Gökçe Güler← Back to portfolio

In development · 2026–Present

Payment Platform

An ongoing reference project where I deepen my .NET skills through real payment-domain problems.

Where it started

While learning .NET, I wanted to work on a failure-sensitive domain involving transactions, idempotency, webhooks and reconciliation rather than build another CRUD application.

My part

Independent Developer

What I built

I am building an ASP.NET Core platform that models payment orchestration, idempotent request handling, webhook verification, ledger entries and reconciliation workflows.

Where it stands

This is not a live financial product; it is an ongoing reference project for production-minded practice in .NET and payment systems.

What stands out

  • Idempotent payment requests
  • Webhook processing and retries
  • Ledger and reconciliation model

On the technical side

ASP.NET Core lets me deepen my knowledge of the .NET ecosystem. Immutable ledger records and idempotency keys provide safer financial consistency than simple state updates.

Built with

C#ASP.NET CorePostgreSQLDocker