Istanbul, Istanbul, Türkiye
Experienced Software Engineer with a demonstrated history of working in the intelligent transport systems and services industry. Skilled in C#, ASP.NET, SQL and RF Technologies. Strong engineering professional with a BS focused in Computer Technology & Information Systems from Bilkent University.
• Architected and migrated the core wallet infrastructure to a multi-tenant architecture using .NET Core, enabling scalable and isolated support for major enterprise products like Opet Pay and Payfour (CarrefourSA). • Designed and implemented a secure Orchestration Gateway to centralize request flow, introducing advanced security layers and streamlining REST API management. • Developed a high-performance integration service for HSM (Hardware Security Module) communication, significantly reducing latency and ensuring robust security for financial transactions. • Enhanced system scalability and responsiveness by leveraging RabbitMQ for asynchronous processing and Redis for distributed caching. • Streamlined background job management and scheduled tasks through Hangfire integration, ensuring high availability for critical wallet operations. • Led performance tuning and observability initiatives using Dynatrace, proactively identifying system bottlenecks and improving overall environment stability. • Elevated product quality and maintainability by instituting rigorous code review workflows and optimizing package management processes to systematically reduce technical debt.
Ibtech Epara and Zubizu Digital Wallet Projects: Backend development in .net core platform.
• İspark/Burbak Hand Terminal Project : Developed code fixes and enhancements for inclusion in future code releases and patches in .NET Compact Framework and SQL Compact Framework. • İspark Web Site : Modified existing software to correct errors and new reports are implemented according to the client requirements. Written in ASP.NET Platform using DevExpress Component. • İspark Pay-Desk (Parking Garage) Software : Windows Forms Software written from the ground up through completion for payment system in İspark Parking Garages. Developed in .NET Framework, Built in Mono and MySql is used in local database which runs in Linux. • Biletmatik Monitor Web Site : Modified existing software for bug fixing and new developments are implemented. Additionally, SQL query optimization is made for performance improvement. Written in ASP.NET Framework using DevExpress Component. • Belbim Customer Services Desktop Program : Developed code fixes for a short period of time. Written in .NET WPF Framework and WCF Service is used for data-tier. • Belbim Customer Services Web Program: Developed code fixes for a short period of time. Written in ASP.NET Framework. • Windows Services : Written for scheduled mail notifications and scheduled SQL updates. • WCF Data Services: Written for data-tier using .NET Entity Framework for various projects. • Personnel Tracking Project : Complete development of Duali Device application. Written in .NET Compact Framework (Windows Embedded CE 6.0 Platform). • Personnel Tracking Project Web Sites: Maintained existing applications and designed and delivered new applications in ASP.NET Framework using DevExpress Component for different clients (İETT, İstanbul Otobüs A.Ş., İski A.Ş.). • RF Reader technologies: Omnikey, Duali and GemProx readers are used for MIFARE DESFire, MIFARE Classic Card implementations in various projects. • Used Team Foundation Server for version control. • E-Tuğra Project: Team Lead in User Authentication and Authorization Module.
Hospital Automation Application : Development of software runs in Motion C5 tablet. Written in J2EE Platform with ExtJS Component using Spring Framework Architecture, Hibernate ORM Framework.
.NET Application for İspark-Belbim Portal with DevEx Component.