What you'll find here

Practitioner writing, no hype: platform engineering, JVM modernization (Java 25, Spring Boot 4) and rolling out AI engineering in a regulated payments environment, where "just paste it into a chatbot" is not an option. Concrete failures, concrete fixes, production numbers where I can share them.

About me

I am Head of AI at a payments fintech and the principal engineer behind its platform: a mobile payment product used by millions in Germany. Java/Spring Boot microservices on GKE, GCP infrastructure as code (Terraform), PostgreSQL, event-driven pipelines (Debezium CDC, Pub/Sub), Keycloak IAM. In payments since 2019, certified PCI DSS Assessor.

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