Platform modernization
I contributed to migrating payment services from .NET Framework 4.0 to .NET Core and .NET 7 with a zero-downtime mindset. Existing integrations, operational behavior, and partner-facing contracts had to remain dependable throughout the transition.
Payment capabilities
My work included payment-service-provider integration for top-up flows, SEPA Instant payments, and virtual IBAN capabilities. I also built partner-space reporting and outstanding-listing surfaces.
Operations
I supported continuous monitoring and incident-driven fixes, Postman API verification automation, Swagger API diff tooling across environments, and query optimization for reporting performance.
What I learned
Payment systems reward careful, incremental engineering. Clear contracts, observable behavior, and respect for existing flows matter as much as new functionality. This experience continues to shape how I approach AI and distributed systems with real operational consequences.
Evidence placeholder: Add approved scale, latency, reliability, or migration metrics before publishing quantitative claims.