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.NET / BackendCommercial (anonymized)

Video license sales platform backend

Independently built C#/.NET backend for selling licenses to video content — APIs, business logic, and payment/content integrations on PostgreSQL.

Problem and context

The client needed a backend for a platform selling licenses to video content: orders, payments, access entitlements and a coherent API contract for the frontend. The work was delivered in a commercial setting with real external integrations — product and client names remain anonymized.

What the solution does

  • exposes REST APIs for sales and license-management flows,
  • owns server-side order and status business logic,
  • integrates payments (Stripe) and video content services (Vimeo),
  • persists data in PostgreSQL with focus on process consistency,
  • collaborates with the frontend through explicit API contracts.

Architecture

flowchart LR
  FE[Frontend] --> API[.NET REST backend]
  API --> DB[(PostgreSQL)]
  API --> STR[Stripe]
  API --> VIM[Vimeo]

Why it belongs in the portfolio

  • shows end-to-end backend ownership, not only a supporting role in a larger team,
  • combines software delivery with payment and content integrations,
  • evidence of .NET + PostgreSQL competence in a commercial product.