Production · Commercial SaaSMulti-Tenant SaaS

Multi-Tenant ERP & POS

Commercial Operations & Tenant Data Isolation

Role & ScopeSenior Software Engineer & Architecture
DomainMulti-Tenant SaaS
StatusProduction · Commercial SaaS
Core StackReact · Next.js · Node.js

The Challenge / Problem

Managing multiple independent companies or holding subsidiaries under a unified platform usually leads to data leakage risks, complex configuration overhead, and disparate operational flows.

Architecture & Design

Multi-tenant architecture resolving organization headers per request. Relational database with partitioned schemas and strict RBAC ensuring users only access their authorized company branch.

Engineered Solution

Constructed a multi-tenant ERP & POS platform designed with architectural tenant isolation, enabling businesses to manage inventory, catalog, sales, and analytics under secure boundaries.

Key Capabilities

Architectural Tenant Data Isolation
Multi-Company & Branch Configuration
Centralized Product Catalog & Barcode Tracking
Point of Sale (POS) with Fast Checkout
Real-Time Executive Dashboards & Analytics
Full Operational Audit Trail

Engineering Challenges

Challenge 1: Multi-company hierarchy with independent branch configurations and unified barcode resolution.
Challenge 2: Fast POS checkout with optimistic client updates and sub-second receipt dispatch.
Challenge 3: Audit trail recording immutable ledger changes for every sale, refund, and stock movement.

My Role & Contribution

Full-stack design and implementation: designed tenant resolution middleware, built reactive dashboard UI components with Next.js, and formulated relational schema partitioning ensuring strict data privacy between client companies.

Technologies

ReactNext.jsNode.jsExpressSQL ServerPostgreSQLREST APIsJWT

Looking for a Senior Software Engineer with real systems experience?

I bring depth across modern React/Next.js architectures, Node.js backend services, data modeling, and resilient software systems. Let's discuss how I can contribute to your team.

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