Microsoft Office

Here we go again! The OWASP Berlin organizing team is happy to welcome you to the Wolt office at Stralauer Allee this time. Join us for an evening of knowledge sharing, networking, and discussions on all things IT Security. Whether you’re a seasoned security professional or just starting out in the field, this is a great opportunity to connect with the community and learn from experts. **The Talks** * *When Git History Lies: Commit-Date Spoofing as Malware Cover*, Sarthak Taneja * *From Prompts to Production: Finding Business Logic Failures in AI-Generated Applications at Scale*, Nohé Hinniger-Foray, Escape * *Having fun with Domains: ccTLDs, gTLDs, sTLDs, eTLDs ...*, Tim Philipp Schäfers, Mint Secure

We will be hosting our May Meetup. Thanks to Amazon for sponsoring us. Please note that you have to show sign up with your real name and show a Photo ID to the building security before entering the building. Every visitor will have their photo taken that will be printed on their paper visitor badge. This is a requirement from the building security. If you are not ok with that, please do not sign up. You can not bring a +1, everyone needs to sign up. Please only sign up if you plan to come, we will keep notes. *Excited to announce our talks:* **pg_lake: Unifying transactional and analytical data with Postgres** by Celeste Horgan, Sr. OSS Developer Advocate at Snowflake. The common wisdom goes: data is either transactional or analytical, and workloads are OLTP and OLAP-shaped to match. The reality of generating and using data is different, and often we need a bit of both. The pg_lake extension brings OLAP workloads to OLTP Postgres. This talk will explore the pg_lake extension, including how to build it, and demos of using it with modern data workloads in object storage like Amazon S3. We’ll create simple data pipelines with no ETL and high performance analytics. **I Didn't Know Postgres Could Do That!** by Robert Treat, Principal Database Engineer at AWS and PostgreSQL Major Contributor. PostgreSQL is often thought of as "The Database for DBAs", but what more and more developers are finding out is that what makes Postgres "The Worlds Most Advanced Open Source Database" is its wide array of features, many of which are really geared towards engineers building applications on top of Postgres. In this talk, we'll look at some of the features in Postgres you may not have seen in other database systems, and talk about how you can make use of those features in your applications. Queries, indexing, data types, and more will all be up for discussion as we show you examples of just what Postgres can do.

**Berlins großes Speed Dating Event (50-65 Jahre)** Hast du Lust, Singles in deinem Alter direkt persönlich kennenzulernen? Wie wäre es, wenn es ein Event gäbe, wo sich möglichst viele tolle Singles aus Berlin an einem Abend treffen? Mit Berlins großem Speed Dating Event hast du jetzt die Chance auf bis zu 12 einzigartige Dates an einem Abend! Sicher dir jetzt dein Ticket, bevor alle Tickets weg sind. [www.speeddating-xxl.de/speed-dating-berlin](www.speeddating-xxl.de/speed-dating-berlin)

🎤 **Bereit für Bühne, Begeisterung und ein bisschen Bauchkribbeln?** Dann komm zum **Clubabend der Berliner Meisterredner** – dem Ort, an dem Worte wirken und Persönlichkeit wächst! **Was erwartet dich?** Inspiration, Abwechslung und echte Bühnenmomente: Unsere Mitglieder halten mitreißende vorbereitete Reden – mal humorvoll, mal tiefgründig, aber immer authentisch. Und wenn du willst (ganz freiwillig! 😉), kannst du bei unseren **Stegreifreden** spontan selbst ans Mikro treten – perfekt, um Lampenfieber abzubauen und Kreativität freizusetzen. ✨ **Warum solltest du kommen?** Weil du hier nicht nur reden lernst, sondern auch **wertschätzendes Feedback bekommst**, das dich persönlich und beruflich weiterbringt. Und ganz nebenbei triffst du auf tolle, redefreudige Menschen mit ähnlichen Zielen. 📍 **Wo und wann?** Im Clubraum in der Trinitatis Gemeinde (1. OG Hinterhaus – durch den Hof). Unsere Treffen folgen einem klaren, motivierenden Ablauf, der dir Sicherheit und Raum zum Ausprobieren gibt. 📌 **Neugierig geworden?** Dann schau vorbei – wir freuen uns auf dich! Mehr Infos findest du in unserem Linktree (https://linktr.ee/meisterredner)

Today we are working at Moxy Ostbahnhof, a beautiful air conditioned location near Ostbahnhof with big desks, booths and available food/drinks. **Cost:** There is no payment required, but it is common courtesy to buy drinks or something from the people providing the space. If you want to chit chat with out coworkers, please check out our Telegram channel: **[https://spam-destroyer.com/check/jelly](https://spam-destroyer.com/check/jelly)** 😴 Tired of working by yourself? 🌡️ Too hot to work at home? 🍫 Do the contents of your fridge, or housework, distract you while working from home? 💻 Come join other freelancers and remote workers for coworking! ☕️ There are no membership requirements, free WiFi, some power sockets, a large desk, some affordable coffee, toasted sandwiches and drinks! ⏰ We'll be there from 11:00, but feel free to stop by any time. The venue is open in the morning too. • DO WE HAVE PERMISSION? • Yes, we have permission to use the hotel as a coworking spot. So long as we are paying customers, they are happy for us to use their location for coworking between the hours of 11:00 to 17:00. They're sometimes (but not always) quite busy and short on tables and chairs outside of those hours. • WHAT TO BRING • Whatever you need to work on your own project / tasks :) • QUESTIONS? • Join our Telegram chat group to ask any questions: [https://spam-destroyer.com/check/jelly](https://spam-destroyer.com/check/jelly) • MORE EVENTS? • To have more events, we need more organisers. If you would like to help out, please get in touch [😀](https://emojipedia.org/grinning-face/)

Join Aiven and Google Cloud for a hands-on lab to learn building data infrastructure for AI applications in production, and how to run OpenSearch in production for AI and GenAI workloads. ***IMPORTANT: Please register on* \*\*\*[HERE](https://bit.ly/4sLWiua) \*\*\**to secure your sport.*** This interactive, instructor-led workshop is designed for developers and data engineers who want to build and run real-world data pipelines using open source tools. Note: Bring your laptop, we’ll be shipping code together. Agenda: \* 5:00pm\~5:30pm: Check-in, Food, Networking \* 5:30pm\~7:30pm: Tech talks and Hands-on Workshop \* 7:30pm\~8:00pm: Q&A, wrap-up ⚡️ Workshop 1 — Foundations: Build Your Own Pipeline ​Start from scratch and assemble a complete data pipeline using Aiven services. \- Provision and manage services -Connect systems into a unified pipeline ​- Build an observability setup \- ​Query real\-time data across services using SQL ​​ ⚡️ Workshop 2 — Advanced: Real-Time Retail Streaming Pipeline ​Go deeper with a real, production-inspired use case. \- ​Design and implement a high\-quality streaming pipeline \- Work with real\-time retail data flows \- Apply best practices for scalability and reliability What you’ll learn: * Deploy and scale OpenSearch for production * Best practices for vector and hybrid search * Build efficient real-time data pipelines * Design and optimize RAG architectures ​Why attend? * Build a production-style data pipeline * Learn how to connect Kafka, ClickHouse, OpenSearch, and PostgreSQL into a working, real-time architecture. * Learn by doing and Apply proven patterns * Provision services, stream data, and run queries yourself using both UI and CLI workflows. * Walk away with practical approaches you can reuse for streaming, analytics, and observability use cases. Who Should Attend: Developer and data engineer, interested in moving from prototype to production with OpenSearch. ​ **RSVP is not enough. You must apply for a ticket here:** [https://bit.ly/4sLWiua](https://bit.ly/4sLWiua)

**IMPORTANT! Please register at** [Luma Page](https://luma.com/9svvrv99) ​Vibecoding is no longer the question. What matters is what you actually do with it. **​On May 9** at **Spiced Academy (Berlin)**, we meet to figure that out in practice — using **[Lovable](https://lovable.dev/)**. No lectures, no slides. You open the tool and start working. ​[Projector Global community](https://www.linkedin.com/company/projector-global-community/) ambassadors and mentors will guide you through the basics, help you navigate the process, and answer your specific questions. **​This event is for those who:** — already have some experience in vibecoding — want to test a tool hands-on instead of watching demos — are stuck on something specific and want a real answer ​Come with a question. Even better — submit it during registration. ​We recommend creating an account in advance so you can jump straight in. **Mentors** During the session, you’ll be supported by experienced builders and designers: * **[Vitalik Kotik](https://www.linkedin.com/in/vitali-kotick/)** — CEO & Co-Founder @Superapp, ex-Bolt Senior Product Designer * **[Yevheniia Liubchyk](https://www.linkedin.com/in/yevheniia-liubchyk/)** — Product Designer @Zoi * **[Olha Kirdiaieva](https://www.linkedin.com/in/olha-kirdiaieva/)** — UX Designer @JUPUS * **[Danilo De la Fuente](https://www.linkedin.com/in/danilo-de-la-fuente-product-manager/)** — Founder @Arma Music, Product Manager They’ll be there to help you unblock, give direction, and support your ideas in real time. **​Tool Partner — Lovable​** This event is supported by [Lovable](https://lovable.dev/) \- an AI\-powered tool for building products faster\, without getting stuck in complexity\. ​Lovable helps you turn ideas into working solutions, experiment quickly, and focus on what matters - logic, flow, and outcomes. ​Participants will receive free credits to explore the tool during the session. Learn more: [https://lovable.dev/](https://lovable.dev/?utm_source=luma) **​Venue Host​​​** Hosted by [Spiced Academy](https://www.spiced-academy.com/en) — a Berlin tech education hub focused on hands-on learning in AI, Data, UX/UI, and Product, and building a strong tech community. **Hosts**​​​ This event is organized by [Projector Global Community](https://www.linkedin.com/company/projector-global-community/) ambassadors (by [Projector Institute](https://prjctr.com/en/about)): * ​​​[Emiliia Karpiuk](https://www.linkedin.com/in/emiliiakarpiuk/?utm_source=luma) * ​​[Julia Savchuk](https://www.linkedin.com/in/yuliia-savchuk/?utm_source=luma) **​​​​Photos & Video** ​​​​Please note that we will be taking photos at this event. By attending, you agree to be photographed, and grant the organisers permission to use this footage online and for marketing purposes (e.g., on social media or our websites).

Philosophy Discussion Meetup – Exploring Life’s Big Questions Through Books Join us for an open and friendly philosophy meetup where we explore life’s deepest questions through thoughtful conversation, shared reading, and discussion. Each participant is welcome to bring a book they are currently reading and share interesting ideas or questions from it. One of our main reference books is Sophie's World, which we often use as a starting point for discussion. 🗓 What to Expect Each meeting follows a relaxed and engaging format: Welcome & Introductions (10 minutes) Brief introductions and sharing what everyone is reading. Book & Topic Sharing (20 minutes) Participants present a short passage, idea, or question from their book. Group Discussion (45–60 minutes) Open discussion based on the shared material, often inspired by Sophie's World and related philosophical themes. Wrap-Up & Social Time (15 minutes) Final reflections and informal conversation. No prior philosophy background is required—curiosity and openness are enough. 🎒 What to Bring Please bring: A book you are currently reading (optional but encouraged) One or two questions or ideas from your book A notebook and pen (optional) If you don’t have a book, you are still very welcome to join and participate. 📍 How to Find Us We meet at: Milchkaffee Kirchstraße 5, 12555, · Berlin, DE Look for a group with books and notebooks on the table Please arrive at least at max 15 min late. The Café will take the empty seats of our table after that. So if you arrive after that, you might not have a place to sit. 🤝 Group Values Respectful and open discussion No judging or “winning” arguments Everyone gets a chance to speak Different viewpoints are welcome Curiosity over certainty Whether you are new to philosophy or a long-time reader, this group offers a supportive space to think together and learn from one another. We look forward to reading, questioning, and reflecting with you.

Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin. We are usually inside and to the right. Ask the barista/bartender if you can't find us.

**Build & Learn: AI with Coffee ☕ — Build & Share** This is a monthly meetup where we focus on real things people are trying to build — from work problems to personal ideas. We’re here to help you get started, meet other builders, and share what you’ve been working on. **🟡 Part 1 — Getting Started** If you’re a beginner: We’ll walk you through how to begin (tools, ideas, simple paths) Show examples of what others are building Help you take your first step **🟡 Part 2 — Builder Showcase** If you’re already building: You can present what you’ve been working on (5–10 minutes) Share challenges and lessons learned Get feedback from the group **⚠️ Limited Spots** This is a small group on purpose. Please only sign up if you actually plan to come. **Want extra help?** If you’re feeling stuck or thinking about transitioning your career, you can book a 1:1 session 👉 *[Calendly link](https://calendly.com/lindseypeng/workflow-clarity-call)* or join the community 💬 [Discord](https://discord.gg/dPnmzcCP8w)

Welcome Sunday Socials, Members of the group and friends meet there to exchange languages and their international experience or just have a good time to meet likeminded poeple! Currently we meet at the bar Alberts Starting time is 5pm.(Until 8pm) Adress: https://www.google.de/maps?q=alberts+charlottenburg&ion=1&espv=2&bav=on.2,or.r_cp.&bvm=bv.131783435,d.bGg&biw=1366&bih=628&dpr=1&um=1&ie=UTF-8&sa=X&ved=0ahUKEw... Grüße Andrea

Hallo, es ist wieder so weit, der zweite Freitag im Mai ist diese Woche! Deshalb habe ich im Neffes draußen im Innenhof für uns reserviert. Wenn das Wetter schlecht werden sollte, haben wir die Ecke vor dem - ausgeschalteten - Fernseher für uns :-). Ich freue mich schon, euch wieder persönlich zu sehen! Und hier der übliche Ankündigungstext: Unser zweimonatliches Treffen steht wieder an! An jedem zweiten Freitag eines ungeraden Monats treffen wir Selbständige, Unternehmer und Freiberufler aus der IT uns wieder um 19:00 Uhr im Neffes. Bei einem gemütlichen Zusammensein werden wir uns über fast alle Themen unterhalten. Der Schwerpunkt liegt dabei auf den beruflichen Themen. Z. B. wie gehen andere mit den Kunden und deren Mitarbeitern um, was sind die neuesten Insider Infos von den verschiedenen Unternehmen, wie sieht es bei den anderen mit den Einsatzorten und Arbeitsbedingungen aus und vieles mehr. Es wird wie immer ein interessanter Abend mit einem umfangreichen Erfahrungsaustausch werden, der einen auch beruflich weiterbringt. Mit dem DBITS e.V. wollen wir die Anerkennung von IT-Freiberuflern in der Gesellschaft und Politik vorantreiben, dort gibt es leider noch einen sehr großen Aufhol- und Aufklärungsbedarf und damit viel zu besprechen und zu erfahren. Des Weiteren bietet uns der Verein ein breites Netzwerk an Leuten mit den gleichen Zielen und Problemen. Aber wie gesagt, das Ziel ist ein schöner, informativer Abend, es gibt kein Mitgliederzwang. Nimm teil, wir freuen uns auf dein Kommen! Viele Grüße und ich freue mich schon auf ein Treffen am nächsten Freitag!

**⚠️ IMPORTANT: REGISTRATION MANDATORY ⚠️** Registration is **REQUIRED** to attend this event. **Link: [https://lnkd.in/dSK-v3yY](https://lnkd.in/dSK-v3yY)** Your registration is subject to host approval. You must complete the registration process to receive the full event location details and confirmation of your attendance. **Please note: Without approved registration, you will NOT be able to access the event location or attend.** Join us for an exclusive Event with **[G-Research](https://www.linkedin.com/company/g-research/)**! In this interactive event, you’ll tackle maths-based brain teasers and dive into the world of quantitative finance in a relaxed, social setting. Expect a 𝗹𝗶𝘃𝗲𝗹𝘆 𝗮𝘁𝗺𝗼𝘀𝗽𝗵𝗲𝗿𝗲, 𝗰𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝘃𝗲 𝗽𝗿𝗼𝗯𝗹𝗲𝗺𝘀𝗼𝗹𝘃𝗶𝗻𝗴, and a bit of 𝗳𝗿𝗶𝗲𝗻𝗱𝗹𝘆 𝗰𝗼𝗺𝗽𝗲𝘁𝗶𝘁𝗶𝗼𝗻. Form a team of up to 4 people and compete across multiple rounds for 𝗲𝘅𝗰𝗶𝘁𝗶𝗻𝗴 𝗽𝗿𝗶𝘇𝗲𝘀. 🥂 Catering is provided so you can fully focus on the quiz and enjoy the evening. 🏆 𝗣𝗿𝗶𝘇𝗲𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲: 1st place: €250 Amazon vouchers 2nd place: €100 Amazon vouchers 3rd place: €50 Amazon vouchers 📅 𝗪𝗵𝗲𝗻: Friday, 8th May 📍 𝗟𝗼𝗰𝗮𝘁𝗶𝗼𝗻: Mitte, Berlin, Shared upon registration This event is specifically for STEM students (undergraduate, graduate, and PhD) who are about to graduate soon. 👉 Secure your spot by scanning the QR-Code or through the following link: **[https://share-eu1.hsforms.com/1GfuPr7ijQl6AKWQbD5qw-A2b8apt?utm_source=blissmeetup](https://share-eu1.hsforms.com/1GfuPr7ijQl6AKWQbD5qw-A2b8apt?utm_source=blissmeetup)** **⚡ FINAL REMINDER ⚡** **You MUST register and be approved to attend. The event location will only be visible after your registration is confirmed by the host. Link: [https://share-eu1.hsforms.com/1GfuPr7ijQl6AKWQbD5qw-A2b8apt?utm_source=blissmeetup](https://share-eu1.hsforms.com/1GfuPr7ijQl6AKWQbD5qw-A2b8apt?utm_source=blissmeetup)** *** We are **BLISS e.V.**, Berlin’s AI community connecting like-minded individuals passionate about machine learning and data science. ​​​BLISS Website:[ https://bliss.berlin](https://bliss.berlin/?utm_source=luma) ​​​BLISS Youtube:[ https://www.youtube.com/@bliss.ev.berlin](https://www.youtube.com/@bliss.ev.berlin?utm_source=luma)

We will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Practical AI for Power BI Developers A year ago, “agentic AI” was mostly hype for Power BI teams. Today, it deserves your undivided attention. For Power BI pros, there is now a real opportunity to reduce repetitive development work, accelerate delivery, and help developers do more, but only when strong DataOps practices are in place to make AI workflows effective. This session is a no-nonsense introduction to effective AI patterns for Power BI and Fabric development. Along the way, we will make sense of the growing pile of terminology, including skills, plugins, hooks, and MCP. You will see examples of how modern AI tooling can help with development tasks across Power BI and Fabric, along with the prerequisites, guardrails, and DataOps principles needed to use it responsibly. Whether you're burned out on AI hype or already using Copilot CLI daily, this session will show you the foundations that are finally making AI-assisted development genuinely useful.

**Total Eclipse of the Chart: School Redistricting Dashboards** In this presentation, we will explore the utilization of maps, sets, and SQL within a Tableau dashboard to help provide “what-if” analyses generated through the use of a mapped dashboard, providing different scenarios and the potential implications of these. While in this use case we are focused on a large school district, the concepts of utilizing existing data to explore the future impacts of modifying different geographic boundaries can be useful to many industries, balancing the mix of maps with visual analytics. **About Our Speaker** Robert Kramer is the Data Systems and State Reporting Coordinator at South Western City Schools in Grove City. He has worked there for 17 years, serving previously in the roles of Data Analyst, Programmer, and Operations Coordinator. Prior to working at South Western, he worked as a Systems Engineer at Pinnacle Data Systems in Groveport. He graduated in 2005 from The University of Toledo with his Bachelor’s in Computer Science and Engineering, and a minor in Mathematics. Robert resides in Obetz with his wife, and their 15 and 12 year-old daughters. He was also just elected to his 3rd four-year term on the Obetz City Council. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

Let's Crop!

This meetup is a beginner-friendly session introducing version control for Unity projects, with a look at three common tools: Git, Perforce, and Unity Version Control. The goal is to help you understand what version control is, why it matters for Unity development, and what options are out there. The format will likely be presentation-style, with live demos and time for questions throughout. You'll see each tool in action and learn how they fit into a Unity workflow. What to Expect: * An introduction to version control and why it's essential for Unity projects * An overview of Git, Perforce, and Unity Version Control * Demos of each tool in a Unity workflow * Tips for getting started * No prior version control experience required * Resources for continued learning All experience levels are welcome. Whether you're new to version control or already using one of these tools, this session will help you understand what each one offers. Food and drinks provided. Join us to learn more about version control options for Unity.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com