Most GenAI demos look impressive — until data protection becomes a blocker.
Suddenly, you’re dealing with external APIs, unclear data flows, and compliance risks that slow everything down or stop projects entirely.
But what if you could build GenAI systems without any of that?
In this hands-on JCON EUROPE 2026 workshop, “Building Secure, Self-Hosted RAG Systems in Java“, you’ll explore how a fully local, self-hosted RAG system can be implemented — using Java and technologies you fully control.
No external dependencies. No black boxes. No compromises on data protection.
What You’ll Walk Away With
✓ A clear understanding of how to design GenAI architectures without relying on external APIs or cloud services
✓ Insights into building and operating a local, self-hosted RAG setup in Java
✓ Practical experience with Java-based tools like Vaadin, EclipseStore, and JVector
✓ The ability to keep sensitive data inside your own infrastructure while still enabling powerful AI features
✓ Proven patterns you can apply to move GenAI projects forward — without compliance headaches
Learn from a Security-Focused Expert
Sven Ruppert brings nearly 30 years of experience across industries including banking, aerospace, and international organizations such as the United Nations and the World Bank. Today, his focus is on application security — bringing a perspective that goes far beyond implementation and showing you not just how to build RAG systems, but how to build them securely and responsibly.
If data protection has been holding you back from using AI, this workshop gives you a clear path forward.
Go One Step Further: Simplify Your Entire Data Stack
If your architecture feels overloaded with caches, search servers, and additional data services, you’re not alone. In his workshop “Caching and Beyond – Smarter Data Processing with Java”, Christian Kuemmel shows how to reduce complexity at the core — simplifying your data architecture, lowering infrastructure costs, and improving performance using a clean, Java-centric approach.
Instead of adding more tools, you’ll learn how to build systems with fewer moving parts — systems you fully understand and control.
Both sessions focus on the same core idea: building systems you fully understand and control — whether it’s secure AI or efficient data processing.
Secure your seat today – spaces are limited, and this one will move fast.
