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Java Champion 
Google Dev Expert Docker Captain 
Oracle ACE Pro Senior Technologist & Architect.
Community Builder. Speaker.
I build complex, business-critical solutions that work in practice, and speak globally about cloud, architecture, AI, and security.
Helping teams design and build business-critical systems – cloud architecture, modernization, secure platforms, and delivery pipelines that scale and last.
Engaging talks and keynotes worldwide on cloud, architecture, AI, and security. Hands-on workshops and deep-dive training.
Lead organiser of Google Developer Group (GDG) Cloud Oslo. Working with GDGs and JUGs worldwide to grow and connect developer communities.
What happens when a JSON response contains more fields than your DTO declares? The answer depends on your JSON provider. A look at the defaults for JSON-B, Jackson, Quarkus, and Spring when consuming an API with the MicroProfile REST Client – with the official docs to back each one up.
A practical look at Jakarta Expression Language as a small in-process policy engine – replacing a handwritten predicate parser with `jakarta.el.ELProcessor`, then hardening evaluation with a resolver whitelist and timeout.
A practical look at RFC 9457 Problem Details for HTTP APIs in Jakarta EE – a hand-made ProblemDetail + ExceptionMapper approach, the Zalando Problem library, and a short note on Quarkus and Spring.
