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Turkcell – Kuzey Yıldızı Project

• Contributed to Turkcell’s Kuzey Yıldızı project, which serves corporate clients and is divided into three main sections: mobile, fixed, and MS. In each section, I worked on tools that enable the digital management of offer preparation, profitability analysis, and approval processes.
• Developed tools to calculate the revenues and expenses of offers and enhanced systems that analyze their profitability.
• Worked on backend and frontend development specific to the needs of the mobile, fixed, and MS sections, using technologies like Java 8, PL/SQL, JSF, Hibernate, SOAP, WSDL, and Spring.
• Participated in tasks related to database management, web service integration, and performance optimization. Delivered scalable, secure solutions that meet corporate client expectations, with a focus on streamlining approval processes for offers.

Kuzey Yıldızı - Hardware Buy-Sell Project

• Additionally, worked on the end-to-end integration of the Hardware Buy-Sell project into the Kuzey Yıldızı platform. This integration enabled digital management of hardware purchasing and selling processes.
• Developed tools for system management of buying and selling hardware, allowing users to handle all transactions through a single platform.