Project · Case study
Vendas Zenix
Problem
fragmented accounting and invoicing systems created data silos, manual reconciliation errors and tax-compliance risk.
Solution
a unified, API-first platform integrating entities, products, taxes, invoicing and financial reconciliation, with automatic compliance (SAF-T export, multi-tenant support). My role: I architected the domain-driven NestJS backend, designed RBAC access control, optimised queries with Redis caching for a high-transaction environment, and led the DevOps setup (Docker, CI/CD).
Results
in enterprise use, with end-to-end auditable invoicing and reconciliation.
Tech stack
NestJS, TypeScript, PostgreSQL, Redis, Docker, CI/CD (Azure DevOps).