← Back to projects

.NET / BackendCommercial (anonymized)

Car-sharing application backend

Contributed to a car-sharing application team — .NET backend based on CQRS and PostgreSQL, collaborating with PM, client and frontend.

Problem and context

The project covered a car-sharing application: reservations, fleet operations and a coherent backend for multiple UI clients. I worked as one of the backend developers delivering the .NET server layer — product brand and end client remain anonymized.

What the solution does

  • implements domain logic on a .NET backend,
  • applies CQRS to separate write and read paths,
  • stores data in PostgreSQL,
  • exposes APIs consumed by the frontend and operational processes,
  • supports collaboration across PM, client and UI layers.

Architecture

flowchart LR
  UI[Frontend / API clients] --> API[.NET backend]
  API --> CMD[Commands]
  API --> QRY[Queries]
  CMD --> DB[(PostgreSQL)]
  QRY --> DB

Why it belongs in the portfolio

  • shows team delivery on a mobility product,
  • evidence of applying CQRS in real .NET work,
  • complements the software narrative alongside administration and integration tracks.