Okan Akçay
Full-Stack .NET Developer

Hi, I'm Okan!

I turn business problems into scalable software solutions.

View My ExperienceGet in Touch

With more than 10 years of experience, I build energy trading, e-commerce, marketplace and enterprise integration systems.

I design high-performance backend services and scalable software architectures in the .NET ecosystem. I take ownership of the whole process, from understanding business needs and making technical decisions to development and production operations.

What I Do

High-volume data processing

I design and build systems that process large-scale data flows reliably, quickly and at scale.

Full-stack enterprise applications

End-to-end development with .NET and Angular: APIs, business rules and the interfaces operations teams use every day. I protect code quality with unit and UI tests.

E-commerce backends

Cart, checkout steps, campaigns, returns and the order lifecycle. Managing online and in-store sales in the same flow.

System integrations

Data flows between marketplaces, ERP, payment and shipping services. Retryable operations that never create duplicate records on repeated requests.

Operations tooling

Admin screens, scheduled reports and background jobs for warehouse, store and after-sales teams: bulk invoicing, stock alerts, label printing.

Databases and performance

Query optimization, indexing and performance analysis on MSSQL and PostgreSQL. I cut database costs and make systems more sustainable through measurable improvements.