HULM Solutions Business Suite

Owned the backend architecture for HULM Solutions Business Suite — an enterprise SaaS platform (ERP-style) for FMCG and Telecom businesses. Designed the modular microservices structure across Core API and Application layers. Domain-driven services: Catalog, inventory, customer, promotions, reporting, and invoicing — each as a bounded service with clear ownership. Tax compliance: ZATCA (Saudi Arabia) and FBR (Pakistan) integration — automated e-invoicing, VAT calculation, and real-time tax submissions. Architecture: Keycloak for identity, robust inter-service communication, built for scale and long-term maintainability across multiple business applications. Live product: app.hulmsolutions.com — in production, serving real enterprise operations.