Detailed case studies of multi-tenant ERP platforms, AI contextual engines, Shopify integrations, and web applications built by Rahatutzaman Rizon.
Auto-Indexing RAG, Access-Control RAG, Multi-Agent Handoffs & Observability
Production-grade enterprise AI agent suite featuring automated knowledge base re-indexing, RBAC access-control RAG, confidence scoring, fallback model chains, LangSmith-style tracing, and structured JSON extractions.
Enterprise Multi-Tenant Travel ERP & Booking Engine
Comprehensive multi-tenant travel ERP platform covering Flight, Hotel, Visa, Umrah, CRM, B2B Agent Portals, Accounts, and automated payment/invoicing.
Multi-Tenant Flight & Hotel Booking SaaS
Scalable B2B/B2C travel platform providing real-time flight search, hotel room selection, visa workflow management, and payment gateway integration.
Knowledge Search & AI-Powered Workflow Engine
Retrieval-Augmented Generation system enabling contextual document search, automated policy lookup, email response generation, and workflow automation.
High-Performance Canadian Education Web Platform
Responsive education website delivering clean course structures, fast page loads, interactive contact modules, and optimized content delivery.
Custom E-Commerce Storefront & Order Integration
Custom Shopify storefront extension, REST API sync engine, inventory tracking, and specialized order fulfillment workflows.
Lease Management, Rent Ledger & Account Engine
Property management platform handling tenant leasing, rent ledger automation, maintenance requests, and landlord balance dashboards.