Feyza Özkefe

Outsourced to one of Turkey's largest state-owned banks (Halkbank), working on enterprise-level banking systems serving millions of customers. -Developing banking management systems with multi-layered architecture and microservices. -Built comprehensive REST APIs for financial operations including fee and commission calculations with MSSQL database integration. -Implemented complex frontend modules for fee management, commission calculations, and BSMV tax processing using JavaScript with custom component f

Turkey's leading tourism company, offering comprehensive booking systems and customer service platforms. -Worked on backend automation and service integration projects for one of Turkey's leading tourism companies. -Built internal tools that automated webhook data processing for Facebook-based customer support. -Migrated large datasets to Elasticsearch, improving reporting performance with Java-based data pipelines. -Maintained scalable .NET applications in a multi-layered architecture. -Led CI/CD pipeline

A US-based fintech company providing cloud-native core banking infrastructure to digital banks and fintechs worldwide. -Contributed to the backend development of a cloud-based digital banking platform. -Developed and maintained REST APIs for financial integrations. -Gained hands-on experience with SOA and complex SQL procedures. -Modernized legacy VB systems into reusable .NET components. *Supported PSD2 compliance in cross-border payment systems. Tech stack: .NET Core, MSSQL, WinForms, Web API, Docker, G

One of Turkey’s largest SaaS e-commerce infrastructure providers, offering scalable platforms for online retailers. -Worked on SaaS e-commerce systems serving hundreds of B2B clients. -Enhanced backend logic in legacy WebForms applications. -Implemented MVC features and worked on responsive frontends. -Delivered robust integrations for accounting and logistics operations. -Collaborated across teams to ensure scalable solution delivery. Tech stack: .NET, MVC, WebForms, MySQL, JavaScript, SOAP

During my internship, I transitioned from Visual Basic to Python and developed audit scenarios. I gained entry-level experience with the IDEA program.

Internship in occupational health and safety at Artek Engineering.