Vendzo – Multi-Tenant Business Management & POS System

Built as part of my own company StackLeo — a scalable multi-tenant REST API backend for a full-featured business management platform. Covers purchase management with multi-payment and installment support, sales processing, purchase & sales returns, expense tracking, and supplier/customer management. Includes real-time stock monitoring, profit/loss reporting, investment and withdrawal tracking, and role-based access control with granular permission codes. Activity logging with auto-redaction built in globally.