JAVA Performance

Quarkus has grown in popularity in the last years, but what’s it really like to use it in large-scale, real-world business projects? In this session, we’ll move beyond the basics of "Hello World" to explore how to build enterprise-level applications with Quarkus efficiently. In this talk we will set up a multi-module project, incorporating integration tests and addressing the challenges with build times, while maintaining a high development velocity. Next, we’ll tackle an upgrade scenario and splitting the application into multiple microservices. Along the way, we’ll share hard-earned lessons, including what to avoid. At the end of the talk, you should have a good understanding of how to efficiently set up a “big” enterprise project with Quarkus and the confidence to get started.

In a digital world overflowing with AI-generated voices, deepfakes, and synthetic identities, one questions rises above the noise: how can we still trust anything we read or receive? When every message could be fabricated and every sender could be an illusion, authenticity becomes a battlefield. This talk dives into the cryptographic machinery that keeps that battlefield from collapsing. You will discover how asymmetric key cryptography lets us verify a senders's identity without ever touching their secrets, an how a simple pair of cryptographic keys can anchor trust in a chaotic information landscape. We will explore the elegance of elliptic-curve cryptography, the hidden dangers of weak randomness, and the looming change of post-quantum algorithms that threaten the upend everything we rely on today. If you want to understand how digital trust services in an era of manufactured reality, this is where the story begins. https://rabobank.jobs/en/techblog/signing-digital-messages-with-elliptic-curve-digital-signature-algorithm-ecdsa/

For years we’ve heard: “Java is slow.” But is it really? ​This session cuts through assumptions and benchmarks the truth. From GC pauses and heavyweight threads of the past to Virtual Threads, ZGC, GraalVM, and modern JIT optimizations — we’ll explore how Java quietly reinvented itself into one of the most optimized production runtimes in the world. ​This is not a marketing talk. It’s a performance engineering discussion backed by code, measurements, and architectural insight.