Istanbul, Türkiye
Sr.Software Developer and Software Architect and Team Lead with 20+ years of experience in FinTech, finance, and enterprise software projects. Strong expertise in .NET, C#,Java, Microservices, DDD, Event-Driven Architecture, and RESTful APIs. Proven background in designing scalable, high-availability systems and leading backend teams in high-traffic financial platforms. CORE SKILLS • Software Architecture • Microservices Architecture • Domain-Driven Design (DDD) • Event-Driven Architecture • High Availability Systems • Code Review & Quality Standards • Backend System Design • Performance & Scalability Optimization • Team Leadership & Mentoring • Agile / Scrum Methodologies • AI-assisted software development tools (Cursor, GitHub Copilot, ChatGPT, Claude) • LLM-assisted code generation, refactoring, and code review workflows • AI-assisted software architecture and developer productivity optimization • Stakeholder and customer communication
• Organization, coordination, and performance management of backend and architecture teams • Defining team goals, task distribution, and prioritization of engineering work • Managing professional development, mentoring, and feedback processes for team members • Tracking and reporting delivery timelines, scope, and quality objectives • Managing technical and operational communication with banks, payment service providers, PTT, and third-party stakeholders • Collaborating with product and business teams on roadmap planning and technical strategy • Managing Agile/Scrum processes, including sprint planning and retrospectives • Ensuring the managerial enforcement of code quality standards, security policies, and performance criteria • Defining, enforcing, and monitoring code review processes across teams • Leading and coordinating AI-driven initiatives focused on improving code quality, including AI-assisted code review, static analysis, and refactoring support • Designing and integrating MCP Server-based architectures aligned with Secure SDLC and compliance requirements, enabling controlled, auditable, and scalable AI tool integration within software development workflows • Actively contributing to Türkiye Kart, a national payment card initiative aiming to enable unified payments across all public transportation systems in Türkiye, through module development and governance processes • Playing a key role in the VUMS–DGTRANSIT (Visa Urban Mobility System) Gateway, actively used in approximately 50 cities across Türkiye, including the design of ISO 8583 messaging infrastructure and the development and management of Yapı Kredi Bank integrations to enable VISA card acceptance for public transportation fare payments
• Backend development for digital wallet and payment platforms • Development of high-volume RESTful APIs • Microservice-based reconciliation and financial reporting services • Performance optimization • Bank authorization processes including KFT / MTT authorization flows • EMV-compliant card transaction processing using ISO 8583 message flows (authorization, reversal, clearing, settlement) • Secure transaction handling and bank-side authorization integrations • Paycell virtual POS integration
• Bank and payment system integration projects(DBS,TOS,PF) • Development of POS and virtual POS transaction services • .NET Core-based microservice applications
• Microservices architecture transformation projects • Technologies: Elasticsearch, Redis, RabbitMQ, IdentityServer, Hangfire • Remote load services for İş Bank • Migros payment/load projects • Bank reconciliation services (Innova, Asseco, QNB) • Development of DDD-compliant enterprise frameworks • Writing modules for ATM Remote Terminal Management System (TMS) updates. • Adding new modules to EUTS and smart city technologies, optimizing existing modules.
• IoT and Industry 4.0 software projects • RFID handheld terminal development (Windows CE)(Tekfen,Ford Otosan,BSH) • Dynamic reporting and automated email systems (Eczacıbaşı Esan) • B2B software consulting and system integrations(P&G) • Wipelot platform module development (Eczacıbaşı Esan,Eker, BSH, Tekfen, Turkish Technic,TGS,Doco,Eti Maden,Ford Otosan)
• Development and enhancement of existing enterprise applications • E-commerce platform development and maintenance • Logistics and transportation management applications • Accounting and business management software modules