At DBLB Tech, I ship features across a multi-tenant retail POS/ERP platform, from relational data models and REST APIs to responsive front ends. I built the self-service kiosk module end to end, including store-configurable Stripe and Razorpay payments and a live kitchen display screen.
I also delivered permission-gated warehouse workflows and a shipment-to-invoice path that bills only the quantity delivered. To support accurate operations, I corrected inventory lookups and added stock validation guards.
I integrated the platform with Microsoft Dynamics NAV through .NET Windows Services that sync business data between systems. I also designed a reusable document template engine and rolled it out across invoices and shipments.
On MandelX, my multi-tenant SaaS commerce project, I built a REST API with tenant-scoped data isolation and automated provisioning, alongside granular role-based access and dual JWT and API-key authentication. I’ve also taught web development, software engineering, and computer networks at Poddar College.

