[ CASE STUDY ]

MRS Agency Billing Software

Full billing platform with a Flutter frontend and FastAPI + PostgreSQL backend — built for scale, not just for now.

Shipped ✓FlutterFastAPIPythonPostgreSQL

The Problem

MRS Agency needed more than a basic billing setup. More clients, more complexity, and data that couldn't live in a single local file — they needed cloud-level reliability with a proper database behind it.

What I Built

  • A Flutter frontend talking to a FastAPI backend, with PostgreSQL as the source of truth.
  • Invoice management, client tracking, and multi-record storage — a real step up from the first billing app in both architecture and scope.
  • Separating the frontend from the backend meant the data layer could grow independently of the UI. That decision paid off fast.

Result

Shipped and in production use.

FlutterFastAPIPythonPostgreSQL
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