January 2025: JobRunr in Practice & the Simple Math Behind AI

We are kicking of JUG Noord in 2026 with two inspiring speakers in Leeuwarden! So get ready for this meetup on Tuesday, January 20th.

📅 Date & Time:

• Venue opens: 16:30
• First talk starts: 17:00
• Food & drinks: Provided between the sessions

📍 Location: Tesselschadestraat 3, 8913 HA Leeuwarden

🇬🇧 Asynchronous Job Processing in Java with JobRunr by Ko Turk (CodeLab)
JobRunr is a Java library that helps developers offload their (long-running) tasks to the background asynchronously, increasing the application's performance.
In this session, we show you how to use the library with your application with live coding and discuss in depth how you can queue, schedule, or schedule a recurring background Job in JobRunr's JobScheduler class. Also, seeing that you can use a dashboard to monitor your jobs is excellent in the past or in the future.

🇬🇧 Unveiling the simple math that powers AI by Marianne Hoornenborg (KVK)
Don't let math intimidate you — simple math powers complex systems.

As a Java developer without a formal math background, I became curious about the mathematical foundations behind AI and computation. I found that intelligent systems are rooted in surprisingly simple mathematical concepts.

In this beginner-friendly talk, we’ll explore how vector computation underlies Generative AI and how floating-point precision impacts probability scores. And just for clarity, we’ll even revisit the basics of machine-level binary number representations.

Traveling through the landscape of my talk, we’ll build up to find that the math behind AI is more relatable than we’re led to believe.

About the speakers
Ko Turk is a Software Architect, Java Engineer, and Community Builder with more than 15+ years of experience in development, architecture, speaking, and building communities. Conference organiser for Voxxed Days Amsterdam. JUG leader at CodeLabJUG and Green Software Champion. Program Committee member for JFall and community reviewer for Devoxx Belgium. Works at CodeLab and is currently on assignment at Rabobank. Regular conference speaker, focusing mainly on Java and occasionally on TypeScript.

Marianne Hoornenborg is a lead in the Dutch Java community and works in the CIO Office at the Dutch Chamber of Commerce (KVK). She is passionate about making technical topics more accessible and engaging. Marianne believes learning should be investigative, inclusive, and fun. Through her talks, she aims to empower developers to grow with confidence in their careers.