2026SaaSITI Graduation Capstone
OrderX
Multi-tenant SaaS café-management platform with a real-time ordering engine and an AI assistant.
Role: Full-Stack Engineer
Next.js 15Node.jsMongoDB AtlasSocket.ioGemini RAGTypeScriptTailwind

The Challenge
Independent cafés lack an affordable, real-time, multi-branch ordering and management system that scales with their business.
What I Built
- Multi-tenant architecture supporting fully isolated café accounts
- Real-time order board via Socket.io — updates in under 200ms
- Owner analytics dashboard with revenue, order trends, and peak hours
- Customer-facing ordering app with table QR code support
- Gemini-powered RAG assistant for owners to query their own data
Architecture & Tech
Microservices-inspired monorepo with a Next.js frontend, Express API, MongoDB Atlas for persistence, Socket.io for bi-directional real-time events, and a Gemini-powered RAG pipeline for intelligent owner insights.
Next.js 15Node.jsMongoDB AtlasSocket.ioGemini RAGTypeScriptTailwind









