Java User Group Switzerland
Postfach 2322 • 8033 Zürich
info@jug.ch • www.jug.ch
Events
Past events 2025
Basel 08.04.2025
Deploying to production with confidence
SPEAKER: Andres Almiray
KEYWORDS: Open Source, Security, Concept, Hands-On
How many times have we asked ourselves if it is a good idea to release to production on a Friday afternoon? Is the production software sufficiently robust and/or resilient to vulnerabilities? How can we detect and correct security problems in production? Better yet, how can we prevent such problems or attacks?
Zürich 03.04.2025
Catching Recursion by the Tail
The State of Tail Recursion Optimization in Modern JVMs
SPEAKER: Vladimir Parfinenko COMPANY: JetBrains
Transforming tail recursion into a loop is a popular optimization in functional programming languages; however, in the Java world, this transformation is shrouded in mystery.
Bern 02.04.2025
Catching Recursion by the Tail
The State of Tail Recursion Optimization in Modern JVMs
SPEAKER: Vladimir Parfinenko COMPANY: JetBrains
Transforming tail recursion into a loop is a popular optimization in functional programming languages; however, in the Java world, this transformation is shrouded in mystery.
Zürich 27.03.2025
Harnessing the Power of AI in IntelliJ IDEA
SPEAKER: Anton Arhipov COMPANY: JetBrains
KEYWORDS: AI, Tools, Product
AI-powered tools are transforming software development, but how much control do they give developers over their workflow?
In this session, we’ll explore how AI assistance in IntelliJ IDEA — through both JetBrains AI Assistant and the new Junie coding agent—supports developers in writing, understanding, and improving code.
Zürich 26.03.2025
Taming LLMs for Production and Productivity
SPEAKER: Lize Raes COMPANY: Naboo
KEYWORDS: AI, Tools, Technology, Product
Two years after ChatGPT changed the world, AI integration has become a priority for nearly every business, and most developers have used AI-powered code assistants. Yet, we are still in the 'clumsy' phase, AI-generated code and product extensions are a bit helpful but just... not good enough.
Bern 24.03.2025
«Sudo, Make Me a Sandwich!» - Live coding with AI tools
A fun live coding session, oriented on developer meetups
SPEAKER: Anton Arhipov COMPANY: JetBrains
KEYWORDS: AI, Tools, Product
AI-assisted coding promises to boost developer productivity, but how much can we actually rely on these tools? In this live coding session, we’ll put AI-powered development assistants to the test — experimenting with code completion, agentic workflows, retrieval-augmented generation (RAG), and other techniques inside IntelliJ IDEA.
Zürich 19.03.2025
Kotlin & Functional Programming
Pick the Best, Skip the Rest
SPEAKER: Urs Peter COMPANY: Xebia
KEYWORDS: Lessons learned, other Languages, Technology, Tools
Applying Functional Programming practices in your code can quickly lead to heated debates: Hard-core FP advocates strive for the hegemony of 'functions everywhere,' whereas more conservative developers want to stay far away from the abstractions and complexity they add. The question is, who is right?
Luzern 19.03.2025
Let’s Code Together
Today: Rebuild our intro-slides with modern web technologies
KEYWORDS: Hands-On, Open Source, Technology
Unfortunately, this event has to be canceled due to a lack of registrations.
Bern 13.03.2025
From Many to One
Unsere Migration zu einem Monolithen
SPEAKER 1: Leotrim Zulfiu COMPANY: Vontobel
SPEAKER 2: Don Kodiyan COMPANY: dsi engineering ag
KEYWORDS: Architecture, Lessons learned
Microservices sind der "heilige Gral" der modernen Software-Architektur – doch was, wenn sie mehr Probleme als Vorteile schaffen?
St. Gallen 11.03.2025
Mutants to the rescue
How effective are your unit tests?
SPEAKER: Paco van Beckhoven COMPANY: Hexagon
KEYWORDS: Open Source, Testing, Tools
We write tests to tackle bugs, verify functionality and to ease maintenance.
Using code coverage as our metric we might deem ourselves safe and our tests flawless.
But how can we be sure that our tests are okay? The fact that tests cover the code doesn't imply the code is working correctly.
A missing assertion can be an opening for a plethora of bugs!
Zürich 04.03.2025
Troubleshooting Memory and Performance Issues in Production
SPEAKER: Jonatan Kazmierczak COMPANY: Zürcher Kantonalbank
KEYWORDS: Architecture, Lessons learned, Methods, Performance
Long garbage collector pauses observed in a productive Java application were initially seen as isolated events, but further investigation uncovered deeper, systemic issues. By leveraging the tools and features available in the JVM, JDK, and the operating system, along with detailed data analysis, the root causes were successfully identified and eliminated.
Basel 18.02.2025
Die täglichen Herausforderungen im Agilen Entwicklungsumfeld
Denk du doch mal meine Gedanken
SPEAKER 1: Nadine Broghammer COMPANY: ERNI
SPEAKER 2: Matthias Cullmann COMPANY: Baloise
KEYWORDS: Communication, Teamwork, Agile, Lessons learned
Business, Projektleitung, Architektur, Design und Entwicklung haben unterschiedliche Sichtweisen auf Lösungen und Probleme. Zum Glück arbeiten wir jetzt im agilen Modus und die Führungscrew weiss, was sie will, dann verstehen wir uns doch alle bestens, oder?
Zürich 13.02.2025
A Java 8 lambda and JobRunr is all you need for distributed (batch) processing!
SPEAKER: Ronald Dehuysser COMPANY: JobRunr by Rosoco BV
KEYWORDS: Architecture, Cloud, Open Source, Product
Are you struggling with CPU-intensive tasks, high I/O work, or do you need to schedule background jobs without blocking the rest of your system? I often see teams building a scheduling solution themselves, severely underestimating the complexity of running jobs asynchronously. A costly endeavour, especially with a simple, free and open-source solution readily available.
St. Gallen 12.02.2025
A Java 8 lambda and JobRunr is all you need for distributed (batch) processing!
SPEAKER: Ronald Dehuysser COMPANY: JobRunr by Rosoco BV
KEYWORDS: Architecture, Cloud, Open Source, Research
Are you struggling with CPU-intensive tasks, high I/O work, or do you need to schedule background jobs without blocking the rest of your system? I often see teams building a scheduling solution themselves, severely underestimating the complexity of running jobs asynchronously. A costly endeavour, especially with a simple, free and open-source solution readily available.
Bern 11.02.2025
A Java 8 lambda and JobRunr is all you need for distributed (batch) processing!
SPEAKER: Ronald Dehuysser COMPANY: JobRunr by Rosoco BV
KEYWORDS: Architecture, Cloud, Open Source, Product
Are you struggling with CPU-intensive tasks, high I/O work, or do you need to schedule background jobs without blocking the rest of your system? I often see teams building a scheduling solution themselves, severely underestimating the complexity of running jobs asynchronously. A costly endeavour, especially with a simple, free and open-source solution readily available.
Basel 30.01.2025
Resilienz im Alltag der Software-Entwicklung
SPEAKER: Sonja Kuperschmid COMPANY: CZO Olten - Coaching Zentrum Olten
KEYWORDS: Lessons learned, Out of Scope
Betriebliches Mentoring entwickelt sich zunehmend zu einem Schlüsselinstrument für die Bewältigung moderner Arbeitsherausforderungen. In einer von Digitalisierung und flexiblen Arbeitsmodellen geprägten Arbeitswelt sehen sich Mitarbeitende mit der permanenten Verfügbarkeitserwartung, verschwimmenden Grenzen zwischen Berufs- und Privatleben sowie steigender Arbeitskomplexität konfrontiert.
Zürich 29.01.2025
Die Architektur zuverlässiger KI: RAG
SPEAKER: Robert Glaser COMPANY: INNOQ
KEYWORDS: AI, Architecture, Concept
Eine KI, die Dein Unternehmen nicht kennt, ist wie eine brillante Strategin, die nach Jahren im Koma aufwacht und feststellt, dass sie noch nie von Deiner Firma gehört hat. Kannst Du von ihr Insider-Tipps erwarten?
Bern 28.01.2025
Die Architektur zuverlässiger KI: RAG
SPEAKER: Robert Glaser COMPANY: INNOQ
KEYWORDS: AI, Architecture, Concept
Eine KI, die Dein Unternehmen nicht kennt, ist wie eine brillante Strategin, die nach Jahren im Koma aufwacht und feststellt, dass sie noch nie von Deiner Firma gehört hat. Kannst Du von ihr Insider-Tipps erwarten?
Online 22.01.2025
Die goldenen Regeln
Wie vermiese ich Neulingen den Einstieg in mein Projekt?
SPEAKER: Andreas Monschau COMPANY: Haeger Consulting
KEYWORDS: Methods, Agile, Lessons learned
Software-Entwicklung ist hart und unfair. So soll es auch bleiben. Nun kommt jemand neues in dein Team – und du sollst dich um ihn kümmern! Einfach willst du es dieser Person nicht machen: Du hast gelitten, alle haben gelitten, warum sollte es jetzt anders sein?
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About
JUG Switzerland aims at promoting the application of Java technology in Switzerland.
JUG Switzerland facilitates the sharing of experience and information among its members. This is accomplished through workshops, seminars and conferences. JUG Switzerland supports and encourages the cooperation between commercial organizations and research institutions.
JUG Switzerland is funded through membership fees.
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