Scientific Computing

We are back in the c-base! Do you already run NixOS and want to talk to other people or want an introductory session with some NixOS users. Just bring your machine! Usually there are no topics, we just sit in front of our computers, talk about stuff, debug some problems or review some PRs on nixpkgs. There are drinks usually available from the c-base bar. If you can't find us. just ask around or ask in irc (#krebs on hackint)

Dear Community, Another month with an interesting talk right before Hamburg Summit, and we would like to hear your thoughts for the rest of the year and after. Will be pleased to have you with us on the evening! We have limited seats - 50 only - first come first served! Our dearest thanks to Lightspeed for hosting us on the evening! =================================================== 18:30 - Warming up and networking chat 18:45 - Intro by AWS UG Berlin 19:00 - 19:40 - **Elias Abud // Delegated Access Management at Scale with AWS IAM Identity Center** This talk presents a delegation architecture that enables project owners and security stakeholders to manage their own users, groups, accounts, and permission sets while maintaining central governance. The solution introduces a unified API layer that can operate across multiple Identity Center instances and enforces organizational policies and quotas. It also applies the Backpressure Pattern to control request rates and protect Identity Center from overload. Participants will learn how to implement delegated identity management at scale while balancing autonomy for teams with centralized security oversight. 19:40 - 20:00 - Networking break with food, snacks and drinks 20:00 - 20:40 - **AWS User Group - Ask Me Anything** We would like to dedicate the time and stage to you, our dearest community members to ask your questions, share your thoughts and ideas, provide feedback. This can be technical, or community related. Everyone is welcome, and we aim to address your input in the upcoming AWS Summit and more. 20:40 - 20:45 - Closing & Final Remarks =================================================== **Very Important: Only 50 seats are available for this event.** If you want to make sure you can attend: Register yourself with your "full name" here at meetup.com Arrive on time - seats are first come, first served. As soon as there are seats available, you are welcome to join with your registration. In case there are no more seats available, we won't be able to let you join us this time. We thank you very much for your understanding! ================================== 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 Berlin events at your company? [Register here](https://bit.ly/aws-host) Would you like to speak at AWS UG Berlin sessions? [Submit your talk here](https://bit.ly/aws-talk)

Join us for a community-led developer event focused on **AI-assisted coding with GitHub Copilot**. This event brings together developers to explore practical workflows, real-world use cases, and hands-on experiences using GitHub Copilot. Whether you are new to GitHub Copilot or already using it, this event will help you better understand how to apply AI-assisted coding techniques in everyday development hosted at **adesso SE**. **Sessions & Workshops** 1. **GitHub Copilot in practise - Sandra Ahlgrimm** 2. **Let's create a tiny AI library together, Copilot powered - Johannes Bechberger** 3. **GitHub Copilot Hands-on workshop - bring your laptops!** **Location** [Prinzenstraße 34, 10969 Berlin](https://www.google.com/maps/place//data=!4m2!3m1!1s0x47a84e50ecd583e3:0xde16d03634776e3b?sa=X&ved=1t:8290&ictx=111) **Agenda** 17:30 - doors open 18:00 - warm welcome by JUG leader **Sandra Ahlgrimm** and **Gregor Böhme** from **adessoSE** 18:15 - first session 18:40 - second session 19:30 - workshop **Abstracts** **Let's create a tiny AI library together, Copilot powered** We all want to do it. When you want to integrate AI into your tools, what do you do? You add LangChain4j or SpringAI and run with it. But do you know how these libraries interact with the AI service providers or your local llama-server instance? These libraries aren't magic, so let's peek behind the curtain and write a tiny AI library together. This way you'll discover the REST APIs that power it all. **Speaker** **Johannes Bechberger,** a nerd passionate about compiler building and program analyses that enjoys cooking and works on the JVM at SAP ([LinkedIn](https://www.linkedin.com/in/johannes-bechberger-381296149)), making profiling easier for everyone. **Sandra Ahlgrimm** is Senior Developer Advocate working for Java Developers with Microsoft at GitHub. She also leads the Berlin/Brandenburg JUG together with Jörg, Oliver and Jan. **Gregor Böhme** is the Director of Software Development and Delivery Maître at adesso SE and leads a competence center for custom software development. He has many years of experience in building and delivering large-scale software projects, as well as developing teams and growing engineering leaders.. **A big thank you to adesso SE** for hosting the event and generously providing food and drinks during the event. Your innovative approach and commitment to excellence are greatly appreciated!

Get ready for a night full of laughs at **Big Berlin Comedy!** High Energy Hosting, great vibes and lots of wild crowd interaction! Whether you're a local or just visiting, this is the perfect chance to enjoy some top-notch comedy with friends. Don’t miss out on the fun – comedy fans unite and let’s make it a night to remember! Doors 8pm Showtime 9pm Tickets It's NOT A FREE SHOW. It's Pay What You Want. You just decide the amount you want to pay AFTER the show. Artists deserve to be paid. If you plan to not pay at all, please don't come to our show!! Free Entry + Donation based. We suggest a donation of 10€-15€. Students & unemployed 5€-7€. We accept cards & cash

KI ausprobieren, ohne vorher Informatik studiert zu haben. Das ist die Idee hinter diesem Abend. Vorkenntnisse schaden nicht aber brauchst du keine. Wenig Theorie - viel Praxis: Tools ausprobieren, Fragen stellen, mit erfahrenen Entwicklern an eigenen Use Cases arbeiten. Egal ob du KI bisher kaum genutzt hast oder einfach mehr draus machen willst. **Der Abend:** * Ankommen & erstes Kennenlernen * Impulsvortrag (20–30 Min.) * Hands\-on Workshop in kleinen Gruppen \| selber ausprobieren * Austausch/ Networking zum Abschluss **Vorab - Das bringst du mit:** * Deinen eigenen Laptop zum Arbeiten * idealerweise hast du bereits einen Account bei einem KI-Tool eingerichtet - wir arbeiten mit Claude. **Danach - Du nimmst mit:** * Ein klares Bild davon, wie aktuelle KI-Tools funktionieren und wo ihre echten Stärken liegen * Erste praktische Erfahrung mit KI-gestütztem Arbeiten, direkt am eigenen Rechner * Eine konkrete Idee, wo KI dir im Alltag, Studium oder Job Zeit spart Event for free. Max. 15 Teilnehmende. Verpflegung inklusive. Im berliner Büro nahe U-Bahnhof Heinrich-Heine-Straße. **Über uns:** Wir sind Teclead Ventures - Nicht mehr ganz ein StartUp aber jung geblieben :D Seit 8 Jahren in der Softwareentwicklung und IT-Beratung unterwegs . Mittlerweile begleiten wir auch kleine und mittlere Unternehmen beim strukturierten Einstieg in KI.

**Topic: XP in Science?** Science and Extreme Programming might share more than people might think - both live from rapid feedback, sharing knowledge and a mindset which embraces change. Let's figure out togehter how science look like if it takes XP seriously and what XP practitioners might learn from how science handles uncertainty. **What to Expect:** * A concise, 5-10 minute expert presentation introducing us to the nuances of the topic. * Engage in insightful discussions with fellow participants in breakout groups, exploring diverse experiences and practices. * Dive into prepared questions designed to challenge and expand your perspective on the topic. * A fantastic opportunity to network with like-minded professionals and enthusiasts passionate about software development and team building. *** **Broadening Our Discussions:** We explore a wide range of topics, including Extreme Programming (XP), agile management methods, lean theory, career management, programming katas, and other areas related to software development. Whether you're new to software, a seasoned practitioner, or an expert, your insights and experiences are valued here! *** **Event Details:** We'll gather from 7:00 PM, officially start the session at 7:15 PM, and take a break at 8:30 PM to decide the topic for our next session. Don't miss this chance to learn, share, and connect!

**We switched away from Meetup for organizing this event!** Right now, you have a couple of options, because we're still trying to find the best alternative. Please go to one of the following event pages, instead, and let us know, which one you'd prefer and for what reason! Help us find the best way to organize the event while supporting Free and Open Source software! \* [lu.ma/vuejs_berlin](https://lu.ma/vuejs_berlin) \- not open\, unfortunately \* [openmeet.net/groups/vuejs-berlin](https://openmeet.net/groups/vuejs-berlin) \- open alternative that supports atproto \* [roomy.space/vuejs.berlin](https://roomy.space/vuejs.berlin/) \- open community chat linked to OpenMeet

You know that friend you always say yes to, even though — or maybe because — you have no idea what you're getting into? That's what this is. 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 at 8:30 PM (CEST) Doors: 20:30 Show: 21:00 to 22:00

Hello Gophers, Welcome back for another year of Go talks and networking! Would your company like to host our meetup? Let us know! If you'd like to give a talk - submit your proposals here: http://goo.gl/forms/54YvJT223F All talk formats work: short talks (5-10 min) as well as regular length (25 min). If you have more ideas - talk to us at the Gophers slack: https://invite.slack.gobridge.org/ in the #berlin channel, and follow us on twitter: https://twitter.com/gdgberlingo **Speakers**: *Simon Schulte* is a Tech Lead with nearly a decade of experience building scalable backend systems across fast-paced product companies. With a background in business informatics and a passion for Golang, cloud infrastructure, and DevOps, he has spent his career solving complex engineering challenges. He is particularly excited about leveraging AI and LLM workflows to eliminate the tedious, repetitive work that slows developers down — think tech debt, boilerplate, and documentation — so engineers can spend their energy on what actually moves the needle. For Simon, AI isn't about replacing developers; it's about giving them back their time. *Daniel Peralta Madriz* is a backend engineer from Costa Rica with around 6 years of experience working with Golang, although, sadly, he's been spending most of his time lately working with Node.js :(. He is interested in distributed systems, scalability, and developer experience, and is currently experimenting with how to leverage LLMs to safely and autonomously execute repetitive tasks. *Michael Morgen* is a Platform/infra engineer by day, runtime and network optimizations by night. Join in person at: **Talon.One** Talon.One is the incentives engine behind 300 of the world’s most-loved brands, unifying loyalty and promotions on a single flexible platform. Their customers run millions of real-time incentive decisions across markets, channels, and use [cases.As](http://cases.as/) incentives become more strategic than ever, they are continuing to raise the bar for what businesses can build and how fast they can build it Wiener Str. 10, 10999 Berlin https://maps.app.goo.gl/8eMjgWes1E4TBA3c7 or virtually at: https://www.youtube.com/live/qh__TQ1bMF0?is=hw21pk0ZE3HGyaaT *** Agenda 10:49 PM: Networking Networking over drinks and food 7:30 PM: Welcome Welcome words from the organizers 7:35 PM: Talk 1: Go-ing Against the Chaos: Deterministic LLM Workflows / Daniel Peralta Madriz (Backend developer) & Simon Schulte (Techlead of Webhooks and Notifications) @ Talon.One LLMs are powerful, but “it works most of the time” isn’t good enough for production. In this talk, we’ll walk through how to design deterministic workflows around non-deterministic models using Go. From structured iteration loops to validation steps and guardrails, you’ll learn how to move beyond prompting and start engineering reliable LLM-powered systems 8:10 PM: Announcements and break Announcements, HR lost & found, open mic 8:30 PM: Talk 2: About Go Memory Allocator / Michael Morgen, Platform/infra engineer @ Mirantis A short talk about how Go gives memory to your program. We will look at the main allocator parts, why small allocations are usually fast, when Go asks the OS for more memory, and a couple of simple examples where this knowledge helps performance. 9:05 PM: Networking Networking over drinks and food *** Hosted By Natalie Pistunovich, Organizer Ole Bulbuk, Organizer Tim Scheuermann, Organizer Anderson Queiroz, Organizer Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-berlin-golang-presents-hybrid-may-golang-meetup-1/.

"No half-thruths, just naked minds” Welcome to the comedy show where you can see unfiltered comedians speak their thruth since almolst 5 years! Their topics can range from their last sexual encounter to why they hate chickens and how to win a fight with a chesse sandwich. So expect any kind of material from clean to the very dark. Each comedian will have between 5-10 minutes to make you laugh. The show is located in the Kollektiv Bar Kleinod on Niemetzstr. 24 in Neukölln - open for all of those who appreciate cozy art nights and a fine selection of drinks and good mood. The space is limited, so the early bird catches the worm - get a reservation for your own good! Doors: 19:30 Show: 20:00 Get your free reservation now & pay what you want for the show! *Reservations are only kept until 19:45, so please arrive before that for assured seating. Instagram: @ultracomedyberlin9 Facebook: https://m.facebook.com/ultracomedyberlin Support: https://www.patreon.com/ultracomedy

ComedyShorts Berlin is a fast-paced competitive improv comedy-match played like a sporting event. Two teams go head-to-head in a playful, highly interactive battle-of-wits where the audience yells out suggestions all night and votes for which team brings on the ‘funny.’ The group performs in English, and established itself as the the first English-speaking improv group in Berlin since its premiere in 2005. Tickets are only 12 eu sold through YesTicket, at 14 eu at the door. Ticket link: [https://www.yesticket.org/e/fxegY8tDXi](https://www.yesticket.org/e/fxegY8tDXi)

Welcome to our cosy Godot Engine Community Meetup! This is not a structured meeting, but rather a friendly get-together. We will hang out, chat and maybe show some of our current projects! 🦜 Regardless if you are an artist, designer, programmer, beginner, hobbyist, professional or anything in between: join us for sharing knowledge, creating art together, coding together, joining game jams together and having fun! 🌼 This meetup will happen at [c-base](https://c-base.org), Rungestraße 20, 10179 Berlin. 🛰️ You can also join us on [our Discord Server](https://discord.gg/Sm3CgrqqQa). ☎️ Follow us on [Mastodon](https://mastodon.gamedev.place/@GodotUserGroupBerlin) for updates. 📢 Also check out [our website](https://godot.berlin). 🌐 Please be [excellent to each other](https://godotengine.org/code-of-conduct/)! 🕊️

Whether you're a seasoned tech veteran or just starting out, let's create the ideal afterwork place to meet and chill with other workers in tech - find that new job, expand your network, share ideas, and stay up-to-date on the latest trends in the industry. Let's inspire, innovate, and shape the future of technology in Berlin! Tech, AI, Data, IT, and more \~ ​ \-\-\-\-\-\-\-\- ### Event Details 💰 Cost: Free 🍺🥃 Afterwork drinks and social 📍 Belushi's Berlin (Alexanderplatz) (Inside, or ask for Tech Social) - Rosa-Luxemburg-Straße 41 🕕 6:00pm onwards every Friday ​ **Or RSVP on the website for our Discord / WhatsApp communities, and to see who else is going and what their backgrounds/seniority/interests are:** 🔗 [Link to Website](https://techsocialberlin.com/event/meetup) ​ If you cannot find us, ask staff about Tech Social, or ask in the WhatsApp community above. ​ \-\-\-\-\-\-\-\- ### Who Should Attend? Perfect for **Berlin tech professionals** including: * **Software Developers & Engineers** (Python, JavaScript, Java, C++, React, Node.js) * **Data Scientists & Analysts** (Machine Learning, AI, Data Visualization, SQL) * **Cybersecurity Professionals** (InfoSec, Ethical Hacking, Cloud Security) * **Product Managers & Tech Entrepreneurs** * **Students & Tech Graduates** looking to break into tech * **Career Changers** entering tech industry * **Remote Workers & Digital Nomads** in Berlin * **Startup Employees & Entrepreneurs** * **Digital Marketing & Product Professionals** * **Senior Engineers** looking to mentor and network \-\-\-\-\-\-\-\- ### What You'll Experience * 🤝 **Network with Berlin tech community** * 💼 **Job opportunities** and referrals from peers * 🚀 **Career acceleration** through peer networking * 🎯 **Skill sharing** and tech discussions * 🧠 **Knowledge sharing** on latest tech trends * 🎉 **Social activities** and games * 🧠 **Learn from peers** about real-world challenges * 🚀 **Collaborate** on projects and ideas * 🎯 **Mentorship connections** (both ways!) * 🍻 **Fun, casual atmosphere** \- no matter your seniority level \-\-\-\-\-\-\-\- ### Event Guidelines * Support the venue by purchasing drinks/food (no outside items allowed) * Maintain appropriate behavior and respect for all attendees * Bring physical ID if required by venue (call ahead to confirm) \-\-\-\-\-\-\-\- ​ ​ *Berlin Germany tech social mixer afterwork drinks AI connect network data IT programming cybersecurity digital nomad blockchain crypto big data science computer networking community jobs entrepreneur industry product design startup software development machine learning python javascript professional networking career development it professionals developers mentorship ai sql analytics data engineering business intelligence deep learning tensorflow pytorch data visualization data analysts ml engineers Berlin Germany tech social mixer afterwork drinks AI connect network data IT programming cybersecurity digital nomad blockchain crypto big data science computer networking community jobs entrepreneur industry product design startup software development machine learning python javascript professional networking career development it professionals developers mentorship ai sql analytics data engineering business intelligence deep learning tensorflow pytorch data visualization data analysts ml engineers*

## DNA. presents ''SHUFFLE FUSION'' **A smooth Dance Style connected to Electronic Music** This workshop guides You through the numerous facets of shuffle movements and shows You how to connect them into choreographies. Lead by our two amazing community members & Your new Shuffle Teachers Marcel & Dani Ospina - talented shuffle teachers that started shuffling at a very young age and leads this class with his experience connected to a lifetime of passion. ‍ Wednesdays (weekly, regular)- Marcel & [Dani](https://www.instagram.com/daniospina20?igsh=bnBrM3BxY2xuNnll) ‍ ##### *Try something new and experience an energetic dance style full of passion and great rhythms.* See Us Soon. Love, Marcel, Dani & DNA. *** ...for more info check out www.dna-artclub.com / follow us on IG: @nightart.club ______ \*Members of Dair Night Art e.V. and Subscribers of DNA. Art GbR. \*\*By entering the DNA. ART HOUSE, You agree to comply with the Hausordnung of Dair Night Art e.V. and Geschäftsordnung of Dair Night Art e.V. Please ensure You review these documents thoroughly in advance.

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

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.

**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

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

**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

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.

**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** TBD **YouTube Link** TBD