Željko Kozina

Željko Kozina

Chronomill
Željko has spent over 15 years in IT, mostly consulting for banks and insurance companies, with a focus on modernising legacy systems. Along the way, he developed deep expertise in JVM-based technologies and has become a go-to voice on topics such as API design. When he's not untangling someone else's technical debt, he's happily creating his own through a growing collection of personal projects he enthusiastically starts and occasionally finishes. Željko is passionate about sharing knowledge in a way that actually sticks, which usually means keeping things practical, a little entertaining, and free of unnecessary jargon.He is a GraphQL Ambassador and a member of the GraphQL AI Working Group
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Željko Kozina
Željko Kozina
Chronomill

No Country For Old APIs. Wrapping legacy Java services as MCP tools without rewriting them.

A demo-driven session on connecting AI agents to legacy Java, REST, and SOAP enterprise systems using MCP, Spring AI, and GraphQL. It tackles real brownfield challenges—auth, tool sprawl, oversized re...
Architecture & Modernization Architecture & Modernization Conference 50 min. INTERMEDIATE