Microsoft Excel 2010

📆 Agenda * 19:00 Welcome to the PUB (Python Users Berlin) – setting up * 19:15 Main talk * 20:00 Lightning talks * 20:30 Social gathering 🎙 Main talk by [Sam Bail](https://www.meetup.com/de-DE/members/57634242/): PySpark PySpark is a powerful library that brings Apache Spark’s distributed computing capabilities to Python, making it a key tool for processing large-scale data efficiently. In this talk, data engineer and analyst Sam Bail provides a structured and hands-on introduction to PySpark, starting with an overview of Apache Spark, its architecture, and its ecosystem, such as Databricks. Learn about Spark’s core concepts, such as the DataFrame API, transformations, lazy evaluations, and actions, before setting up a lab environment and working with a real dataset. Plus, gain insights into how PySpark fits into a broader data engineering ecosystem and best practices on running PySpark in a production environment. 👩‍💻 About [Sam Bail](https://www.meetup.com/de-DE/members/57634242/) Data engineer and engineering leader with 10+ years building platforms and teams across healthcare, marketplaces, and data infrastructure at NYC tech startups. I teach data engineering courses on LinkedIn Learning and O’Reilly, focused on making complex topics accessible to everyone. I also founded Bright Nights Social, an alcohol-free nightlife community that’s produced 100+ events across NYC. You’ll probably find me on a dance floor or running around Berlin this summer (training for the Berlin marathon). 📚 Resources * [Apache Spark](https://spark.apache.org/) * [PySpark](https://spark.apache.org/docs/latest/api/python/index.html) * [PySpark DataFrame API](https://spark.apache.org/docs/latest/api/python/getting_started/quickstart_df.html) ⚡️ Lightning talks We would like you to give a lightning talk (shorter than 10 minutes) about what you are doing with Python. 📍This will be a face-to-face meeting.

Der politische Diskurs ist für alle diejenigen, die politische und gesellschaftliche Themen verfolgen und sich gerne darüber austauschen wollen. Wir alle wissen, dass der Vorteil einer Demokratie gegenüber autoritären Systemen darin besteht, dass Meinungen geäußert und Kritik geübt werden kann - so let's do this! Jedesmal steht ein neues, eher generelles Thema im Zentrum, über das wir uns respektvoll austauschen wollen. Im kommenden Abend geht es um die von der Rentenkommission eingereichten Vorschläge zur Rentenreform. Interessante Informationsquellen für: [Nationale_Politik](https://www.deutschlandfunk.de/podcast-106.html), [News_aus_Wirtschaft](https://open.spotify.com/show/0MqROiCw2Vl0aVqxWdPjRC?si=dioN4162TqytZm210rXpYw), [Internationale_Nachrichten](https://ground.news/) **WhatsApp Gruppenchat**: Regt dich ein Politiker / eine Argumentationslinie auf? Hast du einen Podcast gehört, den du unbedingt teilen und mit anderen besprechen willst? Möchtest du aktiv bei der Themenwahl unserer Diskussionsabende teilnehmen? Es gibt eine Whatsappgruppe. Sprich mich gerne auf einem Event an, dann füge ich dich hinzu. Wir freuen uns auf deine Ansichten! Photo by iStockphoto/Thinkstock

Join us for the **Berlin DevOps Summer Meetup**: our last edition before the summer break! We're excited to be hosted by **Parloa** for an evening of interesting talks, discussions, and networking. There will be food and drinks provided, and plenty of time to connect with fellow DevOps enthusiasts. **📌 Please register at least 24 hours before the event.** We need to share the attendee list with the Parloa office in advance, and **spots are limited**. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Agenda** 18:30 Open Doors, Networking with Food and Drinks 19:00 Welcome words by Parloa and BLN DevOps team 19:25 **Running K8s with AI: Automating** **the SRE Lifecycle with Grafana MCP and GitLab** 19:50 **The Pipeline Was Green — AI Agents and CI Trust** 20:15 Short Break 20:30 **Managing Uninvited Guests: Securing Open Source Dependencies** 20:55 Networking 21:30 Closing ➡️ Interested in hosting an event? Fill out our [Call for Hosts](https://docs.google.com/forms/d/e/1FAIpQLScBpga8Yp-QAQt2lGskZWOThaKyQ_MbMbZaNcklgeXxqr5Vrg/viewform?usp=sf_link) and let's set up a meeting. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- *Christoph Ebeling* **Running K8s with AI: Automating** **the SRE Lifecycle with Grafana MCP and GitLab** What does it look like to run 30+ microservices, 8 databases, and a Kafka cluster almost entirely through AI agents? This talk walks through a practical demo of automating the full SRE lifecycle: from incident investigation to deployment validation, using Grafana MCP and the GitLab Agent Platform, and where humans still need to stay in the loop. *Serhii Vasylenko* **The Pipeline Was Green — AI Agents and CI Trust** We’ve spent years building CI/CD pipelines that tell us when code is "technically correct," but are they capable of telling an autonomous AI agent if a change is safe to apply? This talk explores a real-world incident where an AI-powered automation -- pairing Renovate with Claude Code -- successfully executed a "green" pipeline that broke a critical QA cluster for three days, how the team reacted, and how we evolved our vision toward the future of human-agentic collaboration with code. *Frithjof Hoffmann* **Managing Uninvited Guests: Securing Open Source Dependencies** Open source software is the ultimate neighborhood party, but what happens when an uninvited guest slips through the door? This talk digs into the messy reality of dependency hell and its role in software supply chain security: from typosquatting attacks to maintainer account takeovers, and the abandoned projects with known CVEs quietly living in your codebase rent-free.

In Bad Company is a one-hour stand-up show hosted by Sepideh Kaav, featuring 2–3 of Berlin’s best comedians at one of Mitte’s coolest bars, HIER WO DU STRAHLST. Expect a night of great comedy, terrible decisions, and the kind of socializing where by the end of the night we all somehow know each other a little too well. No topic is off limits. No one is fully safe. Come with friends, come with a date, come alone, honestly, especially come alone, maybe you meet your future best friend or soulmate here. 🍸 HIER WO DU STRAHLST 📅 Thursday 8:30 PM (CEST) Doors: 20:30 Show: 21:00 to 22:00

We're helping spread the word about the upcoming Berlin FinOps Foundation Meetup and would love to see more of our Meetup community there. Please note: **registration is handled by the FinOps Foundation**, not through Meetup. Secure your spot here: [https://community.finops.org/event/berlin-finops-foundation-meetup-july](https://community.finops.org/event/berlin-finops-foundation-meetup-july) The event brings together FinOps practitioners, cloud cost leaders, and community members for networking and knowledge sharing. If you're interested in FinOps, cloud financial management, or connecting with peers in the Berlin area, this is a great opportunity to join the conversation. We're also excited that Henrique Amorim, who recently started as the FinOps Foundation's EMEA Community Lead, will be joining this event. Henrique is eager to connect with the community, share ideas, and discuss the future of the FinOps community across Europe. Bring your questions, feedback, and thoughts on where the community should go next. Register via the FinOps Foundation event page above and we'll see you there.

**The direction is set. Now let's build.** Our first session shaped what this group is about, now we get to see it in action. A member is showing off a real project: what they built, what broke, and what surprised them. Then we open it up: Q&A, war stories, and a honest conversation about the tools, lessons, and struggles we're all running into. Come ready to dig in and share. Before you arrive, **sign up for our newsletter** to stay in the loop on session recaps, resources, and upcoming events: [Future-Club](https://future-club.org) Show up ready to contribute. 🔥 See you there! 👋

This is a 3 phase meetup. You can come at any time. 1.) 6:30 - 7:00 p.m.: Gathering at the meeting spot (see link and photo!). 2.) 7:00 - 7:30 p.m.: Walk & Talk through Tiergarten. 3.) 7:30 - 10:00 p.m.: Immerse conversations in the Zollpackhof beer garden (reserved tables for the meetup). **1.) Meeting spot is Henriette Herz Park.** Copy the coordinates into your maps app: **52°30'38.9"N 13°22'24.1"E** The exact meeting spot can also be seen in the photo. Look for a meetup sign or organizer wearing a black or red lanyard with "staff" written on it. **Best ways to get there:** 1\. S\-Bahn: Get off at Potsdamer Platz by S1, S2 or S25 and walk to the designated meeting spot. 2\. U\-Bahn \(subway\): Alternatively you can get off at Potsdamer Platz by U2 and just walk 5 min straight to the park. 3\. Bus: If you change at mainstation you can take the M41 or M85 to S Potsdamer Platz /Voßstr. and walk to the park. **2.) Walk & Talk through Tiergarten** (the best part imho). During these weird times it essential to connect with nature and like minded people. You will feel instantly energized and an inner calmness afterwards. **3.) How to the find the Zollpackhof beer garden:** https://goo.gl/maps/vDYYaJcFvTmd7hei7 Elisabeth-Abegg-Straße 1, 10557 Berlin We will be sitting outside. Click the gmaps link with the exact meeting spot if you can can't find us! If you enter from the Magnus-Hirschfeld-Ufer, just go to the left part of the beer garden where the self-service is. If you enter from Elisabeth-Abegg-Str, enter the beer garden from the right. *Who is this meetup for:* 1\. Internationals who want to practice German or any other language\. 2\. Germans who want to improve their language skills\. 3\. Anyone who is interested in cultural exchange and wants to socialize\. *What you can expect:* 1\. A professionally organized meetup that can adapt to any changes given the current situation\. 2\. A Walk & Talk to break the ice\. 3\. A collaborating venue where you can further socialize with other members\. *important:* This event is at the same time and meeting location like the "Asian Languages & Culture Exchange 日本語, 한국어, 汉语" one. So I'm basically organizing 2 events at the same time which means that you can expect way more people than on the list. *** Whenever you attend a meetup, the most common as well as first question you get is: "Where are you from?" You probably heard this question a million times. Well, at least I did. From my own experience of attending over 200 international meetups in various countries such as Germany, Japan, Australia and Thailand, I can tell you that asking for the name is a better approach. “A person’s name is to that person, the sweetest, most important sound in any language.” - Dale Carnegie If you really want to connect with like-minded people you should remember their name, but you don't have to remember every persons name you've talked you. Be picky about that, don't be me who can somehow remember everyones name easily. Don't tell yourself sth. like "I'm bad at remembering names." It's all about developing the habit of asking for a name and keep the conversation going on. Furthermore, you want to learn German or any other language. Learning the local language is crucial to connect with the locals and developing a true friendship. This can be accomplished with immersion. My goal is to inspire you to go out of your comfort zone and improve yourself each time you join this meetup.

Ciao a tutti! For our event we would like to meet you at 17:00 and have a beer all together, or other drinks. The goal of our first meeting is to get to know eachother and practice Italian and German. Please don’t be afraid that your language skills might not be sufficiently good or that you are a beginner. We understand that learning languages is a difficult and long journey. We don’t tolerate discrimination. We don't tolerate any aggressive or weird attitude. This has to be a Place of Comfort zone for everyone :) Please be respectful and kind with the others! PS: you can find us on the pool table area usually, if not just ask to the bar area for the reservation on the name "Claudio" A presto, bis bald Claudio Ich hoffe dass wir bald uns sehen!

Unser Verein berlinCreators e.V. trifft sich jeden Freitag ab 18 Uhr im Makerspace. Wir haben Gruppen rund um Elektronik, 3D-Druck, Nähen, Programmieren, Retro Computer. Egal ob Anfänger oder Profi – hier seid Ihr Willkommen. Ihr könnt mit anderen fachsimpeln, Euch inspirieren lassen oder auch mit unserer Hilfe Eure ersten Projekte starten. Wenn Ihr Euch bei uns wohlfühlt und Mitglieder bei den berlinCreators werden möchtest, freuen wir uns. Kommt vorbei, lernt den Space, uns und die Möglichkeiten kennen.

Hast du dich schon einmal gefragt, wie es sein kann, dass manche Menschen scheinbar mehr Glück im Leben haben als andere? Vielleicht sogar mehr als man selbst? Während andere wie vom Pech verfolgt durchs Leben laufen und von einem Unglück ins nächste stürzen? Glück ist erlernbar und NLP kann dir dabei helfen. Komm zu uns ins Studio Jablonski und lass dich gemeinsam mit deiner Begleitung von uns verzaubern. 😊 Wer weiß? Vielleicht ist genau dieser Abend der Beginn einer positiven Veränderung oder macht dein Leben einfach noch ein Stück glücklicher. Wann: Freitag, den 03.07.2026 Uhrzeit: 18:30–21:00 Uhr Ort: Jablonskistraße 25 10405 Berlin Wir freuen uns auf dich und deine Begleitung 😊

​Join Berlin's biggest networking event for early stage founders in Berlin - powered by Holvi! 💛 ⚠️ **Important**: You need to follow these steps if you want to join the event: 1. Please RSVP on Meetup 2. **AND** apply through [this link](https://luma.com/0m92yb8n) for the event 3. Only if you are officially approved (you will receive an e-mail), you are eligible for the event Get out of your own well-known Community and connect with other founders at Berlin's new place to be: The Delta! 🍕 Food & Drinks on us! ⏰ Open Doors from 5:30 pm, official start at 6:30 pm (please don't miss the official start!) This quarterly gathering brings together founder communities across the city, led by HAUS OF STARTUPS and The Delta. ℹ This is not another boring meetup. It is a moderated networking experience designed to help you actually connect and support each other to move forward together! Meet founders from different Incubators and Accelerators – and maybe you will also find a program suitable for your next step: * **Berlin Startup School**: Sidepreneurship programs from idea to first investment (and a new [AI readiness program](https://www.berlinstartupschool.com/aigrowthprogram?utm_source=luma)) * **NXT LVL**: 10-week program for early stage Impact Founders (more info [here](https://nxtlx.de/en/?utm_source=luma)) * **MediaTech Hub Accelerator:** 9-month online program for early-stage MediaTech startups, connecting founders to a strong media and tech network, international trade fair opportunities, C-level media industry leaders, and public funding opportunities in Brandenburg (more info[ here](https://mth-potsdam.de/en/accelerator/)) ...and many more from Berlin's startup ecosystem like Startup Incubator Berlin (SIB), Avant Now, etc. ⚠️ Because of the size of the venue, the spots are limited. So we kindly ask you to only apply for a seat, if you are an **early stage founder**! (Strictly founders, no service providers, no corporates, etc.)! About our sponsor, **Holvi**: [Holvi](https://www.holvi.com/de-en/lp/haus-of-startup/) is your smart business account that helps you manage your finances, so you can focus on what really matters: your business. With up to 10 IBANs, intuitive accounting tools, and seamless integrations like DATEV and sevdesk, Holvi keeps everything under control. Plus, you can now earn returns on your capital and organise multiple accounts for total financial clarity. *Claim your 3 free months [here](https://www.holvi.com/de-en/lp/haus-of-startup/)!* About our campus, **The Delta**: [The Delta](https://thedelta.io/berlin/welcome) is Berlin’s curated workspace and community hub for founders, builders, and creatives. More than just a co-working space, it is the home of The Delta’s venture ecosystem, a physical place for exchange, collaboration, and scalable growth. This is where ventures, investors, and innovators come together to create real impact. *You want to sit with us? Get 20% off with the code "HAUS20".* About us, **HAUS OF STARTUPS**: "[HAUS](https://hausofstartups.com/)" organizes moderated networking events for early stage founders. In addition to that, we offer a platform with everything you need to level-up your startup journey: find your next startup program or discounts for tools, free tickets for events! *It's free!* We are more than excited to see you and to make sure you make great connections! 🍏 Want to help fight food waste? Eat it all up through [SIRPLUS](https://sirplus.de/?utm_source=luma)! Get 20% off with the code "Haus20".

**Nostalgia, Energy & Iconic Moves** Step back into the golden era of MTV and VIVA and celebrate Yourself through the power of music and movement. This class brings back the magic of a time when we watched weekly charts, learned choreographies from music videos, and were inspired by icons like Britney Spears, Beyoncé, and Shakira. It’s all about reliving that energy—while making it Your own. Led by Anastasia, a Berlin-based dance instructor who started her journey back when Commercial Dance was known as Videoclip Dancing. She used to switch between MTV and VIVA, recording her favorite music videos on VHS to learn every move by heart. Today, she brings these memories back to life - blending nostalgia with fresh energy and a deep love for movement. ‍ > I would like to create a space where You feel free to express Yourself, reconnect with the music You love, and enjoy every moment on the dancefloor. – Anastasia ‍ Each session offers a mix of technique, grooves, and choreography inspired by legendary music videos, adapted to the level of every participant (both beginners and experienced dancers). Expect a dynamic, feel-good atmosphere where You can let go, have fun, and reconnect with the joy of dancing. * While we’re celebrating the millennial era, all generations are warmly welcome **TICKETS:** available: at the Box Office before the class ‍ See You Soon. Love. Anastasia & DNA. **LEVEL**: All levels **WHAT YOU NEED**: sneaker, comfy clothes **COSTS**: €15 Regular (Online / Box Office) \- Free for DNA\. Members

**Join us for a hands-on AI prototyping afternoon at The Delta Campus.** Bring your laptop, bring an idea - and spend a few hours **building a first prototype together with other founders**, builders, and curious **AI users**. We’ll give a short intro into **vibe coding and AI prototyping**: which tools to use, how to structure your idea, how to prompt better. After that: **hands-on building**, testing, troubleshooting, and **exchanging ideas in the room**. Coffee, tea, water are on us! This event is also a **warm-up for our next AI Accelerator cohort starting in September**. We’ll briefly share what the program is about, who it is for, and how it helps startups & small businesses use AI in their daily work. **Details** 📍 Location: The Delta Campus 📅 Date: 2 July ⏰ Time: 10:00–13:00 💻 Bring: Your laptop + ideally one idea you want to prototype **Agenda** **10:00 – Welcome & short intro // AI Accelerator Cohort 2 info** AI prototyping, vibe coding, tools, prompts, and setup. **10:30 – Build session** Work on your own idea with guidance, troubleshooting, and feedback. **12:30 – Optional sharing & exchange** Show what you built, ask questions, or get feedback. Come with an idea. Leave with a first version. 🚀

Highlights and Hidden Gems in SQL Server 2025 With so much emphasis on cloud data platforms and AI these days, SQL people can feel left behind by all the marketing hype. SQL Server 2025 was officially released in November of 2025, though, and contains a ton of improvements that will make our SQL Server deployments a bit faster, better, and more secure. There are even more improvements tucked into the release that never made a marketing blog or press release that you'll likely be learning about for the first time in this session! Join this session to learn about what makes your high availability a little more available, your performance a bit more performant, and your database more developer and app-friendly. Come spend an hour with SQL people talking SQL Server 2025 – the good, the "not quite ready for prime time", and the hidden awesomeness.

You can sleep in on the Sesquicentennial (observed), we’re shifting to the following Friday. But join the local UX community for a chat and some biscuits to catch up. If you were in CA for Figma Config, tell us all the lines and you can tell me how I can animate an SVG without coding it by hand, and why I’d even want to. Thanks to the team at Nationwide of supporting the group.

These meetings will be a building block approach to learning photographic mastery over three disciplines: Completely Mechanical (CM) - A 13-week series Completely Exposed (CE) - A 26-week series Completely Composed (CC) - A 52-week series All three series will run concurrently and will dovetail as follows: Q3/26 - CM (Iter 1), CE (Iter 1, Pt 1), CC (Iter 1, Pt1) Q4/26 - CM (Iter 2), CE (Iter 1, Pt 2), CC (Iter 1, Pt2) Q1/27 - CM (Iter 3), CE (Iter 2, Pt 1), CC (Iter 1, Pt3) Q2/27 - CM (Iter 4), CE (Iter 2, Pt 2), CC (Iter 1, Pt4) That's likely confusing, but essentially, CM offered 4 times in that period, CE offered 2 times, and CC offered 1 time. **TO BE CLEAR - THERE IS NO CHARGE FOR THESE CLASSES.** This is an aggressive series, with presentations, homework, group shoots to be added in, likely at LEAST twice a month, image critiques, and an expectation that you are willing to put in the work to elevate your photography significantly. Open to all levels and all equipment levels. Don't let hesitation about your skillset and/or gear keep you from a one-time opportunity. The group will meet every Tuesday, with periodic exceptions, and we will try to keep as close as possible to the original plan. Obviously, more data is coming and will be published as this is further developed, but now is the time to decide if you want to be a part of this.

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/azure-cbus-2026/

This will be our regular monthly meeting, with a new topic picked each month. Topics to be determined and posted soon.

**Practical Curiosity: Learning from Everyday Data** How do we actually get better at utilizing our day-to-day data? Fancy dashboards and complex models might look nice and draw attention, but that’s not where most of us spend our time. In fact those shiny outputs frequently sit unused, while the real insights are drawn from the analyst’s daily practice. Sometimes it’s as simple and as powerful as noticing that a segment is shrinking, a channel is underused, or certain links keep getting all the clicks. There’s many different places that the spark of insight can come from, but you have to keep your head in the data and know where to look. In this session, we’ll explore real-world examples of how segmentation, testing, and click behavior can uncover practical digital marketing opportunities. You’ll leave with inspiration for your own use cases, along with a few simple ways to ask better questions, spot meaningful patterns, and make smarter decisions without overcomplicating it. **About Our Speaker:** [Elaine Armbruster](https://www.linkedin.com/in/elainearmbruster/) is a Director of Digital Experience at the [American Diabetes Association](https://diabetes.org/), where she focuses on using data and insights to create smarter, more effective digital experiences. A lifelong Columbus resident, she has built her career in email marketing and the broader digital user journey, and is finding she most enjoys working in the messy middle where systems, data, and big ideas don’t quite line up yet. 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)

Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” and move on. That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable. In this talk, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork. This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it. We’ll cover: * Why “it looks good” is not enough * How to improve prompts by changing the input, context, and constraints * How to compare LLM outputs more systematically * Basic evaluation techniques for accuracy, consistency, and usefulness * How embeddings, cosine similarity, and scoring can help evaluate results * Where automated evaluation works — and where humans still need to stay in the loop By the end, you’ll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.