Ionic Framework

We debate questions chosen by participants. Please think of a question to suggest in advance. Or not, then just show up! If you can't attend, please change your RSVP.

Prosecco lover or professional? Why not both. Join us for an easygoing after-work meetup where Amsterdam’s professionals come together to unwind, connect, and enjoy a good glass of prosecco (or whatever you prefer). This event is for people who work hard during the day but still value good conversations, new connections, and a relaxed social atmosphere in the evening. No awkward networking, no name tags, no pressure — just smart, curious people meeting over drinks. We’ll meet at Dickys in Zuid, a well-known spot where the office crowd naturally drifts after work. Expect a friendly mix of internationals and locals, familiar faces and new introductions. Who this is for People aged roughly 25–45 People who enjoy socialising without forced networking Anyone who prefers good company over loud clubs Come as you are — professional, prosecco-lover, or both. Looking forward to seeing you there.

Love volleyball but still feel unsure about your skills on the court? Or are you completely new to volleyball? This is the group for you! VTAG Volleyball Training for Beginners, Lower, and Intermediate Levels is a VTAG (Volleyball Train & Game) initiative designed specifically with volleyball beginners and lower and intermediate levels in mind. Our trainers will help you develop and improve your volleyball skills with a focus on foundations along with a solid understanding of positions and game rotations. **Here's what to expect from VTAG's beginner session:** * -(10-15) min: early arrival - get changed and ready to play * 10-15 min: group welcome and warm up * 1h 15min: training (defence, setting, attacking, 5-1 rotations etc.) * 20 min: practice game * 10 min: cool down and clean up **This group is for:** 1. Volleyball players who have a basic understanding of the game or have played recreationally (Level Recreational or B - check the guide [HERE](https://grabagame.com/volleyball-skill-levels/)). 2. Volleyball players who are restarting their journey after a long break or injury. 3. Players who don’t yet understand 5-1 or 6-2 rotations and have only played in high school rotations. **Who shouldn’t join?** 1. Complete beginners who have never played volleyball before. (Don’t worry. We’re working on it, and we hope to have a group for complete beginners soon!) **Please note:** 1. Dev will share a Tikkie link for €10 in our shared [WhatsApp](https://bit.ly/VTAG_Whatsapp_Beginner) group, or you can pay cash at the event. 2. If you can no longer make it, please update your RSVP at least 48 hours before the event to help us prepare a skill-appropriate training session and balanced teams for everyone. 3. We will play a 5-1 rotation. If you don’t have a set position yet, we’ll help you determine the best fit for you. See you there!

Brothers, let's get together and do the work. Let's grow together as brothers, sons, fathers, and men. The world needs it. We need it. Join this **recurring men's circle** in Amsterdam, dedicated to enhancing men's mental, spiritual, and emotional well-being. We will sit in a circle together and share our thoughts. Whatever comes up, whatever is alive in you right now. No judgment, just support and - if you want - accountability from other men. **Sign up now to check it out.** The first evening is your step into the circle. Investment: €5 (Pay through PayPal here or sign up through this link: https://hipsy.nl/shop/mens-work-amsterdam) From then on, the space is sustained by contributions. Suggested range: €5–10 per evening. Offer what feels right and within your means. Showing up matters more than the amount - **your presence is the real investment.**

This training is part of the introduction weekends series. In it, we will introduce our key theoretical models. These will help you improve your facilitation skills in the therapy room and beyond. Introduction weekend – [The systemic perspective on the human in organisations](https://www.meetup.com/family-constellations-amsterdam/events/313708676/?slug=family-constellations-amsterdam&eventId=313708676) You'll learn about the systemic iceberg model. April 17-18-19, 9:30 walk in, 10:00 start, 17:00 end Introduction weekend – [Guiding deep personal and cultural change processes](https://www.meetup.com/family-constellations-amsterdam/events/313708689/?slug=family-constellations-amsterdam&eventId=313708676&isFirstPublish=true) You'll learn about the systemic transition model. May 1-2-3, 9:30 walk in, 10:00 start, 17:00 end Introduction weekend – [How to professionally work with perpetrator-victim dynamics in therapy](https://www.meetup.com/family-constellations-amsterdam/events/313708704/?slug=family-constellations-amsterdam&eventId=313708676&isFirstPublish=true) You'll learn to work with our conceptual models. May 29-30-31, 9:30 walk in, 10:00 start, 17:00 end Buy your tickets for the weekends (E250 ex VAT) here: https://oscarwestravanholthe.com/product/introductieweekend/

*"As Miranda Priestly nears retirement, she reunites with Andy Sachs to face off against her former assistant turned rival: Emily Charlton."* **Directed by:** David Frankel **Starring:** Meryl Streep, Anne Hathaway, Emily Blunt, Justin Theroux, Kenneth Branagh & Stanley Tucci 🎥 Trailer: [Watch here](https://www.youtube.com/watch?v=e9HXmMnUEdE) 🕒 **HOW IT WORKS** The host will **reserve seats in advance** so we can all sit together and enjoy the movie as a group. When you arrive, the host will confirm the booking and let everyone know when it’s time to **pay for tickets together at the cinema (via cash, card or Pathé Unlimited)** — no advance purchase needed. Just show up on time and be ready for a fun movie night! 🍹 **DRINKS AFTER THE MOVIE** After the movie, we’ll head to a nearby café or bar to relax, chat about the movie, and get to know each other better. Everyone’s welcome to join — it’s always a great way to end the night! 💬 **Join our WhatsApp group** to stay updated on upcoming movie nights and connect with fellow members 👉🏽 [Join here](https://chat.whatsapp.com/BQlMgF1ybMCACMjFvAQBaf?mode=gi_t)

BACK TO COFFEE ROOM AGAIN! Welcome to Appsterdam. Whether you are a seasoned programmer or learning to code Apps, wouldn’t it be cool to run by your challenge with another programmer when you get stuck? Or you have questions, or simply want to be in the environment of other like-minded friends while you work on your project? Welcome to Appsterdam. Bring your laptop and get feedback, encouragement and support, no matter what level you are at. Share and contribute. Get guidance. Feel good. All levels are welcome, so don’t be shy. In the future we plan to have break-out sessions where we will have short talks on valuable topics and also conduct mini-hackathons where all of us get to participate and learn together. Maike and Daniel are super committed to have an inspired group. We start at 9:30 and end at 11:30 sharp, so some a bit closer to 9:30 to make sure you get the help you desire. Just ask and maybe we can help you with: • Android Development • iOS Development • Flutter Development • C++ • JavaScript • Python • Rust • UX/UI Design (Adobe XD, Balsamiq, Keynote, Sketch, Figma)

What is a Mandala? Mandalas are more than just beautiful patterns; they are ancient symbols known for their healing qualities. They form a basis for many spiritual and cosmic theories, representing the universe and the self. Creating a mandala is a meditative practice—a way of connecting with your roots, enhancing self-awareness, and finding center in a busy world. What Can You Expect? In this intimate, hands-on session, we go beyond "painting" to explore the Theme: Your Color, Your Story. You will: - Learn the Basics: Master foundational techniques using dotting tools and creating perfect symmetry. - Explore Symbolism: Understand how colors like blue symbolize healing and wisdom. - Personalize Your Art: Select a color palette that resonates with your personal energy. - Finish a Masterpiece: Walk away with your own vibrant, finished canvas. Who is This For? Everyone. Whether you are a seasoned artist or haven't picked up a brush since primary school, this workshop is for you. If you are looking to slow down, decompress, and spend a few hours in a supportive, creative environment, you’ll feel right at home. Details at a Glance 📅 Date: May 3rd ⏳ Duration: 2 Hours of mindful creation 📍 Location: Wannakam, Amsterdam 🧘 Level: Beginner-friendly (All materials provided) ☕ Vibe: Relaxed cafe vibes with a small, intimate group Ready to find your rhythm? Only 10 seats available

**Founders Running Club** (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. We like to be comfortable when we run and finish with coffee and conversations. Choose your pace or follow a pacer—pets, friends, family, are welcome. 🗓️ Launched in San Francisco, July 16, 2022 🌍 Now in 35+ cities 📅 Running + Networking events + Community **Join the community** [http://foundersrc.com/chats](http://foundersrc.com/chats) **Stay updated**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/) Podcast [http://podcast.foundersrc.com/](http://podcast.foundersrc.com/) LinkedIn [http://linkedin.com/company/foundersrc/](http://linkedin.com/company/foundersrc/) Strava [http://strava.com/clubs/foundersRC](http://strava.com/clubs/foundersRC) Website [http://foundersrc.com/](http://foundersrc.com/)

Training for VTAG HS3 NEVOBO players only

Hello everyone! Barring any unexpected developments, on the 2nd of May 2026, Saturdice will open its doors between 11:30 and 18:30 at Kindervreugd Haarlem. The address is Godfried van Bouillonstraat 70, 2033 NH Haarlem. There is a bicycle rack, and multiple bus stops nearby. Parking is free in the surrounding neighborhood, though availability cannot be guaranteed. Reserving a spot is mandatory. Please be considerate: capacity is limited, so if you are unable to attend, cancel your reservation as soon as possible to make room for others. The entrance fee is €3. All payments are cash only. For more information, visit our website at https://saturdice.nl Hope to see you there!

Dear Tribe, We started with love and authentic connection. We moved through self-worth and performance. We sat together with the loneliness nobody talks about. Tonight, we close the arc. The question underneath all of it was always the same one: what does it cost you to never fully be *known*? Not appreciated. Not admired. Known — by someone who has seen you doubt, change direction, and fail quietly, and still chose to stay. This is the fourth and final session of the Being Seen series. The same room. The same quality of conversation. One last evening that has been building since we began. I'll also be sharing something I've been building quietly — a structured experience for people who want growth that is witnessed, not just intended. If you've been in the room before, you already sense what it is. **Free. Intimate. 15 people maximum. RSVP required.** Cheers, Dev, [maisonmagnetique.com](https://maisonmagnetique.com/) [LinkedIn](https://www.linkedin.com/in/debrupbhattacharya/)

This is a laid-back meetup for anyone interested in **functional programming**. The goal is to connect, share knowledge, and discuss FP concepts in a friendly environment. Bring your programs, questions, and topics to share—or just come by and be curious! I like Elm, Haskell, Swift, TypeScript, and Unison, but I’m open to other language suggestions. We gather on the 7th floor of OBA Oosterdok. Please find the organizer with Haskell/Elm/Unison stickers on a Mac. This meetup is still in an experimental phase, so the format and focus may evolve. Let’s see where it goes and build a great community together.

We're having another Rust Developer Meetup and this time we're being hosted by JetBrains in their Amsterdam office in Zuid. This meetup is open to anybody who has an interest in the Rust programming language. We are planning two great talk for you all to enjoy! 18:30 Doors open with pizza and drinks 19:00-19:30 Yorick Peterse: Developing Inko with Rust 19:30-20:00 More drinks and pizza 20:00 Nationale Dodenherdenking 20:02-20:30 Tim de Jager: Building the package manager Pixi JetBrains is providing food and beverages along with hosting the event. JetBrains is a cutting-edge software vendor specializing in the creation of intelligent development tools and have recently launched RustRover, a dedicated Rust development IDE.

Hello, Kotlin enthusiasts! Our next MeetUp will take place at the Xebia office in Amsterdam on 13 May. **📍 Location:** [Xebia Netherlands - Amsterdam - Wibautstraat](https://maps.app.goo.gl/bPqMFCHSgTvneVjV8) Join us on an evening filled with tasty food, refreshing drinks, and insightful Kotlin discussions. Make sure to press the RSVP button! \-\-\- **🕒 Timeline:** • 17:45 - Doors open, food and drinks 🍕 • 18:30 - Opening 💻 • 18:40 - **Making @Transactional Play Nice with Kotlin Rich Errors and Either** **-** [Tjalling Ran](https://www.linkedin.com/in/tjallingran/) • 19:30 - **Quick break 🚽** • 19:40 - **How to supercharge your knowledge base with Retrieval Augmented Generation (RAG)** - [Jamie Craane](https://www.linkedin.com/in/jcraane/) 💻 • 20:25 - Closing 💻 • 20:30 - Chats & Drinks 👥 \-\-\- Title: **Making @Transactional Play Nice with Kotlin Rich Errors and Either** @Transactional rolls back on exceptions — but what if your error is a value? Functional error handling patterns like Arrow’s Either.Left or Kotlin’s upcoming Rich Errors let you model errors as return values instead of throwing exceptions, making failure explicit and strongly typed in your function signatures. The downside: your @Transactional would commit even on an error. This talk shows how to solve that with Spring AOP, so you can adopt functional error handling in an existing Spring Boot codebase without breaking your @Transactional behavior. Bio: Tjalling Ran is a back-end developer at Maqqie, where he works on public APIs, backoffice tooling, and CLA compliance, bridging technical implementation and technical and non-technical stakeholders alike. He has a passion for writing expressive and unambiguous code by leveraging the type system and naming things well. His day-to-day stack is Kotlin with Spring, OpenAPI, and JPA. Earlier in his career he worked on code generators with Xtend, a language that felt refreshingly modern compared to Java at the time, which made Kotlin a natural fit. Title: **How to supercharge your knowledge base with Retrieval Augmented Generation (RAG)** Abstract Your notes, documents, and images contain a wealth of knowledge — but finding the right piece at the right moment can be surprisingly hard. What if you could search your personal knowledge base the same way you talk to an AI assistant? In this talk, we’ll explore how Retrieval-Augmented Generation (RAG) can supercharge your personal knowledge base. You’ll learn how vector embeddings are created, how they are stored, and how they power an end-to-end RAG retrieval workflow. Along the way, we’ll demystify what embeddings actually are and why they work so well for semantic search. But we won’t stop at text. We’ll also integrate **image embeddings** into the workflow, enabling you to query your own photos and screenshots using natural language. Finally, we’ll tackle an often overlooked challenge: **protecting sensitive information**. You’ll see practical techniques for preventing confidential data from being sent to external embedding providers. By the end of the session, you’ll understand how to build a powerful, privacy-aware RAG system that turns your personal data into an AI-searchable knowledge engine. Bio: With over 20 years of IT experience, Jamie Craane designs and develops software for a wide range of organizations, from large enterprises to startups and SaaS services. Working for Moxie-IT, Jamie focuses on the entire value chain: from architecture and technology to software development, deployment and management, and improving the performance of development teams. Adding value and providing insight for everyone involved are central to his approach. Fast, secure, and automated delivery are essential to his approach. Jamie combines innovation with proven technologies and closely follows developments in Artificial Intelligence. He doesn’t shy away from challenges and enjoys sharing his knowledge with teams and the community. \-\-\- **RSVP Now!** Don't forget to RSVP to secure your seat—spots are limited! We can't wait to see you there and discuss the future of Kotlin and software architecture.

**Hi Everyone!** **Details:** This is the only Shrinky Dink workshop experience in Amsterdam! Shrinky dinks is an art form that uses sheets of special plastic that shrink and contract when they are heated. The sheets can be drawn on and coloured with marker pens and cut with scissors. When they are heated they shrink into cute little charms that can be made into key chains, earings, lapel pin badges and fridge magnet. These were really popularity in the 1980s but they are currently making a come back! Draw you favourite cartoon character or picture on the plastic and then shrink it. Cover it in UV resin to dry and then attaché them to earring badges pins and keychains! Make beautiful and unique gifts for your loved ones. (Click on this Meetup's Photo Gallery to see more pictures). **Date:** The workshops are on the second Sunday of every month at 1:15pm. **Workshop Description:** The workshop is 2-3 hours All equipment, materials and instructions is included. It is a good idea to have an idea about what character you would like to draw and make into a shrinky dink. Maybe Hello Kitty? Cinnamoroll? Buzz Lightyear? Pikachu? Lilo & Stitch? Once you have decided what you want to draw, print it out or save a picture to your smartphone or tablet and bring it to the workshop. If you can’t decide, we have a mini library of books teaching you how to draw cute / kawaii animals and popular cartoon characters that you can use for inspiration. We also have a selection of pre-printed templates of popular characters you can use to trace. The workshop will start with an introduction and will cover the following topic. 1\. How to draw\, trace and colour on the shrink dink sheets\. 2\. How to trace using you phone or tablet\. 3\. How to cut and shape shrink dinks\. 4\. How to heat them and keep them flat\. 5\. Applying UV resin and how to cure them\. 6.Attaching charm to earing hoops, keychains, badge pin and magnets. 7\. Troubleshooting common problems\. Curling\, smudges & rough edges\. The workshop is a fun and relaxing afternoon of hands on art and craft. It wil be a fun time of crafting, laughing and chatting with people in a nice environment with an excellent soundtrack. An apron and gloves are provided but it is recommended to wear old or dark coloured clothes. **Venue location:** [Maakplaats Room](https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5 "https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5") [1st Floor](https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5 "https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5") **[OBA CC Amstel](https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5 "https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5")** [Cullinanplein 1,](https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5 "https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5") [1074 JM](https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5 "https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5") [Amsterdam](https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5 "https://maps.app.goo.gl/V9H9ya9xKFpNKt7s5") **Cost and payment:** €30 for four designs. You will be given one A5 sheet of shrinky dink paper. From this sheet you can cut it into 4 piece to make 4 designs. Select 4 accessories. **Accessories:** 1\. Keychain 2\. Ball bead chain 3\. lapel pin backing 4\. pin badge backing 5\. Earring hook 6\. fridge magnet 7\. Crocs shoes jibbitz charms 8\. Crocs shoes LED flashing jibbitz charms \(addtional €1 per flashing module\) If you require additional shrink dink sheets or accessories they can be purchased on the day. The workshop has a maximum of 10 people as such your place will only be confirmed once payment has been made. **Payment:** Please email me at [origamicrane@gmail.com ](http://mailto:origamicrane@gmail.com/)before making payment Please make payment to the following account Name: Samuel Tsang IBAN:NL41 ABNA 0248 6878 40 Payment reference: **[your full name],** Shrinky Dinks **[Month]** **Refund and cancellations:** 100% refund if cancelled at least 7 days in advance. 50% refund if cancellation is less then 7 days. No refund if cancellation is less than 48 hours before the workshop. In the unlikely event that I need to cancel the workshop I will automatically issue full refunds within 24 hours. Let me know if you have any questions. **Additional information:** Please note that this is a hand on crafting session. We will be very happy to guide and assist you but we can not do the drawing and decorating for you. You are purchasing an arts and craft activity with instruction, material and tools provided. The resulting artwork you create is dependant on your own skill and creativity, we can not be held responsible if you are unhappy with the end result. The workshop is suitable for complete beginners. Children are welcome to attend but we only recommend the workshop for children over 10 years old as it require several hours of concentration and fine motor skills. Please note children must be accompanied by a responsible adult during the workshop. We are not a child minding services and can not take responsibility for children.

Hey folks, Join us on May 6 for a React meetup where we’ll explore how modern web engineering is evolving — starting with a fresh look at how we deploy Next.js applications beyond traditional setups, and what new tooling makes possible today. **🗣 Call for Proposals** Have an idea or story to share? Submit your talk proposal through our [CFP form](https://github.com/GitNation/meetups/issues/new?template=talk-proposal.yml) and take the stage at one of our upcoming meetups! **🤝 Organized by** This event made possible thanks to the support from [React Summit](https://reactsummit.com/), [JSNation](https://jsnation.com/) and [TechLead Conf](https://techleadconf.com/) organizers – [GitNation](https://gitnation.com/). **🤝 Sponsored by** Huge thanks to our friends [Sentry](https://sentry.io/welcome/)! Sentry is the only app monitoring platform built for developers that gets to the root cause for every issue. For software teams, Sentry is essential for monitoring application code quality. From Error tracking to Performance monitoring, developers can see clearer & solve quicker — from frontend to backend. **🤝 Want to support our community?** We’re looking for venue partners and sponsors for future meetups. Let’s discuss collaboration — [contact us](https://docs.google.com/forms/d/1raP_Z-AhQS1CDASooPoBsmb0_Oq5wzXjeF_u9dVEw0c/edit)! **🕑 Event Schedule** 18:30 - Doors open - snacks, beer, socialization 19:00 - Intro and announcements **19:10 - Vinext: Deploy Next.js Without Next.js - [Jan Peer](https://www.linkedin.com/in/jpeer/)** **19.35 - Modernizing a Codebase While Delivering Features - [Bora Semiz](https://www.linkedin.com/in/bora-semiz-b7914090/)** 20:00 - Break with drinks **20:15 -** **Don't .gitignore Mental Health - [Frédéric Harper](https://www.linkedin.com/in/fredericharper/)** 20:40 - Networking, Open Mic Lightning Talks Mingle until 21:30pm 🗣️ **Talks** **➡️ Vinext: Deploy Next.js Without Next.js - [Jan Peer](https://www.linkedin.com/in/jpeer/)** *Next.js is a great framework - until you want to deploy it somewhere that isn't Vercel. vinext is a Vite plugin from Cloudflare that reimplements the Next.js API surface from scratch, so your existing app runs everywhere with a single command. In this talk, we'll look at why this exists, how Cloudflare built it in a week using AI, and how close to "drop-in replacement" it actually gets.* **➡️ Modernizing a Codebase While Delivering Features - [Bora Semiz](https://www.linkedin.com/in/bora-semiz-b7914090/)** *An opinion and methodologies on how to modernize an outdated and unmaintained codebase while at the same time delivering features. We will also explore how AI can support modernizing a legacy codebase.* **➡️ Don't .gitignore Mental Health - [Frédéric Harper](https://www.linkedin.com/in/fredericharper/)** *⚠️ Content Warning ⚠️* *Depression, dark thoughts, anxiety – These are some of the words that most of us would like to add to our ignore file. Discussing mental health is still taboo in our society, and it’s even more so in the developer ecosystem, where we pride ourselves on working long hours and our lack of sleep.* *More than ever, we need to talk about mental health! This is why I want to share my experience with depression, general anxiety, ADHD, and experience volunteering at a suicide prevention hotline. Along with my thoughts on how we can improve the situation, I’ll be sharing some tips to help people be more open about these topics and issues – more importantly, I want to touch on how those struggling can ask for help and assistance when needed.* — **👍 Code of Conduct** By registering for this event you agree to comply with [our CoC](https://portal.gitnation.org/coc) **📩 Contact** events@gitnation.org [https://twitter.com/ReactSummit](https://twitter.com/ReactSummit) [https://bsky.app/profile/reactsummit.gitnation.org](https://bsky.app/profile/reactsummit.gitnation.org) [http://youtube.com/ReactConferences](http://youtube.com/ReactConferences)

🍵 Authentic Japanese Tea Ceremony & Matcha Workshop Amsterdam **About this Event** Step out of the buzzing streets of Amsterdam and into a world of "Wa, Kei, Sei, Jaku" (Harmony, Respect, Purity, and Tranquility). Whether you are a Japanese culture enthusiast, a matcha lover, or simply looking for a moment of mindfulness, our traditional Tea Ceremony (Chado) offers a unique sanctuary. Located in our authentic Tatami room in Buitenveldert, we bring the heart of Kyoto to Amsterdam. **What to Expect?** \* The Ritual: Observe a formal traditional tea preparation by a trained practitioner. \* The Taste: Enjoy premium Uji Matcha paired with seasonal Wagashi (traditional Japanese sweets). \* The Experience: Learn the basics of tea etiquette—how to bow, how to hold the bowl, and the philosophy behind the movements. \* Hands-on: You will have the opportunity to learn how to do yoyr own Matcha Tea Ceremony under our guidance. **Why Join Us?** \* Authenticity: We use high-quality seasonal tools and a traditional setting. \* **Small Groups: Limited spots (max 1-3 people) to ensure an intimate and peaceful atmosphere (You can create your own group of 1 to 3p).** \* Community: Meet like-minded people interested in Japanese arts, Zen, and culture. Practical Information \* 📍 Location: Buitenveldert, Amsterdam. \* 🕒 Duration: 75 minutes. \* 🧦 Dress Code: Casual but respectful. No rings, because you are drinking from very precious bowls. **How to Reserve** RSVP on Meetup does not guarantee your booking. **Please send a direct message, send us a message or call us.** **Tel.: 020-6122727** **Email: katakurawblc@gmail.com** Contribution: €130,00 per group(1 to 3p). You can create your own group(3p max) (includes tea and sweets)

[This event is a special collaboration between the AI Native Amsterdam meetup and the Adyen Developer meetup.](https://www.meetup.com/ai-native-amsterdam/events/313505357/) **[!]Please sign-up on [https://www.meetup.com/ai-native-amsterdam/events/313505357/](https://www.meetup.com/ai-native-amsterdam/events/313505357/)** We are thrilled to welcome you to our 10th edition of the AI Native Netherlands, hosted in the [Adyen](https://adyen.com) headquarters, Amsterdam! This is a joint meetup between [Adyen Developer Events and Meetups](https://www.meetup.com/eu-adyen-developer-events-and-meetups/) and [AI Native Netherlands meetup](https://www.meetup.com/ai-native-amsterdam/) groups. At the end of the evening, we're adding another Q&A panel. After the talks, you can submit questions online about what was just presented. The speakers will answer them live. Adyen loves supporting the Dutch AI engineering community. **We’ll cover:** * Multi-layer evaluators and human-in-the-loop safeguards for production LLM systems * Failure modes and silent quality degradation in agentic pipelines * Quality engineering and monitoring for production LLM systems * Building and deploying foundational models at trillion-token scale * Training infrastructure, pre-training at trillion-token scale, and meeting strict production SLAs * A structured panel discussion where your questions about the talks drive the technical deep dive **Speaker 1:** **[Ronny Roeller](https://www.linkedin.com/in/ronnyroeller/)** **(NEXT AI)** Ronny is CTO and Co-Founder of NEXT AI — a customer insights platform for the AI era. Launched in April 2023, clients include Deel, Bosch, Generali, Rituals, Action, and others. He studied Computer Science at VU Amsterdam and works on building scalable, production-ready AI systems. **Talk: From Prompts to Production:** **Engineering Quality in LLM-Based Systems** Building systems around large language models is fundamentally different from traditional software. Outputs are probabilistic, data-dependent, and costly to compute. Deterministic QA approaches quickly break down. In this talk, Ronny will share how production-grade quality was engineered for LLM workflows using multi-layer evaluators, real customer datasets, and human-in-the-loop safeguards. He will walk through concrete failure modes encountered in production, how silent quality degradation emerged over time, and the architectural patterns that restored reliability. The focus is on practical techniques to measure, monitor, and continuously improve LLM system quality beyond prompt tuning. **Speaker 2: [Hanna van der Vlis](https://www.linkedin.com/in/hanna-van-der-vlis-5a6b7212a/) (Adyen)** Hanna van der Vlis is an AI research engineer at Adyen, a payment processor that handles over 40B transactions annually. She focuses on deep learning research, training infrastructure, and building foundational models. She is passionate about solving large-scale engineering challenges, deploying AI to optimize complex systems and driving real-world impact. **Talk: Towards The Adyen Foundational Model** Traditional machine learning in the payments industry relies heavily on point-in-time information silos and Boosted Trees. This approach is increasingly constrained by manual feature engineering and limited label availability. In this talk, Hanna will outline Adyen’s transition toward a unified Foundational Model by rethinking payment sequences as a language problem. She will walk through the engineering challenges of pre-training a shared backbone on up to 51.2 trillion tokens, overcoming compute bottlenecks, and fine-tuning for downstream tasks such as fraud detection and authentication. The focus is on the practical realities of developing and deploying these large-scale models while meeting strict sub-30ms SLAs in production. **Agenda:** **17:45** — Arrival, food & drinks **18:30** — Talk \#1 \| Ronny Roeller **19:15** — Talk \#2 \| Hanna van der Vlis **20:00** — Panel discussion: Open conversation & audience Q&A **20:30** — Networking & more drinks **20:45** — Wrapping up **What to bring:** Just curiosity and questions. If you are working on LLM workflows, foundational models, training infrastructure, or sub-30ms production SLAs, we would love to hear your technical questions during the panel discussion. **Who is this for:** Platform engineers, AI/ML engineers, SREs, architects, and engineering leaders focused on building and validating reliable AI systems in production. **Where to find us:** Adyen, Simon Carmiggeltstraat 6-50, Amsterdam (meet at the reception; you will be brought to the 11th floor of the office building where the event will take place).