At Adesso SE, I developed Java 21 master data and integration microservices for SOKA-BAU, working directly with the client in Germany. I owned API contracts and integration patterns, and improved platform resiliency with a reusable retry framework and containerized integration tests.
As a freelance consultant, I led the renewal of Garanti BBVA's Swift payment transaction system, migrating legacy flows to Java microservices with 90%+ test coverage. I also contributed to lending platform transformation at TEB Bank / Amaris and built Kafka-based systems for Turkcell and BBVA Spain.
At BNP Paribas Cardif, I built and optimized a commission calculation engine and developed partner sales data ingestion and call-center CRM services. Since relocating to Berlin, I've been building personal backend projects with Java 21, Spring Boot, and Kafka.

