At MEPSAN A.Ş., I develop backend systems and PostgreSQL database structures for live payment and ERP operations. I reduced a query’s runtime from about five minutes to 30 ms through execution-plan analysis and index optimization.
I developed cloud-integrated payment systems for POS and fiscal cash register devices, and worked on reliable payment transfer between devices and backend services. Using Node.js, REST APIs, and WebSocket, I developed real-time communication, transaction transfer, and remote management processes for more than 15,000 devices.
For KodX ERP, I developed database business rules and integrations for sales, inventory, invoicing, and reporting, and analyzed and improved issues in live systems. My work also includes PostgreSQL partitioning for high-volume data and log tables.
In my 5G energy optimization project, I prepared data and engineered features, developed prediction models with XGBoost and LightGBM, interpreted outputs with SHAP, and served results through FastAPI. I’m continuing a non-thesis master’s in Artificial Intelligence Engineering at İzmir Bakırçay Üniversitesi and developing Melora, a personal investment analysis platform using Java 21, Spring Boot, and Oracle.
