build a single platform that could serve multiple schools while keeping each school's data completely isolated.

Architecture Decisions

We chose a multi-tenant architecture with row-level security in PostgreSQL. This means all schools share the same application instance and database, but each school sees only its own data. This approach keeps costs low while maintaining security.

Key Technical Choices

React and Next.js for the frontend, providing fast page loads and good SEO. Node.js with NestJS for the API layer, offering TypeScript safety and a modular structure. PostgreSQL with row-level security for data isolation. Redis for caching and real-time features.

Challenges We Solved

One major challenge was designing for offline resilience — many schools have unreliable internet. We built offline-capable features that queue data and sync when connectivity returns. Another challenge was integrating mobile money payments, which required working with local payment gateways.

Results

Today, EduNexus serves 15+ schools and 8,000+ students across Malawi. Schools report 60% less time spent on administrative tasks and 40% improvement in fee collection rates.