tzdogukan

• Developed the end-to-end Build-to-Order (BTO) sales flow as part of the global blueprint -covering core logic such as configuration, availability, and order lifecycle. Additionally, delivered Turkey-specific pricing recalculation, order processing, and invoice generation workflows tailored to market requirements. • Acted as Lead Developer during the Turkey rollout, overseeing system integration, data migration, and market-specific onboarding. Compressed a 4-month delivery scope into just 1 month -achieving go-live readiness through focused coordination, hands-on implementation, and resolution of last-mile blockers. • Drove key source code improvements by decoupling monolithic sync processes into asynchronous, eventdriven workflows -resolving concurrency conflicts and significantly improving system throughput. • Diagnosed and fixed critical system inefficiencies including: ▸ Entity Framework misuse (e.g., nested virtual properties) ▸ Inefficient caching patterns causing data inconsistency ▸ Faulty message queue handling that led to system-wide delays • Redesigned the MQ interaction layer to ensure fault-tolerant, async-safe message processing -resulting in higher system uptime and better resiliency. • Championed ATDD and enforced high test coverage (unit + integration) using xUnit, NUnit, Moq, and WireMock — elevating confidence in CI pipeline quality. • Collaborated with 10+ Agile teams across multiple modules, participating in architecture reviews, solution alignment, and cross-product delivery support.

• Consulted a startup-phase Nordic sports-tech platform and led source code evaluation -identifying architecture and code quality issues across multiple services. Initiated key refactors that improved backend reliability and long-term maintainability. • Applied SOLID principles and implemented efficient caching strategies to enhance system performance and reduce technical debt in core .NET microservices. • Played a hands-on engineering role in stabilizing core services during early product adoption, reducing system faults and aligning delivery pace with startup milestones.

• Led client acquisition, requirements gathering, and full-cycle delivery of tailored .NET solutions across sports, e-commerce, and corporate domains. • Built a fitness coaching platform with membership management, performance analytics, and subscription billing using .NET Core, EF Core, and MSSQL. • Delivered an education portal for a sports academy, enabling student tracking, content publishing, and financial reporting through a custom CMS. • Developed a B2C e-commerce platform with supplier integration, product catalog, and payment workflows using .NET Core, Razor, and MySQL. • Launched a corporate promotional website with SEO-optimized front-end architecture using HTML, JavaScript, and jQuery.