Istanbul · UTC+3 · okanyurt.com
Enterprise backend architect, now building AI infrastructure — the kind where the data can’t leave the building.
Senior Software Engineer & Tech Lead with 10+ years on business-critical systems in retail, mobility and enterprise audit. I design distributed backends with .NET, Node.js and PostgreSQL — and lately, the MCP-based agent platforms that sit on top of them.
project: AI chatbot infrastructure — internal control & audit platform
role: architecture & development, end to end
protocol: MCP (Model Context Protocol)
llm: on-premise # data privacy: nothing leaves the network
backend: [.NET Core, PostgreSQL, Redis, RabbitMQ, Elasticsearch]
identity: Keycloak / OpenID Connectcurrent-work.yaml, drawn out: an AI assistant for internal control & audit, where every hop — agent, tools, model — stays inside the corporate network.
The privacy constraint is the architecture. The model is self-hosted, every tool reaches data through an MCP server, and no token ever crosses the boundary.
Designing and building the MCP-based AI chatbot infrastructure of an enterprise internal control & audit platform. The constraint shapes the architecture: audit data is confidential, so the LLM runs on-premise and every agent call stays inside the network. Owning the backend end to end — PostgreSQL, Redis, RabbitMQ, Elasticsearch, Keycloak / OIDC.
Technical owner of the backend. Designed the platform architecture from scratch on Clean Architecture, DDD and CQRS, owned the code-review and PR process, and rolled out company-wide identity with Keycloak. CI/CD on Azure DevOps.
Built the call-center platform on AWS with a microservice architecture — .NET Core, Node.js / NestJS, PostgreSQL — while carrying team responsibility: hiring, mentoring, delivery.
Built and modernized the business-critical allocation & replenishment systems of one of Europe’s largest fashion retailers’ supply chains — .NET, Node.js, Angular, PostgreSQL at enterprise scale. In-team mentoring.
End-to-end delivery in logistics, customs and warehouse management: cargo tracking and summary-declaration systems for Çelebi, online & mobile transactions for Hursan Logistics (published to both app stores), ministry WSDL/SOAP integrations, e-invoice and POS payments. C#/.NET, PHP, Delphi, MSSQL & MySQL.
Product development at LOGO (inventory tracking with Delphi), IT services at Li & Fung, and internal applications with C# at Doğan Gazetecilik.
First production code: reservation and tour-planning systems used in daily operations by three tourism companies — C#/.NET on MSSQL, PostgreSQL and MySQL.
Interesting architecture problem? AI infrastructure that has to run inside the network? The fastest way to reach me is email or LinkedIn.
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