Bünyamin Kocadere

Contributed to the payment systems transformation in the credit card management team, overseeing the migration of Garanti BBVA’s services for over 25 million customers from Mainframe to a scalable microservices architecture with Java and Spring Boot. Designed system and implemented high-performance gRPC and REST services capable of handling large transaction volumes. Handled backend services processing over 100k/min throughput. Improved system efficiency by over 50% in CPU and memory utilization.

Java 17, Spring Boot, Kafka, Redis, Jpa, Junit, Kubernetes, Jenkins, Microservices - Led the technical aspects of a large-scale e-commerce integration project, designing key processes to ensure optimal performance using Kafka and Redis. - Played a significant role in client negotiations and aligning project requirements with customer expectations. - Integrated APIs from various e-commerce platforms, ensuring seamless data exchange and system compatibility.

Designed and developed key account transaction processes for ISBANK International Banking transformation, covering money transfers, account management, foreign exchange, account blockage, interest calculation, and cash management. Led account-related processes in the Development Investment Bank of Turkey project, including workflow design in Camunda, user interface management, maker-checker systems, and backend development. Designed and optimized core banking batches, ensuring smooth end-of-day processes.

→ Flutter, Dart, Firebase Developed clinical mobile applications, including both customer-facing and management panels, using Flutter. Enhanced proficiency in Dart and Flutter development by leading a full mobile app project during an extended internship period.

→ C#, .Net Framework, Web Services, Mssql, Mvc Pattern, EF Gained experience in web development using .NET technologies, focusing on MVC patterns and Entity Framework. Led a code-first database design project for a new internal application, sharpening skills in database management and software development best practices.