Mehmet Yagci

• Developed web applications and RESTful APIs using C# and ASP.NET Framework for Terminal Management System (TMS), enabling real-time management of 500,000+ POS terminals across Turkey • Created C# integration services to synchronize transaction data with 100% success rate and full compliance with Turkish Revenue Administration regulations

• Engineered Acumatica ERP to AnterraBI(Business Intelligence) platform integration using AWS serverless stack (SQS, Lambda, CloudWatch) and C#, enabling real-time financial data synchronization for 10+ clients • Led technical development for Acumatica ISV certification, completing 20+ compliance requirements and securing official partnership status • Automated new customer setup for Acumatica integrations, reducing implementation time from 2-3 days to minutes and increasing operational efficiency by

• Performed full-stack development for thousands of users on the core banking platform of Turkey's 4th largest bank • Developed RESTful services and web modules using: ASP.NET Core MVC 3.1, Web API, IBM Mainframe, CQRS, MediatR • Ensured code quality with SonarQube and Fortify; wrote unit tests using xUnit • Managed CI/CD pipelines using Jenkins across environments (Dev→Test→PreProd→Prod)

• Architected end-to-end web-based Tire Management System (wise-dynamic.com) for fleet operations • Designed relational databases (MSSQL) and RESTful APIs (.NET Core 3.1) for Android/iOS mobile integration • Developed business logic using C#, Entity Framework and MVC front-end components (HTML5/JS/jQuery) • Managed Agile SDLC with Azure Git, daily standups, and cross-platform issue resolution

• Developed RESTful APIs using .NET Core and Clean Architecture, focusing on scalability and maintainability • Collaborated closely with frontend and mobile teams to design API contracts and ensure smooth integration • Conducted code reviews and mentored junior developers, maintaining clean, maintainable code aligned with best practices

1. Digital Signage & Content Management Platform (Pixage) • Developed RESTful APIs using ASP.NET Core for secure content upload and management, integrated with Nuxeo for document storage. 2. Dealer Management System (DMS) – Maserati & Ferrari Turkey • Designed and maintained real-time integration between Ferrari-Maserati’s Italy HQ system and local Turkish DMS, ensuring seamless data flow for sales, service, and inventory.

• Developed and maintained an ASP.NET MVC application using C#, Razor/ASPX view engines, designing Views, Controllers, and business logic layers for a high-traffic poetry and content-sharing platform(antoloji.com) with 120,000+ daily visitors. • Improved system performance by refactoring legacy code, optimizing database queries, and implementing responsive web design (RWD) for better mobile compatibility.

Software & Integration Architecture • Developed a Hospital Information System (HIS) covering the full patient processing cycle (registration to discharge). • Designed and implemented specialized modules, including laboratory, radiology, and stock management systems. • Built the project using .NET technologies, with a C# Windows Forms frontend and a custom ORM framework at the core. • Applied Object-Oriented Programming (OOP) principles in system design and development.

Developed Windows Forms applications in C# (.NET) for the cargo sector. Wrote SQL queries and designed financial reports using Active Report.