Civic Groups Berlin

Global AI Nights - Berlin

Register: [https://globalai.community/e/znq8z1dc](https://globalai.community/e/znq8z1dc) **Context · Memory · Decision Making · Skills · Physical AI** **November 18\, 2026 \| 18:00–21:00** AI is moving beyond chatbots toward intelligent agents that can understand context, remember information, make decisions, use tools and skills, and interact with the physical world. Join us for an evening of technical talks, live demos, and discussions exploring how to build the next generation of AI agents. We'll dive into context engineering, agent memory, reasoning and decision-making, agent skills and tool integration, and the emerging world of Physical AI.

Event Sourcing without ORMs – Ted M. Young

**Event Sourcing without ORMs – Ted M. Young** We are happy to host Ted Young from the bay area for a joint meetup between our user groups – JUG BB x Spring Berlin x Microservices Berlin and featured by DDD Berlin. This joint event will happen next Tuesday at 6:30 PM. Mail & WhatsApp (Questions to the Organizer) [https://linktr.ee/contact.dataduke](https://linktr.ee/contact.dataduke) JUG BB [https://www.meetup.com/jug-bb/events/317277437/](https://www.meetup.com/jug-bb/events/317277437/) Spring Berlin [https://www.meetup.com/spring-user-group-berlin/events/317275364/](https://www.meetup.com/spring-user-group-berlin/events/317275364/) Microservices Berlin [https://www.meetup.com/microservices-meetup-berlin/events/317297247/](https://www.meetup.com/microservices-meetup-berlin/events/317297247/) DDD Berlin (featured) [https://www.meetup.com/domain-driven-design-berlin/events/317328027/](https://www.meetup.com/domain-driven-design-berlin/events/317328027/) **AGENDA** 18:30 Open Doors 19:00 Official Opening 19:05 Talk – Event Sourcing: Simpler Persistence Without ORMs by Ted M. Young 20:00 Q&A \~20:30 Doors Close **TALKS** **Event Sourcing: Simpler Persistence Without ORMs** Event Sourcing is not just a different way to persist data, but a different way of thinking about data. With ORMs like Hibernate, we have to consider query performance, fetch strategies, mapping domain models to database schemas, caching, etc. With Event Sourcing, we can use a few simple patterns to build our systems: * **Commands:** user actions representing an intention, e.g., “Buy Concert Ticket” * **Events:** meaningful changes to state as a result of executing Commands, e.g., “Ticket Purchased” * **Read Models:** up-to-date views of Events, derived specifically for a particular way of looking at the data, e.g., “My Tickets”, or “All Ticket Sales” Need caching for the ticket sales report? That’s a Read Model. Display tickets for a Customer? That’s another Read Model, using the same principles to derive the desired view of state. Performance isn’t an issue, as replaying events is very fast. Even in a system with millions or billions of events, we only need to replay events related directly to a specific entity or state view. You’ll see what makes Event Sourcing a mindshift rather than just a different persistence mechanism: updates are just appends to a log, mapping objects is no longer needed, and you keep the history of changes to data, so you can always know what happened and ask questions you didn’t expect to have. **SPEAKER** **Ted M. Young** Ted M. Young is a Java technical coach and live coder. He's been in software development for over 30 years, following eXtreme Programming practices since 2000. Ted loves helping folks make their code more testable and teaches Test-Driven Development (TDD), Refactoring, Domain-Driven Design, and Event Sourcing through hands-on, shared experiences. Ted created the acclaimed "JitterTed's TDD Game" used at events and companies worldwide to help people understand the nuances and benefits of TDD in a fun way. [https://www.linkedin.com/in/tedmyoung/](https://www.linkedin.com/in/tedmyoung/) [https://ted.dev/about](https://ted.dev/about)

JUG BB: Pre-SAG Special @ JetBrains with Chris Richardson

Just before the iSAQB Software Architecture Gathering 2026 kicks off in Berlin, we're getting the community together for a special pre-SAG evening at the JetBrains office! Whether you're attending SAG or simply interested in software architecture, Java and the impact of GenAI on software delivery, you're very welcome to join us. **🎤 Chris Richardson** **Fast Outer and Inner Loops: Prerequisites for GenAI-Powered Software Delivery** GenAI coding agents have the potential to rapidly make changes. But an agent does more than edit files: it makes design decisions, runs tests, pushes changes through the deployment pipeline into production, and analyzes the results. These steps form the same two loops that human developers use: the outer change-deploy-analyze loop and the inner edit-test-analyze loop. Agents fulfill their potential only when both loops are fast. Chris will explain how architecture determines the speed of both loops and introduce six architecture and design techniques for making them faster. He'll also explore why organizations using coding agents can outgrow a monolith sooner, and the signals that indicate when it may be time to move toward microservices. **About Chris** Chris Richardson helps organizations modernize their application architectures to accelerate software delivery and enable fast, sustainable flow, a prerequisite for effectively using coding agents. He is the creator of Microservices.io, author of *Microservices Patterns* and *POJOs in Action*, and founder of Eventuate. Earlier in his career, Chris founded the original CloudFoundry.com, an early Java PaaS for Amazon EC2. He speaks internationally about software architecture and architecting for fast flow. **🎤 JetBrains** **Gleb Melnikov \| Rethinking the IDE for Coding Agents** This session explores how JetBrains is evolving the IDE for agentic development through Air. Practical examples reveal the product decisions and tradeoffs behind new developer workflows, from delegating tasks to investigating results. Attendees will learn why the IDE still matters when agents write code, and how it helps developers stay in control of the software they ship. **Speaker info:** Gleb leads product strategy for JetBrains AI across IntelliJ-based IDEs, focusing on AI coding tools that developers can trust. His work covers agentic IDE experiences, agent workflows, in-IDE agent UX, and agent evaluation. **🎤 Community Speaker** **Ricardo Romero** WARD AI: Quality Guardrails for AI Coding Agents AI coding agents can write code faster than ever, but how do we ensure that code meets our quality, architectural, and security standards without constantly supervising every change? WARD AI is an open-source CLI that automates quality gates for AI-assisted development. It integrates with coding agents such as Junie, GitHub Copilot, Claude Code, OpenCode, or Codex, enforcing project-specific rules through automated checks covering testing, code quality, architecture, and security. In this talk, Ricardo Romero will demonstrate how WARD AI moves engineering standards out of prompts and into the development workflow, providing immediate feedback after edits and progressively stricter checks before commits, pushes, and CI. The goal is to let AI agents work more autonomously while keeping developers in control of the quality of the code they ship. Project: **[https://github.com/RicardoRB/ward-ai](https://github.com/RicardoRB/ward-ai)** **📅 Agenda** **18:30** – Doors open, drinks & networking **19:00** – JetBrains session: Gleb Melnikov \| Rethinking the IDE for Coding Agents **19:30** – Community speaker – Ricardo Romero Benítez \| WARD AI: Quality Guardrails for AI Coding Agents **20:00** – Networking break **20:30** – Chris Richardson – *Fast Outer and Inner Loops: Prerequisites for GenAI-Powered Software Delivery* **21:15** – Q&A **21:30** – Networking & refreshments **22:00** – End 📍 **JetBrains Office, Berlin** A big thank you to JetBrains for hosting us! See you in Berlin! 👋

Sunday Service 10:45am

You are welcome to join Sunday services at our church location. Feel free to contact us if you have any questions.

Event Sourcing without ORMs – Ted M. Young

We are happy to host Ted Young from the bay area for a joint meetup between our user groups – JUG BB x Spring Berlin x Microservices Berlin and featured by DDD Berlin. This joint event will happen next Tuesday at 6:30 PM. Mail & WhatsApp (Questions to the Organizer) [https://linktr.ee/contact.dataduke](https://linktr.ee/contact.dataduke) JUG BB [https://www.meetup.com/jug-bb/events/317277437/](https://www.meetup.com/jug-bb/events/317277437/) Spring Berlin [https://www.meetup.com/spring-user-group-berlin/events/317275364/](https://www.meetup.com/spring-user-group-berlin/events/317275364/) Microservices Berlin [https://www.meetup.com/microservices-meetup-berlin/events/317297247/](https://www.meetup.com/microservices-meetup-berlin/events/317297247/) DDD Berlin (featured) [https://www.meetup.com/domain-driven-design-berlin/events/317328027/](https://www.meetup.com/domain-driven-design-berlin/events/317328027/) **AGENDA** 18:30 Open Doors 19:00 Official Opening 19:05 Talk – Event Sourcing: Simpler Persistence Without ORMs by Ted M. Young 20:00 Q&A \~20:30 Doors Close **TALKS** **Event Sourcing: Simpler Persistence Without ORMs** Event Sourcing is not just a different way to persist data, but a different way of thinking about data. With ORMs like Hibernate, we have to consider query performance, fetch strategies, mapping domain models to database schemas, caching, etc. With Event Sourcing, we can use a few simple patterns to build our systems: * **Commands:** user actions representing an intention, e.g., “Buy Concert Ticket” * **Events:** meaningful changes to state as a result of executing Commands, e.g., “Ticket Purchased” * **Read Models:** up-to-date views of Events, derived specifically for a particular way of looking at the data, e.g., “My Tickets”, or “All Ticket Sales” Need caching for the ticket sales report? That’s a Read Model. Display tickets for a Customer? That’s another Read Model, using the same principles to derive the desired view of state. Performance isn’t an issue, as replaying events is very fast. Even in a system with millions or billions of events, we only need to replay events related directly to a specific entity or state view. You’ll see what makes Event Sourcing a mindshift rather than just a different persistence mechanism: updates are just appends to a log, mapping objects is no longer needed, and you keep the history of changes to data, so you can always know what happened and ask questions you didn’t expect to have. **SPEAKER** **Ted M. Young** Ted M. Young is a Java technical coach and live coder. He's been in software development for over 30 years, following eXtreme Programming practices since 2000. Ted loves helping folks make their code more testable and teaches Test-Driven Development (TDD), Refactoring, Domain-Driven Design, and Event Sourcing through hands-on, shared experiences. Ted created the acclaimed "JitterTed's TDD Game" used at events and companies worldwide to help people understand the nuances and benefits of TDD in a fun way. [https://www.linkedin.com/in/tedmyoung/](https://www.linkedin.com/in/tedmyoung/) [https://ted.dev/about](https://ted.dev/about)

No Small Talk at Metis: The Divide by Jason Hickel

*Politics, economics and history. Reading in English.* Eighteen of us came together for our first discussion, on Omar El Akkad, and the conversation was so good we’re carrying it straight into the next book. This month we read ***The Divide*** by economic anthropologist Jason Hickel: a sweeping history of global inequality, from colonialism to the present day. Hickel asks why the gap between rich and poor countries keeps widening, and argues that poverty is a political problem rather than a natural one. It’s sharp, provocative and full of material to argue about, which is exactly what this club is for. Come with your questions, your objections and your own perspective. Whether you’ve finished the book, are halfway through or just want to listen in, you’re welcome at the table. The best evenings are the ones where we really disagree, kindly. **Good to know** * Free entry, just come along * The discussion is in English * Drinks and small bites at our bar, with vegan options and plant-based milks 📍 Metis Books & Café · Gleimstraße 21 · 10437 Berlin (Prenzlauer Berg) 🗓 Sunday, 15 November · 17:00

MACH DEIN BROMPTON WINTERFIT!

MACH DEIN BROMPTON WINTERFIT! Ein Winter-Meetup für die Brompton-Community Der Winter kommt! Kälte, Regen, Schnee und können unseren Fahrrädern zusetzen. Machen wir unsere Bromptons gemeinsam fit für die kalte Jahreszeit! Komm zu unserem gemütlichen Community-Treffen und lerne die Grundlagen der Winterpflege kennen. Tausche dich mit anderen Brompton-Fahrerinnen und -Fahrern aus und sammle praktische Tipps für den Winter. Ob \*\*16-Zoll- oder 20-Zoll-Brompton\*\* – alle sind willkommen! \- Grundlagen der Winterpflege \- Tipps fürs Radfahren im Winter \- Austausch mit anderen Brompton\-Fans

Software Architecture Gathering 2026: 25% Rabatt für unsere iSAQB Community! 🎉

Berlin Mobility Afterwork (Free Drink)

Welcome to the Berlin Mobility Club! 🚲🛴🚆 Are you passionate about the future of transportation, urban planning, or mobility tech? Berlin is a rapidly evolving hub for mobility innovation, and the Berlin Mobility Club is the place to connect with the minds driving this change. Whether you are an industry professional, a tech founder, or simply an enthusiast for smarter, greener cities, you have found your community.

Beyond Text: Imperfect Labels and Intent in Visual Retrieval

Visual retrieval is moving beyond text. Join us for two technical talks: teaching models to search documents by treating pages as images, including the problem of imperfect labels in training, and using intent detection to build image discovery in a fashion AI assistant. Pizza and drinks on us — stick around after for networking. **✍️ RSVP soon — capacity is limited!** 📅 **Date and Time** Wednesday, November 11, 2026 from 18:00-20:45 📍 **Location:** **[Hedwig-Wachenheim-Straße 7, 10243 Berlin](https://www.google.com/maps/search/Hedwig-Wachenheim-Stra%C3%9Fe+7+10243+Berlin?entry=gmail&source=g)** BHW Auditorium (1st floor), Zalando SE 📝 **Agenda** 18:00 – Doors open, arrivals and check-in 18:15 – Welcoming and open session 18:30 – **Teaching Models to Search Documents: What If the “Wrong” Answer Is Right?** by **[Saba Sturua](https://www.linkedin.com/in/ssturua/)**, Senior AI Research Engineer @ Elastic *How do we teach models to search PDFs with tables, charts, and complex layouts? I’ll introduce visual document retrieval and explore how larger models can help train smaller search models, including why useful answers can be mistaken for wrong ones during training. This work is part of the research behind our next generation of Jina embedding models.* 19:00 – Q&A and quick break 19:15 – **From Conversation to Visual Search: Building Image Discovery for Zalando AI Assistant** by **[Inanda Menezes](https://www.linkedin.com/in/inanda-menezes-8bba3327/)**, Principal Software Engineer @ Zalando *How can a fashion AI assistant understand a customer's intent from visual input? In this talk, we’ll explore how we built image discovery for Zalando’s Assistant, considering the intent detection to support different use cases, from finding similar products to getting fashion advice. We’ll dive into how we connect these intents to the right processing and retrieval strategies, and share the key challenges.* 19:45 – Q&A, pizza, drinks & networking \*\*\* Invite your friends and join us for an evening of learning and networking with fellow engineers and speakers! Want to speak at our next meetup? Submit your talk on **[this link](https://sessionize.com/elastic-meetups/)** and we will get in touch with you as soon as possible.

Announcement: Event Sourcing without ORMs – with Ted M. Young (JitterTed)

Our befriended groups host an event next week. * JUG BB × Spring Berlin × Microservices Berlin! Hence, here follows a short hint: 📋 Event Sourcing without ORMs 🗣 Ted M. Young (JitterTed) 📅 Tuesday, November 10, 2026 | 18:30–20:30 | Berlin 🗺 Host: TBD We're excited to see that Ted M. Young from the bay area is in Berlin. With over 30 years of software development experience, Ted will show how Event Sourcing can simplify persistence without traditional ORMs like Hibernate, using Commands, Events, and Read Models. 🎟️ Only 12 seats left across all communities! Grab yours. Register through either Meetup group: 🔗 Spring Berlin: https://www.meetup.com/spring-user-group-berlin/events/317275364/ 🔗 Microservices Berlin: https://www.meetup.com/microservices-meetup-berlin/events/317297247/ (Seats are limited, so grab yours while they're available!) We'd love to welcome members of to join in for an evening of learning, discussion, and networking. Thank you! Have a nice weekend everybody, Janek

Embodied Consent

**Embodied Consent (auf Deutsch)** mit **Kuem** für **LGBTIQA+** Kostenlos mit[ ](https://wearevillage.org/shop/embodied-consent/w20-2026/)**[Anmeldung](https://wearevillage.org/shop/embodied-consent/w47-2026)** **Lernen über Grenzen und Kommunikation** Wenn Sie noch nicht an einem Workshop zum Thema Consent im Village teilgenommen haben, ist es jetzt an der Zeit! Dieser Workshop ist sehr zu empfehlen für alle, die unser Projekt regelmäßig besuchen oder an einem unserer Workshops teilnehmen möchten. Diese Erfahrung wird Ihnen nicht nur helfen, sich in der we.are.village-Community zurechtzufinden, sondern sie wird Sie auch dazu befähigen, diese Werte in Ihr Leben zu übertragen. Sich seiner Grenzen bewusst zu sein und sein Einverständnis oder Nicht-Einverständnis auszudrücken, sind wichtige Fähigkeiten im Leben, aber wir haben nicht oft die Gelegenheit, die Fähigkeit des Einverständnisses auf die gleiche Weise zu üben wie andere Fähigkeiten, wie Singen, Sport treiben oder eine Sprache lernen. Bei Consent geht es um viel mehr als ein einfaches Ja oder Nein. Wenn wir die Zustimmung dekonstruieren, entdecken wir, wie wir unsere wahren Wünsche kommunizieren können, und hören auf, Dinge zu wählen, die wir nicht wollen. Durch Diskussionen, Bewegung und Partnerspiele werden wir Werkzeuge entwickeln, um körperliche Wünsche auszudrücken und zu verhandeln und durch praktische Übungen Grenzen zu setzen. Dieser Workshop ist für Menschen aller Körpergrößen, Geschlechter und Hintergründe offen und einladend. Es handelt sich um einen nicht-sexuellen Workshop bei dem, ohne Druck, Kommunikation und Berührung geübt werden können. Es geht genauso darum, wirklich Ja zu sagen und es auch so zu meinen, wie es darum geht, Nein zu sagen! Wenn Sie noch nicht an einem Workshop zum Thema Consent im Village teilgenommen haben, ist es jetzt an der Zeit! Diese Erfahrung wird Ihnen nicht nur helfen, sich in der we are village Community zurechtzufinden, sondern sie wird Sie auch dazu befähigen, diese Werte in Ihr Leben zu übertragen. Gemeinsam wollen wir eine auf Consent ausgerichtete Gemeinschaft mit gemeinsamen Werten aufbauen und dabei die Verantwortung des Einzelnen für die Einhaltung dieser Grundsätze betonen. Unser oberstes Ziel ist es, gesunde Beziehungen zu fördern und eine integrative Community für eine bessere, vernetzte Zukunft zu schaffen. 🔵 **Embodied Consent (in German)** with **Kuem** for **LGBTIQA+** **[Free event with registration](https://wearevillage.org/en/shop/embodied-consent/w47-2026)** **Learning about boundaries and communication**. If you have not yet attended a workshop on Consent in the Village, now is the time! This workshop is highly recommended for anyone wishing to visit our project on a regular basis, or to attend one of our workshops. This experience will not only help you navigate within the we.are.village community, but it will also equip you to carry these values into your life. Being aware of your boundaries and expressing your consent or non-consent are essential skills in life, but we don’t often get a chance to actually practice consent skills in the same way we practice other skills, like singing, playing sports or learning a language. Consent is about much more than a simple yes or no. When we deconstruct consent, we discover how to communicate our true desires and stop choosing the things we actually don’t want. Through discussion, movement and partner games, we will build tools to express and negotiate physical desires and set boundaries through the use of practical exercises. This workshop is inclusive and welcoming to individuals of all body sizes, genders, and background. This is a non-sexual workshop, and great, low pressure situation in which to practice communication and touching. It’s as much about how to truly say yes and mean it as it is about saying no! If you have not yet attended a workshop on Consent in the Village, now is the time! This experience will not only help you navigate within the we are village community, but it will also equip you to carry these values into your life. Together, we aim to nurture a consent-centered community with shared values, emphasizing individual responsibility in upholding these principles. Our ultimate goal is to foster healthy relationships and create an inclusive community for a better, more connected future.