Karakun

Our booth isn’t ready. Our team is.

At #JCON2026 in Cologne 🇩🇪 — slightly chaotic start: roll-ups did not make it. 😢

But:
– great #Java & #SoftwareEngineering conversations
– our #JCON survey
– Basler Läckerli 🍪 + stickers

Plus:
🎤 Tamari (Thu 12:55): her first-ever talk on Accessibility
🎯 @martinfrancois@fosstodon.org and Iryna: Mentorship Hub Talk

👉 If you’re at #JCON come by our booth!

Beyond Cologne:
🇧🇪 @madmas@jit.social at #OCX with @ixchelruiz@mastodon.social
on #CRA, #NIS2, #DORA for senior Java engineers

#Karakun

The AI testing train moves on. Next stop: Zurich.

After a great discussion at the @jugch@ijug.social meetup in Bern, Mike Mannion brings “AI broke my test suite” to Zurich — a talk about statistical #testing for LLMs in #Java.

Sneak Peek:

→ probabilistic testing for LLMs
→ acceptable failure rates
→ resilient AI testing strategies

🎤 AI broke my test suite
📅 21.05.2026
🕕 18:15–19:30h
📍 PH Zürich, Room E071

🎟️ Registration: https://www.jug.ch/html/events/2026/testing-with-punit_zh.html

#AI #LLM #SoftwareTesting

Try ideas.
Build together.
Learn together.

Just code. #OpenSource. Community.

At the #HackergartenBasel, developers and tech enthusiasts come together to experiment, collaborate, and work on real projects.

📅 May 20, 18:00–21:00
📍 Karakun AG, Basel
👉 https://www.meetup.com/hackergarten-basel/events/313616130/

Hosted by @ixchelruiz@mastodon.social with contributors from the local developer community joining as well.

🍕 Pizza & drinks are on us.
You bring the curiosity.

#DeveloperCommunity #Basel

LLMs force engineering teams to rethink one of the core assumptions of software testing: deterministic outcomes.

At today’s @jugch@jvm.social meetup in Bern, senior software engineer Mike Mannion talks about statistical testing for LLMs in Java using PUnit.

Sneak Peek:

→ probabilistic testing
→ acceptable failure rates
→ resilient AI testing strategies

🎤 AI broke my test suite
📍 Bern
🕕 18:00–19:15h

🎟️ https://www.jug.ch/html/events/2026/testing-with-punit_be.html

#AI #LLM #Java #SoftwareTesting

🏍️ Motorrad, 🚐 Campervan-Projekt und 🌱 Garten – und jetzt neu bei #Karakun:

Daniel Tiefenauer startet als Senior Software Engineer.

Nach Stationen als Software Engineer, Architekt und Tech Lead hat er sich bewusst für ein Umfeld entschieden, in dem #ContinuousImprovement, Respekt und Vielfalt mehr sind als Buzzwords.

Seine Ziele:

👉 neugierig bleiben
👉 Wissen teilen
👉 gleichzeitig Mentor und Lernender sein

Willkommen im Team, Daniel. 🚀

#SoftwareEngineering #TechCulture

No tickets. No backlog. No pressure.

Just code. Real projects. #OpenSource.

At the #HackergartenDortmund, developers and tech enthusiasts work together on real projects — no agenda, just building together.

📅 May 5, 18:00–21:00
📍 Digitale Werkbank, Dortmund

👉 https://www.meetup.com/de-de/hackergarten-dortmund/events/312845285/

With Timothée Clolus with contributors like @madmas@jit.social, @claudine@ruhr.social and possibly @giftkugel@ruhr.social.

Pizza & drinks are on us. You bring the ideas.

#DeveloperCommunity #Dortmund

No pitch. No slides. No pressure.

Just code. Community. Open Source.

At the #HackergartenBasel, developers and tech enthusiasts work together on real #OpenSource projects — no agenda, just building together.

📅 April 29, 18:00 - 21:00
📍 Karakun office, Basel

Registration: https://www.meetup.com/hackergarten-basel/events/313616011/

With contributors like @martinfrancois@fosstodon.org, @ixchelruiz@mastodon.social and @aalmiray@mastodon.social. Pizza & drinks are on us. You bring the ideas.

#DeveloperCommunity #Basel

Accessibility can feel like standing at the start of a marathon 🏃

The distance looks huge.
And many teams don’t know where to begin.
Especially with the European Accessibility Act approaching.

Start small:

1️⃣ learn the basics (#WCAG)
2️⃣ improve things step by step
3️⃣ share what you learn

Our UX expert Cindy Hürlimann explains how to get started in her latest #DeveloperHub article:

👉 https://dev.karakun.com/2026/03/06/Accessibility.html

#Accessibility #InclusiveDesign #UX

What does it take to bring #NLP from research into real-world applications?

We’re supporting #SwissText2026 as a Silver Sponsor — a key conference for #TextAnalytics and applied #AI in Switzerland.

📅 June 10, 2026
📍 University of Zurich, Oerlikon campus

Keynotes include Prof. Dr. Alexandra Birch (University of Edinburgh / Aveni.ai) and Dr. Valentina Pyatkin (ETH AI Center).

Looking forward to exchanging ideas on semantic search and real-world use cases.

👉 https://karakun.com/en/karakun-supports-swisstext-2026/

The AI testing train is nearing its destination. Next stop: #Lucerne.

After great discussions at the @jugch@ijug.social meetups in Basel, Bern and Zurich, Mike Mannion brings “AI broke my test suite” to Lucerne.

Sneak Peek:

→ probabilistic testing for LLMs
→ acceptable failure rates
→ resilient AI testing strategies

🎤 AI broke my test suite

📅 03.06.2026
🕕 18:15–19:30h
📍 Hochschule Luzern – Wirtschaft, Room 4.04

🎟️ Registration:
https://www.jug.ch/html/events/2026/testing-with-punit_lu.html

#AI #LLM #Java #SoftwareTesting #JUnit #PUnit

Elasticsearch 7 → 8 is not a simple upgrade.

It’s a migration.

New clients, #SecurityByDesign and API changes make this more complex than many teams expect — we’ve seen it firsthand.

We break down what really changes on the Karakun #DeveloperHub when moving from #Elasticsearch 7.17 to 8.19, including client updates, mappings and error handling.

Practical guide (incl. code & pitfalls):
https://dev.karakun.com/2026/03/26/elasticsearch-7-to-8-migration-guide.html

#Java #SoftwareEngineering #TechMigration

What do #SoftwareEngineering, #AI, and Norse mythology have in common?

#Jfokus2026.

Our expert Dr. Iryna Dohndorf shares key insights from Stockholm — from #Java trends to the growing impact of AI and the importance of community-driven formats like the Mentoring Hub.

A great example of how modern software engineering is shaped: through exchange, real-world experience, and global developer communities.

👉 Read more: https://dev.karakun.com/2026/04/22/Jfokus2026.html

#DeveloperCommunity #Karakun

Testing AI systems? The old rules no longer apply.

Non-deterministic systems cannot be assessed using deterministic methods. “Pass/Fail” is too narrow.

At #SwissTestingDay, Mike Mannion reflected on key themes:

➡️ probabilities over binary results
➡️ system behaviour over isolated outputs
➡️ testing as a strategic discipline

He also points to approaches like #PUnit for evaluating such systems.

Conference insights: https://dev.karakun.com/2026/04/02/Swiss-Testing-Day.html

#AITesting #SoftwareEngineering #QualityEngineering

KI ist längst Standard im #SoftwareEngineering.
Aber nicht jede Anwendung ist sinnvoll.

Wir sehen aktuell oft:
Mehr KI → mehr Output → mehr Prüfaufwand → höhere Kosten.

👉 Deshalb wird aus KI-Nutzung schnell eine Architekturfrage.

@madmas@jit.social zeigt in seiner neuen Kolumne bei Inside IT, warum nachhaltige Software vor allem eines braucht: bewusste Entscheidungen.

🔗 https://www.inside-it.ch/schlicht-und-einfach-nach%C2%ADhaltige-soft%C2%ADware%C2%ADentwick%C2%ADlung-im-ki-zeitalter-20260407

Wo lohnt sich KI für euch – und wo bewusst nicht?

#KIStrategie #Nachhaltigkeit

💻 Laptop. Idee. Community.

Der Rest passiert im #Hackergarten.

Am 18. März trifft sich die #OpenSource-Community wieder bei Karakun in #Basel um gemeinsam an Projekten zu arbeiten – ohne Pitch, ohne Sales, ohne Deadline-Druck.

Ob du regelmässig zu Open Source beiträgst oder an einer neuen Idee tüftelst: Hier geht es um gemeinsames Bauen, Austausch und echte Projekte.

📅 18.03.2026
⏰ 18:00–21:00
📍 Basel

👉 Anmeldung: https://www.meetup.com/hackergarten-basel/events/312253273/

#OpenSource #DeveloperCommunity #HackergartenBasel

We’ll be at #JCON2026 in Cologne 🇩🇪

Meet us at our booth to talk about #AI and the #CyberResilienceAct – and how these topics show up in real-world software development.

We’re also running short interviews with attendees and bringing some Basel treats and stickers along 🍬

🎤 Talk by Tamari Gogebashvili
“From a Workshop to a Wake-Up Call: My Journey into Accessibility”

📅 Thursday, April 23
⏰ 12:55–13:15
📍 Cinema 6

Come by and say hi 👋
https://karakun.com/en/karakun-at-jcon-europe-2026

If you cannot test it reliably, you cannot scale it responsibly. 💥

Non-deterministic behaviour challenges classical #SoftwareTesting assumptions.

Same input does not always mean same output — especially in #LLM-based systems.

Tomorrow in Basel, Mike Mannion speaks at @jugch@ijug.social about using #PUnit to extend #JUnit with statistical testing approaches.

📍 03 March | 18:15 | Markthalle Basel
https://www.jug.ch/html/events/2026/testing-with-punit.html

See you there.

#SoftwareTesting #EngineeringExcellence

How do you build AI systems that remain reliable under real-world conditions?

Next week at #SwissText2026, Mike Mannion and Olmo Barberis will explore this question from two different angles:

🎤 Probabilistic testing for stochastic #NLP systems with #PUnit (Mike)

🎤 Modern #OCR in resource-constrained environments (Olmo)

Mike and Olmo will be happy to discuss your challenges and use cases.

📅 June 10, 2026
📍 University of Zurich, Oerlikon Campus
👉🏻 https://www.swisstext.org

#SwissNLP #AI #LLM