🇳🇱 Tech Events in Netherlands

Cloud conference in Amsterdam, Netherlands

AWS conference in Utrecht, Netherlands

Do not RSVP here. Free tickets are available at: https://www.azurefest.nl/tickets

Check the agenda and speakers at: https://www.azurefest.nl

Azure Fest NL is a free, single day, in-person community event for all things Azure. We bring together world-class local and international speakers sharing real world experiences, best practices and the latest developments on the Azure platform.

De landelijke Power BI gebruikersgroep komt naar Groningen! En wij helpen mee...

Wil je komen, schrijf je dan in op de Power BI usergroup website:
PBIG Avondsessie - Ilionx

Tekst van de website van de PBIG:

Op 23 september 2026 organiseren we een inspirerende maandelijkse avondsessie met een programma dat je niet wilt missen!
We zijn trots dat we voor deze sessie te gast mogen zijn bij Ilionx in Groningen, een locatie die perfect past bij de innovatieve en dynamische sfeer van deze bijeenkomsten. De sprekers delen hun inzichten, ervaringen en expertise rondom de nieuwste ontwikkelingen in Power BI, Fabric, data, BI en analytics. Het belooft een avond te worden vol praktische tips, verrassende ideeën en waardevolle discussies die je direct kunt toepassen in je eigen werk. Er zijn slechts 45 plekken beschikbaar, dus zorg dat je er op tijd bij bent! Dit is jouw kans om deel te nemen aan een avond vol inspiratie én om te netwerken met andere professionals uit het veld.

• 17:00 - 18:30 Aankomst & eten / drankje
• 18:30 - 19:30 Marjolein Opsteegh - 10 tips voor een gebruiksvriendelijker Power BI dashboard (NL)
• 19:30 - 20:00 Pauze
• 20:00 - 21:00 Simon van Zessen - Self Service BI bij het CJIB (NL)
• 21:00 - 21:30 Borrel & Netwerken

Schrijf je hier in
PBIG Avondsessie - Ilionx

Je hoeft je dus niet hier op meetup aan te melden.

​📍 StartupDock, Singel 126 - Amsterdam
🕙 17:00–19:00 - Sessions
🥂 19:00 - 21:00 - Rooftop Networking, Bites & Drinks
👉 RSVP Here: https://luma.com/x3ksuigr

​A high-signal gathering for Engineering Leaders, CTOs and product leaders shaping how engineering Teams become next.

​Expect engaging sessions, deep dives & conversations on:

1️⃣ Architecting for engineering velocity by Joel Milligan, Founding AI Engineer at Neno
As a team of 8 engineers at Neno, last month we did a total of 322 PRs, with 266 production deploys. How did we do it? And what are the systems that enable such a high throughput?

I’ll use this talk to cover how we built from 0 and scaled into our recent 6.6 million seed round while spending almost nothing on infrastructure

2️⃣ Guarding consistency and reliability in AI workflows by Gert Hengeveld, Engineer at Storybook.
Storybook offers skills and MCP tools to ensure proper component reuse in front-end applications, but AI is inherently random. How do we make sure agents evaluate our skills and workflow descriptions to yield consistent results reliably? In this talk I'll explain the concept of evals, and how to run them in CI to guard against inevitable regressions.

​This is not another mixer. This is where the next AI relationships begin.

​🎟 Limited seats. Application-only access.
👉 Apply to attend right now!

On September 24, 2026, TrueFullstaq returns with the 5th edition of Edgecase — the largest Kubernetes-focused event in the Netherlands.
Join 400+ cloud native professionals, platform engineers, architects, CTOs, and platform leaders at the brand-new Gooiland venue in Hilversum.

Easily accessible by train and with parking just around the corner.
Hosted by Bart Farrell, Edgecase combines deep technical content with strategic insight. Expect top industry speakers, advanced platform engineering sessions, and sharp discussions on cloud native operations, emerging trends, and digital sovereignty.

Special discount for this meetup members, free access pass with the code EC26-DYONEFRIEND !

We’re back with another AI in Life Sciences meetup!

Whether you’re a researcher, data scientist, startup founder, or simply curious about how AI is shaping the future of healthcare and biotech, you’re welcome to join us for an evening of learning, discussion, and networking.

16:30 - Welcome snacks and drinks

Barend Mons - A Dutch molecular biologist and leading FAIR data expert whose work spans malaria research, biosemantics, advanced data stewardship, scholarly collaboration, nanopublications, and knowledge-graph-based discovery. A professor at Leiden University Medical Center and a key founder of the FAIR data and GO FAIR movements, he has also led international research-data initiatives, served as CODATA president, and was knighted in 2024 for his scientific contributions.

His talk will focus on two parts:
1. FAIR as in Fully AI Ready: How machine-actionable data can serve as input for LLMs (and more advanced AI systems), and how FAIR-compliant conceptual models can be used to train AI models to reduce hallucinations. These conceptual models can also act as a plausibility filter for AI-generated output, contributing to more reliable results and supporting explainable AI (XAI).
2. How the LIFES Association brings stakeholders together: How LIFES connects a wide range of stakeholders, including AI companies, that are involved in these developments and/or are building the infrastructure and applications needed to support them.

Maryia Zhyrko - Maria is an MSc Computer Science student at Leiden University whose research focuses on Natural Language Processing, Clinical NLP, Computational Social Science, and Generative AI. Alongside her studies, she works as a Solutions Engineer, building scalable AI applications with LLM integrations and Retrieval-Augmented Generation pipelines.

Maryia will talk about DreamerNLplus, an interpretable local-AI framework for analysing social-media timelines to identify mental-health signals and changes over time. She will explain how rules, retrieval-augmented generation, and language models can be combined to produce more transparent, privacy-conscious insights while keeping sensitive data under local control.

📣 Free & open to the community

Are you happy to share with the community some interesting research project or innovation you are working on in the field of AI in Life Sciences during our Meetup - reach out to mmbrela@datapebbles.com

A new meetup in the South!
Have you ever wondered about all the places Kubernetes is running nowadays—and under what circumstances?
Join us for a talk about running Kubernetes on a container ship, followed by a deep dive into finding an upstream kernel bug through debugging K8s networking !

The program will go as this:

• 17:00-18:00 Walk-in
• 18:00-18:05 Welcome
• 18:05-18:50 1st Talk: Pascal Widdershoven (Kabisa) Running k8s at sea
• 18:50-19:30 Pizzas
• 19:30-20:15 2nd Talk: Manuel Mascarenhas & Ronald van Zandvoort (ASML): Taking flight with Cilium eBPF – Is that you Icarus?
• 20:15 - 21:30 Networking & drinks
• 21:30 End

1st Talk:
Title: Running k8s at sea

Description:
While keeping your K8s infrastructure running smoothly on land is one thing, taking it out to open waters requires a complete sea-change in engineering. High latency, intermittent connectivity, limited edge power, and harsh physical environments mean you can’t just rely on your standard cloud blueprints when you’re literally floating on the ocean.

Speaker: Pascal Widdershoven & Luk van den Borne

2nd Talk:
Title: How to find a kernel network bug

Description:
The power of the kernel in the palm of your
hands comes with great responsibility.
Ever dove so deep into networking for months on end to find a obscure bug that is happening to your systems with no end in sight on what the problem is ?
Our second speakers will give you there horror story about finding and dealing with strange and obscure network bugs that eventually where tracked down to a Linux kernel bug.

Speaker: Manuel Mascarenhas & Ronald van Zandvoort

Photography/Video consent:
We will be taking photos and videos during the event and will use these photos and videos for social media and promotional materials. By coming to the meet-up, you give us your consent to take photos and videos of you.

Code of Conduct:
All members are required to agree with the Berlin Code of Conduct.

Stay in touch:
Please get in touch on the CNCF #netherlands slack channel for any questions (we're also looking for co-organizers, especially in other cities). Please also don't forget to join the official CNCF community here

*** ALL SESSIONS ARE PRESENTED IN DUTCH ***

Donderdag 24 september 2026 zijn we te gast bij Building Beyond Technology Group in Leusden.

Uiteraard praten we je weer bij over de nieuwste features binnen Entra in onze lightning-sessie. Riemen vast!

Deze avond zullen de sessies in het Nederlands worden gegeven.

PROGRAMMA

17.00 - 18.00 Inloop & Eten

18.00 - 18:10 Welkom door onze host, Building Beyond Technology Group.

18:10 - 18:30 What's new in Entra? Een korte sessie waarin we je bijpraten over de laatste spraakmakende ontwikkelingen in Entra van de afgelopen paar maanden.

18.30 - 19.30 What’s Next After Phishing-Resistant MFA? Securing the Post-Authentication Attack Surface – Erik Loef & Kenneth van Surksum

19.30 - 19.45 Pauze

19.45 - 20.45 Unlocking the Full Potential of Microsoft Entra Internet Access - Tristan Remkes

Veel organisaties beginnen met Microsoft Entra Internet Access om verouderde netwerkbeveiliging te vervangen en de toegang tot Microsoft 365 te verbeteren. Het platform kan echter veel meer dan de meeste organisaties beseffen.

Deze sessie is een praktische deep dive in de mogelijkheden van Entra Internet Access voor betere beveiliging, meer inzicht en meer controle in een moderne werkomgeving. Aan bod komen praktijkscenario's, aandachtspunten bij de uitrol en geavanceerde toepassingen die verder gaan dan traditionele netwerkbeveiliging.

Deelnemers leren hoe ze beter inzicht krijgen in internetverkeer, beveiligingsmaatregelen aanscherpen, gevoelige informatie beschermen en een moderne Zero Trust-architectuur ondersteunen. Ook wordt besproken hoe Entra Internet Access samenwerkt met de rest van het Microsoft-beveiligingsecosysteem, zodat beheer eenvoudiger wordt en de beveiliging verbetert.

Daarnaast delen de sprekers lessen uit klantimplementaties, veelvoorkomende valkuilen en architectuur- en ontwerpkeuzes die een grote invloed kunnen hebben op het succes van een uitrol. De sessie is geschikt voor wie net begint of een bestaande implementatie wil uitbreiden, en biedt praktische handvatten die direct toepasbaar zijn.

De doelgroep bestaat uit architecten, consultants, beheerders en engineers. De boodschap: Entra Internet Access is meer dan een gewone secure web gateway.

20.45 - 21.30 Ruimte om gezellig bij te kletsen onder het genot van een hapje/drankje (om 21.30 sluit ook het pand).

IMPORTANT! Please register on Luma page https://luma.com/cbgt1vw1

Utrecht. AI & Vibe Coding: How Our Workflow Is Changing — Networking Event in Utrecht
Who is this for?
Designers, design engineers, product people — and anyone who has already tried vibe coding and thought: wait, is this becoming part of my actual job?
AI is changing not only the tools we use, but the line between designing and building. In 2026, 35% of individual-contributor designers already spend at least half of their building time working with AI-generated code, and 59% have built their own AI-powered tool or app in the last six months.
What's the format?
No presentations and no workshop this time. We’ll meet, grab a drink, and talk about how our workflows are actually changing: Figma vs. code, vibe coding, design engineering, what we’re building ourselves, what works — and what absolutely doesn’t.
Bring your experience, questions, experiments, or just curiosity.
Agenda

• 20-min case study: How we use AI & vibe coding in our own workflow
• AI, vibe coding & the changing design workflow
• Real experiences, experiments & failures
• Drinks, networking & meeting new (and familiar) people
• Ideas for what we should build, learn or organize together next

When & where
📅 24.09.26
🕛 17:00 - 20:00 Utrecht Time (CET)
📍 The Unusual Space — Vinkenburgstraat 2A, 3512 AB Utrecht
The venue is in central Utrecht, right by the Oudegracht, and is reachable by public transport, bike and car.
​ 🗣 Language: English

This event organised by Projector Institute ambassadors. Projector — online institute for independent education in your profession. https://prjctr.com/

Come solo or bring a friend. The point is simple: meet people who are experimenting with the same changes, compare notes, and figure out where our work is heading next.

Decagon is valued at $4.5 billion and has become one of the standout success stories in Silicon Valley - all in under two years.

On September 24, Ashwin Sreenivas, Co-founder & President of Decagon, joins Whale for a fireside chat with Bas (leading growth at Duna). We'll revisit the decisions that shaped Decagon's earliest days — and what it takes to build a company from 0 to 1.

We'll cover:

• Traversing the idea maze
• Winning the first customers
• Building the team and the culture
• Staying focused in a competitive market
• How to think about defensibility in AI

Agenda

• 17:00 – Doors open
• 17:15 – Fireside chat & Q&A with Ashwin
• 18:00–19:00 – Drinks and bites

About Ashwin Sreenivas [LinkedIn]
Co-founder and President of Decagon, the conversational AI platform powering customer experiences at companies like Avis Budget Group, Block, and Oura. Earlier this year, Decagon raised a $250 million Series D round led by Coatue and Index, tripling its valuation to $4.5 billion in under 6 months.

About Whale 🐳
We bring the next generation of operators and founders together - through expert-led sessions, dinner and hackathons.

From rented AI to owned AI: building your strategic edge
Join us at the AI Innovation Center on High Tech Campus Eindhoven for an evening on ownership and control in AI. Cihangir Kocak (HP) explains why owned AI assets are becoming the new strategic moat, while Remi Baar (Xebia) shares practical insights on self-hosting LLMs when ChatGPT or Claude aren't an option. Food, drinks, and plenty of time to network included.

About the AI Innovation Center:
The AI Innovation Center is the Netherlands’ leading AI hub, providing the right ecosystem of companies, experts, and facilities to help start and scale Next-Gen AI companies.
Located in the heart of High Tech Campus Eindhoven, AI Innovation Center is the homebase for ambitious founders looking to accelerate their growth. They focus on bringing the AI community together through events and education, facilitating the required ecosystem and infrastructure, and offering relevant services to initiate and support AI projects.
The AI Innovation Center is an initiative by High Tech Campus Eindhoven and was co-founded by Philips, Signify, NXP, and ASML. They are home to a community of 40+ residents and 11+ partner companies.

About HP:
For decades, HP has been at the forefront of innovation, helping businesses, creators and individuals unlock new possibilities through technology. Today, the company is playing a pivotal role in the next era of AI, delivering high-performance workstations, AI-powered PCs, and secure computing experiences that enable organisations to adopt AI with confidence and at scale.
As AI becomes embedded into everyday workflows, the focus is shifting from experimentation to real-world implementation. HP is helping drive that transition by empowering enterprises with the tools, infrastructure and trusted technology needed to boost productivity, enhance collaboration and accelerate AI adoption across industries.

Program
- 17:00 – 18:00 Food
- 18:00 – 18:10 Welcome
- 18:10 – 19:00 Cihangir Kocak | Owned Assets is the New AI MOAT
- 19:00 – 19:15 Break
- 19:15 – 20:00 Remi Baar | LLMs on your own hardware, when ChatGPT isn’t an option
- 20:00 – 21:00 Drinks

Cihangir Kocak | Owned Assets is the New AI MOAT
We’ve all felt the anxiety of the AI era: the fear of a sudden bill spike, the worry of a data leak, and the uncertainty of a provider changing the rules overnight. We have been conditioned to believe that the best AI is always "out there" in the cloud, but that convenience comes with a hidden price tag on our sovereignty. We are entering a turning point where the most successful organizations or individuals will be those who reclaim their independence by building private, local intelligence. By moving from "rented" APIs to "owned" assets, you transform AI from a volatile expense into a permanent corporate moat. This isn't just a technical upgrade; it is a strategic necessity to ensure your business remains your own.

About Cihangir Kocak | HP
Cihangir Kocak is known for creating opportunities and building strong ecosystems that empower businesses to thrive. Cihangir has successfully guided numerous organizations through the challenges of digital transformation and strategic business development. He is appreciated for his ability to simplify complex concepts and inspire actionable insights. Cihangir is passionate about enabling business growth in the AI industry for HP, its customers, and partners, ranging from emerging startups to established enterprises.

Remi Baar - LLMs on your own hardware, when ChatGPT isn’t an option
As organizations rush to implement LLMs critical questions about security, compliance, and data sovereignty often surface too late. So, what happens when using an external LLM provider like ChatGPT, Claude, or Gemini simply isn't an option? Self-hosting a private LLM might be a good solution. Self-hosting private LLMs is easier said than done. In this talk we show you best practices to self-host LLMs. We will discuss different hosting strategies, and helping you to understand deployment and maintenance of private LLMs.

By the end, you'll know exactly when self-hosting a private LLM makes sense, when it doesn't, and you will know where to start implementation.

About Remi Baar | Principal Machine Learning Engineer at Xebia
Fifteen years ago, at just 17, Remi launched his own software development company, quickly focusing on the exciting fields of artificial intelligence and data science. Since then, he has held various data science roles across a diverse range of organizations—from startups to multinational corporations, and from government agencies to airlines. His unique blend of software engineering expertise and data science has garnered him recognition and appreciation in each of these positions.

Currently, Remi is a valued member of the Xebia team, collaborating with fellow experts to enhance their collective skills and push the limits of AI.
With a passion for knowledge sharing, Remi eagerly shares his latest insights.

Location: AI Innovation Center, High Tech Campus 5

ArnhemJUG
After the summer break, we are excited to announce that we are welcomed by OpenValue Arnhem for the September meetup.

Agenda

• 17:00 CET walk-in
• 17:30 – 18:30 Food and drinks
• 18:30 – 19:30 talk: The Hexagonal Hangover by Ties van de Ven
• 19:30 – 19:45 break
• 19:45 – 20:45 talk: How to Survive and Thrive as a Dev (Team) in the Exponential Age of AI by Sander Hoogendoorn
• 20:45 – 21:30 drinks

The Hexagonal Hangover
“It depends.” It’s the classic software architect’s answer… but what does it actually depend on? Patterns like Clean and Hexagonal Architecture are great tools, but they are often applied dogmatically. When we automatically wrap simple features in endless layers of abstraction and domain interfaces, we introduce unnecessary distance between related concepts. Those extra layers are intended to decouple, but they can sometimes just make our code harder to navigate, test, and maintain. In this talk, we’ll take a step back from “best practices” and look at the trade-offs behind architectural choices. Using clear Java code samples, we will explore the metrics that help guide these decisions: coupling, cohesion, and distance. Instead of looking for universally “clean” solutions, we’ll discuss how to evaluate what makes sense for your specific context.

About Ties van de Ven
Ties is a software engineer with a passion for concepts, software engineering fundamentals and helping others. He combines these passions by doing public speaking, volunteer work for organisations like Devoxx4kids and codingcoach and working as a Software Quality Expert at Alliander.

How to Survive and Thrive as a Dev (Team) in the Exponential Age of AI
The AI revolution isn’t coming — it’s already altering how we architect products, ship features, and run engineering teams.

During this talk, in his signature charismatic style, Sander Hoogendoorn, CTO at iBOOD.com and a seasoned developer with over four decades of coding experience, doesn’t get stuck in theory or hype, but confronts the pressing issues head-on. You’ll get a no-fluff, grounded view from iBOOD — what we’re already doing with AI, how we built it into our systems, and how it shapes the way we work.

We will walk through some concrete examples, for instance, using the Responses API, adopting the Model Context Protocol (MCP), embedding AI into our e-commerce workflows, and automating genuine parts of our stack. You’ll see where AI accelerates, and where it fails us.

We won’t shy away from the dark side either — vendor lock-in, breaking prompts, model opacity, shifting APIs, and how fast dependency can become fragility. These are real risks that shape architectural and organizational decisions we make daily.

To survive exponential speed, we retired many practices: no Scrum, no rigid ceremonies, no big upfront plans, no pull requests or code reviews. Instead, we embrace working in fluid autonomous microteams, continuous learning, experimentation, and radical adaptability.

Expect an honest, fast-paced, and experience-driven session — mixing architecture, culture, and practical insight — on what it truly takes for developers and teams to survive and thrive in the age of AI.

About Sander Hoogendoorn
Sander Hoogendoorn is an independent dad, avid traveler, and lifelong software developer. Coding since 1978, he still ships code every day — because once a developer, always a developer.

Currently CTO at iBOOD, he has led technology at several companies over the past decade and was once Capgemini's global agile thought leader. But don't expect corporate buzzwords: Sander is known for cutting through the fluff with a post-agile mindset and a healthy disregard for outdated best practices.

He helps teams and organizations break the rules that need breaking — replacing heavyweight processes with lightweight thinking, and agile dogma with actual flow. If something's slowing your team down, chances are he's already ranted about it in a keynote.

Onstage, he brings code, stories, and sharp insights on disruption, continuous delivery, microservices, monads (yes, really), software architecture, and the lost art of writing beautiful code. Fast-paced, thought-provoking, and never just theory.

Sander believes in small steps, critical thinking, and building stuff that works. No silver bullets. Just better software, made by better teams.

Product-minded people gather in Den Haag LeanUX. Join us for knowledge sharing, networking and making friends!

Thirsty Thursday
Two people take the stage instead of one long talk. This way, we can share a variety of perspectives and make it easier for new speakers to participate.

Thanks to our generous sponsor Worth Works we can now host up to 75 people!

Maybe you'd like to give a tiny talk sometime too? Get in touch!

Program

• 17:00 Welcome (with pizza and beer)
• 18:00 Tiny Talks
• 18:45 Drinks / Networking
• 19:30 Closing

The Talks
Will be announced shortly!

Do you want to give a talk?!
We are continuously looking for speakers. Let me know if you want to do a 10-15 minute talk!

🇬🇧 ENGLISH
Talks are in English.

PARKING
Parking is free at the venue. The gate will open after you press the “call” button.

PHOTOGRAPHY / VIDEOGRAPHY PERMISSION
We take photos and videos during the event for our blog posts, social media, and promotional materials. By attending the meetup, you give us permission to use any images or footage you may appear in.

The building is wheelchair accessible. Let us know if you have any other questions!

Dear all! Calling all .NET enthusiasts!

Are you a .NET developer, software architect, or simply curious about smart tech solutions? Then the Meetup on 24 September is for you!

Here’s what we’ll be covering:

• Team 1:  Eric van Doorn and Laura Kramer will share their views on modernizing an old .NET codebase with the help of AI. Many large legacy software systems still need to be migrated to modern .NET, which can be a highly labor-intensive process without AI. A successful approach to such an epical task is using carefully planned phases that have working intermediate results, with AI doing most of the heavy lifting.
• Team 2:  We’ll walk you through real-world examples of AI-driven application development.

Free Pizza & Drinks!
We’ll provide free pizza and drinks during the event.

Who Should Attend:
.NET developers, software architects, and anyone interested in system design and effective implementation strategies. Whether you want to sharpen your technical skills or connect with like-minded professionals, this event is for you.

Program
17:30–18:30 Walk-in with food and drinks
18:30–18:35 Introduction by Lars Visser (TJIP)
18:35–19:05 Eric van Doorn and Laura Kramer
19:05–19:15 Break
19:15–19:45 Team 2
19:45–20:45 Knowledge sharing and networking :-)

See you soon at TJIP, Informaticalaan 5, Delft

Hi there 👋

At Data Tribes, we organise meetups because we truly care about sharing knowledge—both within and beyond our organisation.
We believe that bringing people together to connect, create, learn and grow benefits not only us, but the entire data community.

🏎️ 𝗙𝟭 𝗨𝗡𝗟𝗘𝗔𝗦𝗛𝗘𝗗 🏁
𝗥𝗘𝗔𝗟-𝗧𝗜𝗠𝗘 𝗙𝟭 𝗔𝗡𝗔𝗟𝗬𝗧𝗜𝗖𝗦 // 𝗔𝗚𝗘𝗡𝗧𝗜𝗖 𝗘𝗡𝗚𝗜𝗡𝗘𝗘𝗥𝗜𝗡𝗚
What does “real time” truly mean in the world of Formula 1 - and what happens when a domain expert builds the application with an AI coding agent?
F1 Unleashed is Nelson Sousa’s latest personal project: an application that streams, downloads, visualises and analyses Formula 1 data while the action is still unfolding.
Timing screens. Weather. Telemetry. Strategy insights. Tactical opportunities. Predictions.
Not a Monday-morning explanation of how Sunday’s race was won or lost, but insights when they still matter.

𝗪𝗵𝗮𝘁 𝘁𝗼 𝗲𝘅𝗽𝗲𝗰𝘁
📡 Live Formula 1 timing, weather and telemetry data
📊 Near-real-time race analysis, predictions and strategy insights
⚡ The challenge of reducing latency from one hour to five minutes, five seconds and ultimately under one second
🧠 Why predictive models are only as good—and as fast—as the data pipelines feeding them
🤖 How Nelson used Claude Code as an implementation agent while retaining control over the domain reasoning, architecture and validation
🛠️ An honest look at the possibilities, lessons and limitations of agentic engineering
The AI helped write the application. Nelson decided what it needed to understand.
Whether you are a Formula 1 fan or interested in streaming data, predictive modelling, real-time analytics or AI-assisted software engineering, this meetup is for you.

𝗧𝗵𝗲 𝗮𝗴𝗲𝗻𝗱𝗮
// 18:00 — Doors open
// 18:30 — Drinks and pizza
// 19:00 — Start of the presentation
// Nelson Sousa: 🏎️ 𝗙𝟭 𝗨𝗡𝗟𝗘𝗔𝗦𝗛𝗘𝗗 🏁
// 21:00 — Networking
// 21:30 — End of the meetup
📅 Thursday, 24 September 2026
📍 The Henry, B. Amsterdam — B.1
Johan Huizingalaan 763a, Amsterdam

We look forward to seeing you there!

Greetings,
Data Tribes Inc.

Hello Rubyists! ☀️

It's been awhile 👋Join us this September so we can catch up and enjoy some talks!
This time we'll be back at Catawiki Amsterdam!

Anyone interested in learning more about Ruby and the local tech community is welcome to join!

Program

• 18:00: Doors open, have a drink and some food
• 19:00: Opening statements
• First talk: Stanislav Katkov will share with us his findings regarding documentation in Ruby
• Second talk: TBA
• Socializing and networking

This month's meetup will take place at Catawiki! They will also provide the delicious food and drinks to power us through the evening 😋

There will be no stream this time, so be sure to join in person.

Cheers,
Tom, Arno and Aidan

PS. If you are interested in giving a talk, let us know. Learn more about giving a talk at the Amsterdam Ruby meetup.

Cover photo by Adrien Olichon.

Join in with the latest Amsterdam JUG Meetup at Picnic HQ, Van Marwijk Kooystraat 15, 1114 AG Amsterdam.

Agenda

• 17:30 – Doors Open (and food!)
• 18:00 – 18:45 – "Keynote: How Software-defined Robotics is Rewriting the Physical World" by Daniel Gebler, Picnic CTO
• 18:45 – 19:00 Small Break
• 19:00 – 19:45 - "Part 1: The Gray Factory" by Victor Rentea
• 19:45 – 20:00 Small Break
• 20:00 – 20:45 - "Part 2: Career Reconversion to Agentic Engineer" by Victor Rentea
• 21:00 The End

Abstracts

"Keynote: How Software-defined Robotics is Rewriting the Physical World" by Daniel Gebler, Picnic CTO

Robotics is not primarily a hardware challenge. The hard part is building software that turns imperfect data into reliable decisions and coordinates thousands of moving parts in the physical world. Picnic is building a software-defined grocery operation spanning demand forecasting, inventory, automated fulfilment, warehouse robotics, routing and delivery.

Java/Spring microservices, event-driven workflows, optimisation engines and machine-learning models work together as a distributed cyber-physical system - handling asynchronous events, partial failures, changing state and hard real-world deadlines.

In this keynote, Daniel Gebler, CTO of Picnic, explores how to decompose physical operations into reliable services, coordinate them through events and state, combine probabilistic AI with deterministic rules and guardrails, and use observability, simulation and feedback loops to evolve complex systems safely.

As AI begins to write code, operate tools and make decisions, engineers will increasingly design the boundaries, evaluations, failure handling and ownership models that make these systems trustworthy. A practical deep dive into Java microservices, AI, robotics and the architecture required to make software move the physical world.

"Part 1: The Gray Factory" by Victor Rentea

The most agentified engineering teams of my clients are all converging towards the same workflow, aiming to optimize the code review step while preventing human cognitive debt and skill erosion.

This talk summarizes their practices, teaching actionable steps and milestones to gradually improve the quality of AI-generated code up to a point in which you can safely start decreasing the code review ‘intensity’.

Dark Factories are not built ground up - instead, lights are responsibly dimmed, then turned off one by one, area by area, after observing impeccable code produced consistently.

"Part 2: Career Reconversion to Agentic Engineer" by Victor Rentea

• Identity crisis - who are we?
• Mandatory mindset changes
• What makes a good Agentic Engineer?
• Job Interviews - what matters?
• Skill Erosion
• Team structures
• Cognitive Debt (former Tech Debt)
• Agentic Worklife Calisthenics
• Fastest Reconversion Path
• Helping the Skeptics

Bios

• Daniel Gebler builds the systems that power modern retail and grocery logistics at Picnic. As CTO, he leads the engineering teams responsible for scaling the company’s infrastructure and shaping the technical strategy behind online shopping. His recent work focuses heavily on the practical applications of artificial intelligence in retail.
• Victor Rentea is a Java Champion with extensive experience in training mid-senior developer groups (5000+ developers of 100+ companies). During these intense workshops, Victor gets to debate with very bright engineers about the challenges faced by their projects. Discover how Victor can help you at https://victorrentea.ro: training catalog, consultancy, and YouTube channel.

Join us for an evening of cutting-edge Rust talks, real-world use cases and great conversations hosted at BlockTech. 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!

The schedule is as follows:

• 6:30 - Doors open
• 7:00 - Welcome and announcements
• 7:05 - waffle: "Breaking changes as a social construct"
• 7:35 - Q&A with waffle
• 7:45 - Beers and bites (on us!)
• 8:10 - Gabor Kozar: "The API That Doesn't Return Result"
• 8:40 - Q&A
• 8:50 - Hang out and chat
• 10:00 - Doors close

Our event will be hosted by BlockTech:
BlockTech is a crypto-native trading firm specializing in algorithmic derivatives and spot trading. Since 2018, we’ve combined deep trading expertise with a passion for building cool, high-performance systems in the spirit of open source.

We’re proud to support the Rust community and continue to push the boundaries of real-world applications in crypto and high-performance systems.

Disclaimer:
The talks may be recorded, and there will be photos taken. Please let us know if you do not want to appear in the photos.

Come for the talks. Stay for the beers. Leave inspired!

THEME:
Let's meet for an informative session where you can ask security experts any questions you have in your mind no mater how basic or advanced that is. Every month we try to have a different topic, and there's always time to discuss anything important to you as well!

FAQ:
▶️ The heck is SecTalks?
✔️ SecTalks meetups are about participating in information and cyber security discussions, learning from others, and improving problem-solving skills.

▶️ Where & When is this event? What?
✔️ Every LAST Thursday of the month 18:30 at CIC Rotterdam, (along the Venture Cafe / GHG drinks); SecTalks continues as usual & we still meet at the same place! Doors open at 17:30 - drinks and snacks provided!

▶️ I want to speak at your talk
✔️ Cool, message us here on Meetup.com and get in touch, or on twitter, or be creative!

▶️ Does it cost me something?
✔️ No.

▶️ Cool idea, I want to sponsor the event.
✔️ If you want to sponsor these sessions please get in touch via messages or on twitter with the organizers, Nicolas @nicolasnow

SecTalks takes place at the CIC innovation community - and part of the Venture Cafe Rotterdam gathering which is now (temporarily?) on halt.

Doors for SecTalks open at 17:30 we have drinks (and some snacks). SecTalks session starts at 18:30. If you are there earlier, drop a line so we can connect and socialize more.

Notes:
💡 Got feedback? DM here on Meetup.com or DM on twitter/X @nicolasnow or @xxByte

Space Leiden is a makerspace and hackerspace in the Leiden Lammenschans area. We aim to provide a place where everyone can work, meet, create, experiment, and socialize with like-minded people. It’s a blend of a makerspace, hackerspace, and bar—a community hub with tools, 3D printers, lasercutters, servers, and honeypots for tinkering, hacking, and exploring.

We provide equipment that’s too big, too expensive, or too specialized to have at home—so you can build, break, and learn without limits.

Not familiar with us yet? Drop by, and we’ll be happy to give you a tour and help you get oriented. Have any questions beforehand? You can reach us via Discord or on our social media channels.

Save the date: The monthly Tech Drinks are back on Friday, 28 September.

The Monthly Tech Drinks & Pitching, by Tech Makers, is the meet-up for the Dutch tech and startup community, hosted in Amsterdam. Each month we bring people together to have a drink, pitch ideas, swap stories, share scars, and plot world domination.

Want to pitch your startup? Apply via this form.

Follow Tech Makers here for news about upcoming events, meet fellow founders and potential investors, and join one of the largest startup communities in the Netherlands!

P.S. Looking for a cofounder? Try the matching platform we created, https://findyourcofounder.nl

P.P.S. By registering and attending, you consent to photos, videos and other media being captured by the organisers and partners, and used for documentation, promotional and community purposes connected to Tech Makers.

How can digital technology support craftsmanship without removing the maker from the process? In this lecture, Aslı Aydın Aksan explores the role of digital technology within craft.

Welcome to the official kickoff of the Mentorship Program 2026 with Women in Product NL. As part of the first of 3 workshops forbthe program, we will delve into Navigating Product careers in the Netherlands. Whether you ste new in the country or ling time resident, whether you are a seasoned prodyct manager or just exploring digital careers, this event will help you explore new territories through a handson workshop.

Agenda:
17:30 Doors open, networking.
18:00 Welcome
18:10 - 19:15 Key note speaker and workshops: Managing Your Career, Goal Setting & Networking
19:15 Drinks, bites & networking

Everyone is welcome to this event, although organized by the collaboration of Women in Product NL and Worldline, we want to be inclusive. So if you are not in product profession, or not a woman, you are still welcome to learn and network!

CTO conference in Amsterdam, Netherlands

On 29 September, BrabantJUG will be hosting a meetup at TOPdesk! We have 2 great speakers lined up for you. Geertjan Wielenga will speak about From CRUD to Durable: Adding Temporal Workflows to the Spring Pet Clinic and Tom Cools will join us with a (for now) mystery topic.

Timetable:
17:00 Doors open
18:00 Food
18:50 Introduction
19:00 From CRUD to Durable: Adding Temporal Workflows to the Spring Pet Clinic by Geertjan Wielenga
19:45 Break
20:00 TBD by Tom Cools
20:45 Drinks

From CRUD to Durable: Adding Temporal Workflows to the Spring Pet Clinic
Spring Boot applications excel at handling synchronous CRUD operations, but what happens when you need to send appointment reminders days in advance, manage multi-year vaccination schedules, or orchestrate complex payment workflows that must survive server restarts?

In this talk, we'll transform the classic Spring Pet Clinic application by integrating Temporal.io, the free and open source durable execution platform that makes long-running processes reliable by default.

About Geertjan
Geertjan is a Java Champion, founder of Friends of OpenJDK (Foojay.io), Apache Member and Apache NetBeans PMC Chair, an open source enthusiast, and an independent author, contractor, and consultant, working at Temporal.io, amongst other organizations, after 25 years of fulltime work at Sun Microsystems, Oracle, and Azul.

The rest will remain a surprise for now :)

Dear all,

We are happy to invite you to the next edition of the PostgreSQL User Group NL Meetup on 29 september 2026 in Amsterdam.

This time we have been invited by ABN AMRO to host the event at their offices on the Gustav Mahlerlaan. We are very appreciative of this gesture and would like to thank them for supporting the PostgreSQL community with the venue and the hospitality.

On the agenda we have two great talks. First up is Sebastiaan Mannem, who will take us deep into the PostgreSQL IO subsystem, following data changes from query to datafile and everything that happens in between. Next on the program is Peter Lengkeek, who will share his journey into CloudNativePG (CNPG).

As usual, we have reserved some space in the program for anyone who wants to do a lightning talk. If you are interested, please contact us via a personal message on meetup.com.

We are very grateful for the contributions of both presenters as well as our host, to make this all possible for the PostgreSQL community in the Netherlands.

We hope to meet many of you at the meetup, a moment where PostgreSQL users can connect, share knowledge, and discuss the latest developments in the PostgreSQL ecosystem.

We look forward to a great meetup!
Gerard Zuidweg
Feike Steenbergen

Meetup Program

17:30 – 18:25 — Welcome, Beer & Bites

18:30 — Opening

18:30 – 19:10 Postgres IO internals: Between query and datafile
Sebastiaan Mannem - CTO Nibble IT

Abstract: When a query inserts, updates or deletes data (DML), or objects (DDL), these changes end up in the Postgres datafiles — but not immediately. Where does the data end up in between, and which process(es) take care of that? And why, and how? How does Postgres remain consistent — what does it keep consistent, and what is never consistent? And how does the changed data end up on the standby — how is synchronous replication implemented? These are some deep questions, and we will try to tap into many (if not all) of them, and more, as we follow data changes from query, through the PostgreSQL IO subsystem, until it hits the data files.

About Sebastiaan: Technically driven database, container and cloud specialist. Earned my stripes and was battle hardened by the Dutch Government. As CTO of Nibble-IT I do all I can to make our customers successfull with PostgreSQL, which includes: enable with design, build stuff, enable the next generation of consultants and developers.

— (Very) Short Break —

19:15 – 19:55 — My journey into CNPG – Peter Lengkeek DBA for CloudNativePG – Savepoint

Abstract Getting familiar with CloudNativePG, running PostgreSQL on Kubernetes, is not difficult. Install Kubernetes on your Windows or MacBook and start. Create My first cluster, yes! Going further, is for most PostgreSQL DBA’s a bigger step to take. Learning Kubernetes concepts and all the available tooling, related to CloudNativePG and Kubernetes. Often, I see organizations struggling with the implementation of CloudNativePG as a product, although the have chosen the product on corporate level.
In my presentation I share my journey into CloudNativePG. Hopefully, to support PostgreSQL experts to go the same road. Also, I want to reflect some aspects of the implementation of CloudNativePG in organizations.

About Peter: I started 35 years ago, working with Oracle database technology. Mainly in the role of a Database Administrator and Developer, specialized in the combination of technology and organization.
At the beginning of 2024 I started a consultancy job at a client of OptimaData with PostgreSQL database technology. I jumped into a "pressure cooker" to learn all kind of PostgreSQL knowledge compared to my reference model of Oracle.
Since August 2024 I’m focused on the CloudNativePG operator for PostgreSQL databases on Kubernetes. For me, the way to go! I was several times a guest lecturer for an intro training CloudNativePG, including the Blue Elephant Pack. I'm happy to help organizations and DevOps teams get the most out of CloudNativePG.

19:55 – 20:00 — Lightning Talks

20:00 – 20:30 — Wrap-up and drinks

De tweeënveertigste monthly meetup van Nimma.codes alweer!

We zijn een cross-language user group voor software developers in de regio Arnhem-Nijmegen en komen elke laatste dinsdag van de maand samen om te praten over alles wat met software development te maken heeft. Wees welkom! (ook als je niet programmeert)

Ditmaal zijn we wederom te gast bij de HAN.

Programma

• 17:30 – 18:00 Inloop + food & drinks
• 18:00 – 18:45 Talk 1: Eva Koenders & Thomas Lautenbach - Digitaal Product Paspoort
• 18:45– 19:00 Pauze
• 19:00 – 19:45 Talk 2: Môshe van der Sterre - De 25 crypto-features van een web-request in 2026
• 20:00 - 21:00 Netwerken

We are thrilled to welcome you to our 12th edition of AI Native Netherlands, hosted at the Studytube headquarters in Amsterdam.

In this edition, Pini takes the organisational view of AI coding adoption - how it progresses across an engineering org and the order things tend to break as it scales. Aleksei goes hands-on into the tooling - what happens when you build an MCP server the way the docs suggest, where it falls apart, and the pattern that replaces it.

A massive thank you to our host, Studytube, for their generosity in providing the venue and drinks for this evening and for supporting the Dutch AI engineering community.

We'll cover:

• How AI coding adoption progresses across an engineering org, from first licences toward a mostly automated delivery process
• The order things usually break as adoption scales: coordination, review, testing, context, security boundaries, ownership, CI/CD, and product flow
• Why faster individual developers don't automatically mean faster team delivery
• The platform and infrastructure foundations for scaling AI-generated code safely
• Where traditional MCP tools fit, and where they hit their limits
• Giving a model an API plus a sandboxed code environment instead of writing a new tool for every use case
• Running model-generated code safely: sandboxing, module allowlists, CPU and memory limits, static analysis, and audit logs

Speaker 1: Pini Reznik (re:cinq)
Pini Reznik is a seasoned technology leader with extensive experience in the software industry. He is the CEO and Co-Founder of re:cinq, experts in Cloud Native and AI Native engineering. Former software engineer, Co-Founder of two successful consulting businesses and an O’Reilly author.

Talk: The AI Adoption Ladder: From First Licences to the Dark Factory
AI coding tools make individual developers faster, but many teams discover that delivery does not improve at the same rate. PR volume rises, review queues grow, tests become less convincing, context gets messy, and eventually product and platform bottlenecks become visible. AI did not remove the constraint; it moved it.

This talk introduces the AI Coding Adoption Ladder: a practical model for how engineering teams move from first licences to structured adoption, agentic workflows, and eventually software factory patterns. We will look at the order things usually break - coordination, review, testing, context, security boundaries, ownership, CI/CD, and product flow - and what software and DevOps engineers need to fix before AI-generated code can safely scale.

Speaker 2: Aleksei Moiseev (Studytube)
Aleksei is a software architect and engineer with 20+ years of experience building production systems, from hands-on development to large-scale architecture and platform engineering.

Today, he focuses on agentic AI, designing software factories where LLMs and autonomous agents perform real engineering work. His work spans self-hosted AI infrastructure, multi-agent systems, and the architectural patterns needed to run them reliably in production.

He builds and operates the systems he writes about, with a focus on practical, resilient engineering over hype.

Talk: The MCP Wire
Build an MCP server the way the docs tell you to — one API endpoint, one tool — and it works. Then you ask it to create 1,000 users and wait 25 minutes while it makes 1,000 separate calls. Multi-step workflows turn into long chains. Every new use case is another tool to write, test, and maintain. Adding "bulk" tools just moves the problem around.

Aleksei, an AI Solutions Architect at Studytube, walks through building exactly this server for Studytube's user and team management API, hitting that wall, and arriving at a different pattern: give the model an API and a sandboxed Python environment, and let it write and run code for the task in front of it. Ten tool calls become one short loop, executed once — about two seconds instead of fifteen.

The talk covers where traditional MCP tools still fit (simple, atomic, read-only operations), where code execution takes over (batch jobs, conditional logic, multi-step workflows), and how to run model-generated code safely: sandboxing, module allowlists, CPU and memory limits, static analysis, and full audit logs.

A hands-on talk for anyone building with MCP, or about to.

Agenda:
18:00 — Arrival, food & drinks
18:45 — Talk #1 | Pini Reznik
19:30 — Talk #2 | Aleksei Moiseev
20:15 — Networking & more drinks
21:00 — Wrapping up

What to bring: Just curiosity and your own questions. If you're wrestling with agentic workflows, CI/CD under AI-generated code, or security boundaries as adoption scales — or if you're building with MCP and hitting its limits — bring those.

Who is this for: Platform engineers, AI/ML engineers, SREs, architects, and engineering leaders working on reliable AI systems in production — and anyone building with MCP, or about to.

Where to find us: Studytube, Danzigerkade 17, 1013 AP Amsterdam — Google Maps Link