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This is another event from the "All in Kubernetes" event series. This group is focused on using Kubernetes for everything. All in Kubernetes. Data, databases, AI, ML, and all kinds of stateful workloads on Kubernetes and Talos. *** **Schedule:** 6:00-6:30pm - Open doors, pizza, drinks & networking 6:30-7:15pm - (Em)Powering Postgres with Talos and Simplyblock - [Chris Engelbert](https://www.linkedin.com/in/noctarius/?utm_source=luma), Simplyblock 7:20-8:05pm - How Talos Makes It Easier To Build a Cluster Management Platform - [Utku Özdemir](https://www.linkedin.com/in/utkuozdemir/?utm_source=luma), Sidero Labs 8:05-8:45pm - Drinks & Networking **​Who Should attend:** Anyone interested in talking and learning about Data, AI and Stateful workloads on Kubernetes and Talos. ​ **When & Where:** May 27th, 2026, 6:00pm Antler office, Jägerstraße 32, 10117 Berlin Sponsored by [Sidero Labs](https://www.siderolabs.com/), [simplyblock](https://simplyblock.io/) and [Antler](https://www.antler.co/)

Bist du bereit für einen Abend voller Geheimnisse, Täuschung und spannender Diskussionen? Am Mittwoch treffen wir uns zu einem neuen Mafia–Werwolf-Spielabend. Finde heraus, wer im Dorf die Wahrheit sagt – und wer heimlich zur Mafia oder zu den Werwölfen gehört. Ein Blick. Ein Verdacht. Eine Abstimmung. Und plötzlich ist jemand… raus. ⏰ Beginn: 18:00 Uhr 📍 Ort: Café Chagall 💰 Spende ab 5 € Egal ob Anfänger oder erfahrener Spieler – alle sind willkommen. Bring gerne Freunde mit und tauche ein in eine Nacht voller Intrigen, Strategie und Spaß. ‼️ Wichtiger Hinweis: Wir spielen die ursprüngliche Version von Werwolf/Mafia

**Bob on Tour – IBM Bob live erleben 💙** Wie fühlt sich ein agentischer Coding Assistant im echten Entwicklungsalltag an? Bei **Bob on Tour** kannst Du IBM Bob gemeinsam mit Expert:innen hands-on ausprobieren. In einem eintägigen, technisch fokussierten Format arbeitest Du an realistischen Coding-Aufgaben, von geführten Labs bis zur Anwendung auf eigene Use Cases. Dabei lernst Du, wie Bob Entwicklungsworkflows ergänzt, Codebasen verständlicher macht und mehrstufige Aufgaben unterstützt. **Das nimmst Du mit:** ✅ Sicherer Umgang mit den wichtigsten Bob-Funktionen ✅ Praktische Erfahrung mit agentischer Coding-Unterstützung ✅ Impulse für reale fachliche und technische Problemstellungen 👉 **[Jetzt anmelden und IBM Bob live erleben](https://luma.com/5g0x9318)**

Bist du bereit für einen Abend voller Geheimnisse, Täuschung und spannender Diskussionen? Am Mittwoch, den 22. April treffen wir uns zu einem neuen Mafia–Werwolf-Spielabend. Finde heraus, wer im Dorf die Wahrheit sagt – und wer heimlich zur Mafia oder zu den Werwölfen gehört. Ein Blick. Ein Verdacht. Eine Abstimmung. Und plötzlich ist jemand… raus. 📅 Datum: Mittwoch, 22.04 ⏰ Beginn: 18:00 Uhr 📍 Ort: Café Chagall 💰 Spende ab 5 € Egal ob Anfänger oder erfahrener Spieler – alle sind willkommen. Bring gerne Freunde mit und tauche ein in eine Nacht voller Intrigen, Strategie und Spaß. ‼️ Wichtiger Hinweis: Wir spielen die ursprüngliche Version von Werwolf/Mafia

Join us for an evening on the practical side of AI agents. We'll dig into context engineering and why relevance matters more than prompt tricks, then look at what it takes to run autonomous agents safely alongside humans. Food and drinks provided — stick around after for networking. ✍️ RSVP asap as capacity is limited so grab your spot asap! 📅 **Date and Time** Wednesday, May 27, 2026 from 18:00-20:45 📍 **Location** [EBCONT office, beyond Quartier Heidestrasse, 34, 10557 Berlin](https://maps.app.goo.gl/aQGPgteqhQ2yrmx96) 📝 **Agenda** 18:00 – Doors open, arrivals and check-in 18:20 – Welcome note by EBCONT 18:30 – **Agent Builder Hope is not a strategy — relevant context for data driven agents** by Anderson Queiroz — Elastic *What are agents and context engineering? And why we think the "center of gravity" for context engineering is much more about relevance and your data than only prompts and memory management.* 19:00 – Q&A & quick break 19:15 – **Adapting to AI in Security** by Jenny Pinheiro — Tines *Best practices for autonomous AI and human interaction in the context of workflows.* 19:45 – Pizza, drinks & networking \*\*\* Invite your friends and join us for an evening of learning and networking with fellow engineers and speakers! Thank you to **EBCONT** for hosting and to **Tines** for teaming up with us on this one!

Bist du bereit für einen Abend voller Geheimnisse, Täuschung und spannender Diskussionen? Am Mittwoch, den 22. April treffen wir uns zu einem neuen Mafia–Werwolf-Spielabend. Finde heraus, wer im Dorf die Wahrheit sagt – und wer heimlich zur Mafia oder zu den Werwölfen gehört. Ein Blick. Ein Verdacht. Eine Abstimmung. Und plötzlich ist jemand… raus. 📅 Datum: Mittwoch, 22.04 ⏰ Beginn: 18:00 Uhr 📍 Ort: Café Chagall 💰 Spende ab 5 € Egal ob Anfänger oder erfahrener Spieler – alle sind willkommen. Bring gerne Freunde mit und tauche ein in eine Nacht voller Intrigen, Strategie und Spaß. ‼️ Wichtiger Hinweis: Wir spielen die ursprüngliche Version von Werwolf/Mafia

Welcome to the PyData Berlin May meetup! We would like to welcome you all starting from 18:00. There will be food and drinks. The talks begin around 18.30 and the doors will close at 18:45. **Make sure to arrive on time!** Please provide your first and last name for the registration because this is required for the venue's entry policy. If you cannot attend, please cancel your spot so others are able to join as the space is limited. **Host**: **GetYourGuide** is excited to welcome you to this month's version of PyData. \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* The Lineup for the evening **Talk 1: Text2SQL in the Wild — Agentic Workflows & Semantic Models on Customer Data** **Abstract**: Translating a business user's natural language question into a reliable SQL query has huge value for business analysts, but doing it accurately at scale, on messy enterprise data, for complex queries, is incredibly difficult. This talk walks through a production Text2SQL system built on four pillars: semantic models built on customer data, RAG-based semantic search, an agentic verification and correction loop for building the SQL, and an evaluation framework for the entire process. Raw schema information is not enough for text2sql to work. Rather, thorough documentation including business metrics, synonyms, and qualified example queries, are required. We'll cover how to automate this documentation pipeline by mining query logs, generating descriptions with LLMs, and organizing everything into a knowledge graph and vector search index. From there, we'll dive into the agentic flow that takes a user question and iteratively generates, validates, and fixes SQL against a live database. The agentic framework analyses syntax errors and execution results to help it fix the SQL. Participants will leave with practical takeaways on RAG architecture for structured data, agentic retry patterns, and how to think about evaluation for Text2SQL systems in production. **Speaker**: Oren Matar **Bio**: Oren Matar is a principal data scientist and algorithms developer, with a background in social sciences and Bayesian methods. He specializes in NLP and time series forecasting, as well as agentic methods for data retrieval and processing. **Talk 2: Interpreting and Communicating Statistical Models** **Abstract**: Extracting actionable insights from complex statistical models remains a challenge, as raw coefficients are often uninterpretable due to nonlinearity, interactions, or hierarchical structures. This talk introduces a unified framework for model interpretation based on the principles of the Marginal Effects project ([https://marginaleffects.com/](https://marginaleffects.com/)). We move away from internal model parameters toward quantities of interest, such as marginal effects and adjusted predictions that translate statistical output into the "natural language" of the data. We will demonstrate these concepts in Python using the Bambi interpret module, showcasing a seamless workflow for interpreting Bayesian models built on PyMC. The audience will learn how to use the four primary interpretative pillars: Predictions, Comparisons, Slopes, and Marginal Means to compute average marginal effects and visualize conditional relationships. By the end of this session, you will be equipped to turn sophisticated GLMs and multi-level models into clear, rigorous narratives that are easily communicated to stakeholders. **Speaker**: Juan Orduz **Bio**: Juan is a Mathematician (Ph.D. Humboldt Universität zu Berlin) and Principal Data Scientist at PyMC Labs. He is interested in interdisciplinary applications of mathematical methods. In particular, time series analysis, Bayesian methods, and causal inference. **Lightning talks** There will be slots for 2-3 Lightning Talks (3-5 Minutes for each) between the two main talks. Kindly let us know if you would like to present something :) \*\*\* NumFOCUS **Code of Conduct** THE SHORT VERSION Be kind to others. Do not insult or put down others. Behave professionally. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate for NumFOCUS. All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery are not appropriate. NumFOCUS is dedicated to providing a harassment-free community for everyone, regardless of gender, sexual orientation, gender identity, and expression, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of community members in any form. Thank you for helping make this a welcoming, friendly community for all. If you haven't yet, please read the detailed version here: https://numfocus.org/code-of-conduct \*\*\*

**Rust Berlin Talks** is back for another evening of talks, shared ideas, and networking. Join us to learn, share, ask, and connect. If you work with Rust professionally, use it in side projects, contribute to open source, or are simply curious to learn more, you are very welcome. **Agenda** * Doors open: 18:30 * Start: 19:00 * Talks * Open mic / lightning talks * Networking **Speakers** Egor Lebedev - Welcome and a short note from the RustRover team Wolf Vollprecht - Pixi - A cross-platform package manager written in Rust One more speaker - To be announced soon **Speaker Bios** Wolf Vollprecht is the founder and CEO of prefix.dev, where he builds open-source software supply chain infrastructure for the conda ecosystems. Core projects include Pixi (a cross-platform package manager written in Rust), rattler (crates to work with Conda packages), and rattler-build. With \~7 years in the conda ecosystem, including creating Mamba during his time at QuantStack, Wolf has a lot of experience in making package management fast, reproducible, and secure. **Open mic & future talks** We’ll reserve a few short slots for anyone who wants to share something with the group. This can be a quick idea, a project, or an experience. Slides are optional. If you’re interested in giving a longer talk at a future meetup, this is also a good opportunity to connect with the organizers. **Venue & access** Please arrive on time. We will have someone at the entrance to let people in between 18:30 and 19:15. After that, access becomes more difficult as the doors are locked and require manual opening. **Registration** The venue has limited capacity and events typically fill up with a waiting list. If you register and can no longer attend, even at short notice, please un-RSVP so someone else can take your spot. Looking forward to seeing you all!

While we are approaching the middle of the year and KotlinConf is just over - we are thrilled that Trade Republic hosts us again! So mark the date! **Line-Up:** 👉 **Lists, Sequences, and Flows: Scaling Data Processing in Kotlin without Melting Your Memory.** *by Daniela Valero* In this talk, Daniela shares her journey of meeting a major backend deadline while managing a data pipeline's memory footprint. You’ll learn how to transition from eager List operations to lazy Kotlin Sequences and jOOQ Streams (using database fetchSize chunking) to keep memory usage flat. Finally, we’ll explore using Kotlin Coroutines and Flow to introduce safe concurrency so your data processes quickly without straining your database. 👉 **The show must go on** Kotlin-based Kafka dead-lettering solution without external (system) dependencies *by Blagoja "Baki" Stamatovski* **👉 Job Market Insights from a Kotlin developer** *by* Ivan Gafurov **Speaker Bios:** 🗣 **TDB**

Join us for an upcoming in-person Lean Coffee meetup. Lean Coffee is a lightly-structured meeting format where the attendees create the agenda. Bring your management challenges; whether you're managing people, products, processes or beyond, and solve them together with peers from a diverse set of backgrounds. This event is great for anybody trying to create better ways of working and wants to share with + learn from others trying to do the same.

**Build for Everyone — Accessibility for Mobile** Flutter Berlin is hosting a joint meetup with Kotlin User Group Berlin and CocoaHeads Berlin, focused on building accessible mobile apps. **Location:** Hedwig-Dohm-Haus, Berlin We’ll cover both strategy and hands-on implementation — from understanding platform differences (Android, iOS, cross-platform) to real-world accessibility pitfalls and live testing. With: **Important:** Registration is via Luma, not Meetup. Please register here: https://luma.com/xo7d3vb4

**Berlin, let’s talk agents. 🚀** We’re bringing the local AI community together for another evening focused on the fast-evolving world of **generative AI and autonomous agents** — and how teams are turning them into practical, scalable solutions. The meetup will feature a short session on what it really takes to **operationalize AI agents**: from design and deployment to oversight, orchestration, and management in production environments. After that, the floor is yours — with plenty of time to meet other builders, exchange perspectives, and continue the conversation over food and drinks. **What to expect:** 🎤 A featured talk on building and managing AI agents in practice 👀 A closer look through live demos 🤝 Informal networking with AI practitioners, builders, and innovators 🍻 Discussions with the Berlin data & AI community over drinks and pizza Whether you’re already experimenting with multi-agent systems or just starting to explore the space, this meetup is a chance to hear how others are approaching the challenge, share ideas, and connect with peers in Berlin.

Register: https://www.eventbrite.de/e/build-smarter-ai-graphrag-generative-ai-workshop-tickets-1985345958205 Join us for a hands-on introduction to Generative AI with Neo4j at 42 Berlin. **Large language models are powerful — but without structure, they lose context fast.** **As part of the mAI ist für AI series at 42 Berlin, this workshop explores how [Neo4j](https://neo4j.com/ "https://neo4j.com/") can improve GenAI applications and reduce common challenges such as hallucinations.** In this instructor-led workshop, participants will explore how graph databases can improve GenAI applications and reduce common challenges such as hallucinations. You’ll learn key concepts including Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), GraphRAG, vector search, knowledge graphs, and AI agents. The workshop follows a **mixed format, combining short theoretical inputs with practical exercises**. Participants will work through tasks while instructors are available to support and answer questions.

We collaborate with EC2 team on another breathtaking workshop - this time the focus is Apple on AWS. If your enterprise has the urge or curiousity to run EC2 Mac instances, this is a workshop that you can't miss. Join us for an immersion day into the enterprise Apple developer ecosystem on AWS. Sessions are built around Amazon EC2 Mac instances, covering capabilities and real-world customer use cases including: CI/CD modernization with Apple Virtualization framework, accelerating iOS builds with Bitrise solutions, and cloud-based Mac developer workstations via Amazon DCV. The broader AWS and Apple developer ecosystem sessions include a deep dive into Swift for Lambda, Amplify, and the AWS SDK showing the depth of Apple's stack integration with AWS. The day wraps up with a Q&A panel with the experts behind it all in addition to a happy hour networking event at a local venue. This will be a great chance to connect with speakers, participants, and fellow attendees. Lunch and refreshments will be provided. ###### What you'll learn * Best practices and real-world patterns for running Mac infrastructure in the cloud * How to modernize macOS CI/CD pipelines * How Swift integrates with AWS Lambda, Amplify, and the AWS SDK * How to set up Mac developer workstations in the cloud with Amazon DCV ###### Who this is for * iOS and macOS developers looking to move their build infrastructure to the cloud * DevOps and platform engineers managing Apple platforms including CI/CD pipelines and developer workstations * Solutions architects evaluating or scaling EC2 Mac deployments * Anyone building, testing, or shipping on Apple platforms with AWS **When?** 27th of May\, Wednesday\,\| 09:00 \- 14:00 **Where?** AWS Office - BER 21 - Tamara-Danz-Str. 13, 10243 Berlin. **How?** [Visit the official event page](https://aws-experience.com/emea/smb/e/c259e/aws-apple-developer-workshop-berlin) to register. ❗**Registration - Read Carefully**❗ **Registration handled via AWS Team** AWS User Group is not part of the participant selection process - therefore you have to register yourself to the event via official [AWS Experience page](https://aws-experience.com/emea/smb/e/c259e/aws-apple-developer-workshop-berlin). ❗Please register with your full name at AWS Experience. ❗You need to bring your own laptop to this workshop. Make sure AWS CLI is installed. Contact us if you're not sure how. ❗A confirmation e-mail from Meetup is not relevant. **You can participate only if you receive a confirmation e-mail from AWS Experience.** \-\-\- **Additional Information** **This event is wheelchair friendly.** Help us spread the word, and invite your friends & colleagues! If you're attending with wheelchair and need assistance, please mail us: organisers@berlinawsug.de for further details. Would you like to host AWS UG Event at your company? [Register here](https://bit.ly/aws-host) Would you like to speak at AWS UG MeetUp? [Submit your topic here](https://bit.ly/aws-talk)

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** https://youtube.com/live/BltmWMH1zG0?feature=share

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

QA or the Highway is a one-day, affordable, regional, professional conference featuring real-world experience and thought leadership in the QA and testing industry. This is a ticketed event please register here: https://www.qaorthehwy.com/ Featured Keynote Speakers: **Matthew-Hope Eland** **(Wizard at Leading EDJE)** \- An AI Specialist and Wizard at Leading EDJE who is known to teach software engineering\, AI\, and data science concepts in the most ridiculous ways possible\. Matt has used machine learning to settle debates over whether Die Hard is a Christmas movie\, reinforcement learning to drive the behavior of digital squirrels\, data analytics to suggest improvements to his favorite TV show\, and AI agents to play board games and create an AI agent with the personality of a dog\. Matt is the author of "Data Science in \.NET with Polyglot Notebooks" and "Refactoring with C\#" as well as several LinkedIn Learning courses\. Matt helps organize the Central Ohio \.NET Developer Group\, runs several blogs and a YouTube channel\, has a Master’s of Science in Data Analytics\, and is a current Microsoft MVP in AI and \.NET\. **Tatyana Arbouzova** **(CEO at Innovate QA)** \- Tatyana Arbouzova is an engineering and business leader with a strong background in Quality Engineering across multiple industries\, including Big Tech\, Healthcare\, and Entertainment\. She has held leadership roles at world\-class companies such as Microsoft\, VMware\, Disney\, and The Pokémon Company International\, where she focused on building quality\-driven cultures and scaling teams to deliver high\-impact products\. With decades of experience\, Tatyana has helped organizations transform their quality practices so teams can deliver software efficiently\, confidently\, and with measurable business outcomes\. Today\, Tatyana advises software companies on adopting AI to optimize quality practices and improve how software is delivered at scale\. She is also a passionate community builder and the founder of Innovate QA\, a thriving Seattle\-based community and conference for quality professionals\.