Marco Abel Zefanya, home
Back

Context: InternalRole: Full-Stack Developer

Internal ERP Platform

Connected Operations System

Connects Sales, Purchasing, Inventory, and Production around one consistent operational flow.

Availability

Private production system

  • Cross-module document flows
  • Role-based operational access
  • Search, pagination, and exports

About the app

An internal ERP platform that connects the daily Sales, Purchasing, Inventory, and Production processes so one operational document flow runs across all four departments.

Technology stack

  • TypeScript
  • Next.js
  • React
  • Node.js
  • Express.js
  • PostgreSQL
  • MongoDB

Features

  • Sales and purchasing documents that follow one consistent business flow.
  • Inventory and production modules tied to those documents.
  • Role-based access, so each department only reaches what it should.
  • Search, filtering, and pagination across every module.
  • Spreadsheet exports and cross-document navigation for traceability.

Responsibilities

  • Built the frontend modules and the shared interaction patterns reused across them.
  • Developed the REST API behavior behind each operational document.
  • Modeled the data across PostgreSQL and MongoDB, per record shape.
  • Translated the staff's real workflows into product features.
  • Kept workflow rules in backend services rather than scattered across the UI.

Sanitized visual/cover

Representative visual published without confidential product data.

Sanitized ERP dashboard showing operational modules