Fintech & payments
Payment flows, financial infrastructure, digital onboarding, KYC, risk scoring, and secure transactions.
Software developer · Istanbul
Hi, I’m Mehmet Oya.
I design and build backend systems that turn complex business problems into reliable products.
For more than 15 years, I’ve worked across fintech, payments, digital onboarding, KYC, APIs, and distributed systems. I care about the space where engineering decisions meet product outcomes.
15+ years building software
FintechPayments & KYC
BackendAPIs & platforms
ArchitectureDistributed systems
AI agentsProduction guardrails
What I work on
From first principles to production.
I enjoy learning unfamiliar domains, making complex systems easier to understand, and sharing practical lessons that teams can apply.
Backend architecture
APIs, microservices, event-driven systems, data consistency, performance, and scalable platform design.
AI in production
Agent architecture, guardrails, reliable automation, and practical technology adoption beyond the demo.
Selected writing
Ideas worth shipping.
I write about .NET, C#, software architecture, fintech, and AI agents in production. Start with the Fin ve Tech series or browse the latest posts.
Explore the blog