Context Driven Testing

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/.

Head to Mein Freund Harvey, a retro-themed bar specializing in cocktails, and enjoy a curated standup comedy open mic with Berlin's best comedians. Arrive at 7:00 PM and enjoy top-notch spirits, cocktails, and wine before the show. At 7:30 PM, your host will give you pen and paper to write down your secrets (anonymously) for public airing at the end of the show. At 8:00 PM, sit back and enjoy a 60-minute show with no break. The setting is fun, friendly and the bar is perfect for dates and hanging out with friends. Come Laugh With Us! Produced and Hosted by Tyrone Stallone Tyrone is a California native who travels the world and does comedy. Known for his irreverence and quick wit, Tyrone is a favorite in the Berlin scene where people need a laugh, and need to laugh hard. He has opened for comedy greats like Sam Jay, Ari Shaffir, Tom Rhodes and Phil Nichol. Tyrone hosts several shows around Berlin. He has been featured on Vice, Berliner Zeitung, Berliner Kurier and Radio Eins. with GUEST COMEDIANS annouced on IG stories @tyronestallone [https://www.instagram.com/tyronestallone/](https://www.instagram.com/tyronestallone/) MEIN FREUND HARVEY Kulmer Str. 20A, 10783 Berlin, Germany - S/U-Yorckstraße, U-Kleistpark, U-Bülowstraße Cosy, friendly, sophisticated bar with a huge range of whiskies and cocktails. Arrive early to enjoy something special. Non-smoking inside. Seating out front for smoking. Performance space in the back room with a limited capacity of 22, so get your tickets early. CARD PAYMENT ONLY Tickets 10 Euros Purchase Here: [https://www.eventbrite.com/e/dirty-laundry-stand-up-and-air-out-in-english-wtyrone-stallone-tickets-1703122578479?](https://www.eventbrite.com/e/dirty-laundry-stand-up-and-air-out-in-english-wtyrone-stallone-tickets-1703122578479?)

An International Event for everyone around the world looking at starting an online business to create a reliable side income or future-proof existing earnings ⚠️ **Important:** You must click the registration link in advance — selecting “Attend” on Meetup alone will NOT give you access. ***Click here > https://www.podlaunchpro.com/webinar*** to register in advance of the workshop start. *Please note : The zoom link allows you to register in advance and the workshop zoom link is emailed to you. Please join the event a few minutes before it starts.* Want to start an online income stream — without stock, design skills, or big upfront costs? Print-on-demand has become one of the simplest ways to launch an online business — and with AI, it’s now faster and more accessible than ever. In this live session, you’ll see how ordinary people are creating and selling products online using simple tools and proven methods — without needing to be technical or creative. \*\*\* \#\# 👀 What you’ll learn • How AI can help you create designs and product listings • How to find niches and keywords people are already buying • Why Etsy remains one of the easiest places to start • The exact steps to go from idea to live online store No fluff. No theory. Just a clear, practical walkthrough of how this works today. **\*\*\*** **About your host** Led by Nigel Wymer — a print-on-demand mentor with 16+ years in e-commerce and a proven track record selling on Etsy. Featured on Can You Make £10K in 10 Days?, where print-on-demand was selected as one of the simplest business models to get started. \*\*\* **Who this is for** • Complete beginners exploring online income • Anyone looking for a flexible side hustle • Existing sellers wanting to simplify and scale with AI No experience needed — everything is explained step by step. ⚠️ **Important:** You must click the registration link in advance — selecting “Attend” on Meetup alone will NOT give you access. ***Click here > https://www.podlaunchpro.com/webinar*** *Please note : The zoom link allows you to register in advance and the workshop zoom link is emailed to you. Please join the event a few minutes before it starts.* The Adapt and Thrive Events Group wholeheartedly supports the policies and principles of Meetup. We make no guarantees and we do not offer financial services or assurances. All our Meetup Events are FREE to attend.

**Liebe Gophers,** am 13.Mai geht es bei uns um eines der wichtigsten Patterns in verteilten Systemen: das **Transactional Saga Pattern**. Wer mit Microservices arbeitet, kennt das Problem – eine Bestellung aufgeben klingt einfach, aber dahinter stecken Payment Service, Inventory Service, Shipping Service... und jeder hat seine eigene Datenbank. Was passiert, wenn mittendrin etwas schiefläuft? Klassische ACID-Transaktionen funktionieren hier nicht. Sagas schon. Unser Speaker Mark Borukhov zeigt, wie das Saga Pattern funktioniert – mit echtem Go-Code, einem E-Commerce-Beispiel und Live-Demo. **Was euch erwartet:** * Warum verteilte Transaktionen ein echtes Problem sind * Saga Pattern: Konzept, Choreography vs. Orchestration * Implementierung in Go – Schritt für Schritt * Pitfalls, Lessons Learned & Q&A Das Event richtet sich an alle – von Go-Einsteigern bis zu erfahrenen Entwicklern. Auch wer Go nicht kennt, aber Microservices baut oder Patterns liebt, ist herzlich willkommen. **Der Vortrag wird auf Deutsch gehalten.** Wir treffen uns um 18 Uhr bei [lynqtech](https://www.lynq.tech/). Mit dem Vortrag starten wir um 18:30 Uhr. Danach wollen wir über Technologien und Erfahrungen plaudern, voneinander lernen, Kontakte knüpfen und einfach eine tolle Zeit miteinander verbringen. Wir freuen uns auf euch! 🚀 *Mark & Anna*

In einer kleinen, gemütlichen Gruppe treffen wir uns regelmäßig, um den Tag mit positiver Energie zu beginnen - für mehr Vitalität und Lebensfreude. Mit Energieübungen, EdxTM nach Dr. Gallo - eine Meridianklopftechnik mit postiven Affirmationen, Atem- & Energieübungen ... und einem netten Gespräch bei Tee und Kaffee. Das Treffen ist kostenlos - Spenden sind willkommen! Wer möchte kann anschließend noch eine Access Bars Session zum Morning Special bekommen: https://www.i-feel-so-good.de/access-consciousness/access-consciousness-einzelsessions/access-bars-sessions.html Anmeldung bitte zeitnah telefonisch oder per whatsapp - die Plätze sind begrenzt

# Tired of dating apps or surface-level events? This is different. This is a **2-hour guided relational experience** designed to help you connect with other singles in your city — without small talk, pressure, or performance. **What happens:** • You join a 2-hour guided online session • You meet a small group of singles from Berlin • You’re led through structured connection exercises • Within 48 hours, you meet the same group in person • You stay connected afterward via WhatsApp **This is for you if:** • You’re done with shallow or random social spaces • You want deeper, more intentional connection • You’re open to a structured experience If you’re just browsing or looking for something casual, this likely won’t be a fit. **Important:** Spots are limited and booking happens through our website. 👉 Reserve your spot & stay in the loop with new events every month: [[https://consciousconnections.com/join](https://consciousconnectionsclub.com/join)] **When:** Online session: [9-11 AM] In-person meetup: within 48 hours (details shared after booking) Most people come alone. Most leave having met people they genuinely want to see again.

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.

\*Tickets at the link at the bottom! Ready for The best comedy battle in Berlin? So are we! Get ready for our monthly show at @800aberlin Since 2005, @comedyshortsberlin has been putting together two teams of Berlin's finest comedy improvisors to play a head to head match of short form competitive improv! Some say it's the Olympics of Improv, we just like to call it fantastic. Join us on Friday, April 19th, 19:30 at @800aberlin, Stettiner Str. 19, 13357 Berlin. Tickets online: 12€ Tickets at the door: 14€ Ticket link: https://www.yesticket.org/event/en/comedyshorts-on-170426-at-800a-17-04-26/

Join this Professional Communication session — to sharpen the skills for architectural pitches, elevator pitches, interviews. This time we meet in the Monbijou park. 💡 How it works The event is split into two parts: 1. **Communication (10 minute rounds)** – One participant answers a round of design and behavioral questions. Each other participant gets to ask him one question. 2. **Feedback Round** – The group provides feedback on communication, structure, and clarity. Constructive criticism is encouraged. 💡You will be asked: * **Light design problems** (high-level reasoning, not code) * **Behavioral questions** (“Tell me about yourself”, “Describe a challenge you faced...”) No need to prepare anything in advance — just bring curiosity and an open mind. 💡Note: location is the entrance to Monbijou park

Welcome to our cosy Godot Engine Community Meetup A Maze Edition! 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! 🦜 This is an open event and we will hang out at c-base afterwards, so it is fine to come late. 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/)! 🕊️

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.

**Luxury & Empowerment: Refining capacities to receive and to give** with ***Jorge De Hoyos*** for **GBTQ+ men\*** **[Book a ticket](https://wearevillage.org/en/shop/sensual-touch/w20-2026)** Member: **15€** Non-member: **30€** Ready to rewrite your scripts on intimacy? Join us for an exploration of the delicate dance between giving and receiving. By tuning into your body’s unique signals of “yes” and “no,” you’ll learn to transform old habits into playful new roles. Whether you’re seeking the “luxury vacation” of a perfect touch or the thrill of radical generosity, this workshop offers a safe, consent-based space to expand your capacity for pleasure. What are your patterns in getting what you want? Is it vulnerable to ask for what you truly desire? And if something is requested of you, are you confident to give appropriately and enough? The relational work of cultivating pleasure through consent requires listening to where your body registers expanded channels and resistances & blocks to the flows of intention and energy. Which habits then would you like to transform? What new and fresh roles might you try on? What touch would be a luxury vacation, and how adventurous can you be in your generosity? All capacity levels welcome! \*Nudity and gential touch is possible, but no where near expected or required. 🔵 **Luxus & Empowerment: Die Kunst des Empfangens und Gebens verfeinern** Sensual Touch Lab Series mit ***Jorge de Hoyos*** Bist du bereit, deine Skripte über Intimität neu zu schreiben? Begib dich mit uns auf eine Entdeckungsreise durch den feinen Tanz zwischen Geben und Nehmen. Indem du lernst, auf die ganz eigenen Signale deines Körpers für „Ja“ und „Nein“ zu hören, transformierst du alte Gewohnheiten in spielerische neue Rollen. Egal, ob du den „Luxusurlaub“ einer perfekten Berührung suchst oder den Nervenkitzel radikaler Großzügigkeit – dieser Workshop bietet dir einen sicheren, konsensbasierten Raum, um deine Fähigkeit für Genuss zu erweitern. Welche Muster zeigst du, wenn es darum geht, das zu bekommen, was du willst? Fühlst du dich verletzlich, wenn du nach deinen wahren Wünschen fragst? Und wenn etwas von dir erbeten wird: Hast du das Selbstvertrauen, angemessen und aus vollem Herzen zu geben? Die Beziehungsarbeit, Lust durch Konsens zu kultivieren, erfordert ein tiefes Hineinhören: Wo spürt dein Körper offene Kanäle und wo zeigen sich Widerstände oder Blockaden im Fluss von Absicht und Energie? Welche Gewohnheiten möchtest du transformieren? In welche neuen, frischen Rollen würdest du gerne schlüpfen? Welche Berührung wäre für dich wie ein Luxusurlaub, und wie abenteuerlustig kannst du in deiner Großzügigkeit sein? Alle Erfahrungsstufen sind willkommen! \*Nacktheit und genitale Berührungen sind möglich, werden aber keinesfalls erwartet oder vorausgesetzt.

**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

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.

Join the CONNECTED Westerville Mastermind Group for a dynamic afternoon of B2B networking! This event is perfect for professionals looking to expand their business connections, share insights, and foster collaboration within the community. Whether you are a seasoned entrepreneur or just starting out, this event offers a valuable opportunity to exchange ideas, build relationships, and grow your network in a supportive environment. Connect with like-minded individuals, explore potential partnerships, and discover new opportunities for professional growth. Don't miss out on this chance to enhance your business network and take your career to the next level with CONNECTED Westerville Mastermind Group! We meet the 4th Monday of every month from 11am-1pm. Welcome and general networking from 11am - 11:30am with core meeting 11;30 - 12:30 and a final round of networking from 12:30 - 1pm.

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

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)