At Digiturk / beIN Media Group, I built and supported C#/.NET backend services for a payment and collections platform serving 2.6M+ users. I also developed and maintained REST and SOAP integrations with banking partners.
I worked across backend changes from requirements analysis and implementation through testing, release validation, and production support. I used Oracle PL/SQL to support reconciliation, reporting, and transaction-heavy workflows, and helped modernize the data-access layer with Entity Framework Core.
I built TablePay, a QR restaurant payment system, with .NET 8, ASP.NET Core, and EF Core. I implemented payment workflows and callback handling, then tested integration behavior and failure recovery using iyzico Sandbox and ngrok.
