Bachelors + Degree Professionals

Onze meetups zijn speciaal voor testers die verder willen kijken dan alleen scripts schrijven. De talks zijn door testers, voor testers. Interactief, laagdrempelig en gezellig. We doen niet aan basisintro's of verkooppraatjes maar gaan voor scherpe inhoud (én lekker eten en drinken :-)). *[let op: aanmelden op deze pagina https://heeyoo.nl/blog/qa-meetup-utrecht-25-feb/ of email thomas.wattel@heeyoo.nl]* Deze avond wederom twee uiteenlopende talks op de agenda, hieronder beide talks iets verder uitgewerkt: Talk 1: **Van functioneel naar performance testen binnen je team** Performanceproblemen komen vaak pas laat aan het licht. In de testfase, of nog vervelender: in productie. Terwijl je als tester al veel eerder signalen kunt oppikken. In deze talk laat Nico zien hoe je de stap maakt van puur functioneel testen naar performance testen. We kijken naar hoe je bestaande geautomatiseerde testen kunt inzetten om performance inzichtelijk te maken. Wat kun je realistisch automatiseren? Waar ligt de grens? En hoe zorg je dat performance echt onderdeel wordt van het werk van het ontwikkelteam zelf? Praktisch, herkenbaar en gericht op ownership. Concrete handvatten om performance structureel mee te nemen in je dagelijkse testwerk. Talk 2: **Testautomation in een microservice architectuur: uitdagingen en oplossingen** Microservices beloven snelheid en flexibiliteit, maar maken testautomation er niet per se eenvoudiger op. Waar test je precies? Op welk niveau? En hoe voorkom je dat je test suite net zo complex wordt als je landschap? In deze talk duikt Erik in het toepassen van testautomation binnen een microservice architectuur. Wat zijn de meest voorkomende uitdagingen zoals afhankelijkheden tussen services, testdata en het behouden van vertrouwen in je tests. Geen ideale wereld, maar een talk met oplossingen en praktijkvoorbeelden. Vragen waar we mee aan de slag gaan: Wat gaat vaak mis? Welke keuzes helpen juist? En hoe zorg je dat je teststrategie meegroeit met je architectuur in plaats van erachteraan loopt? **Tijdstip:** Inloop vanaf 17:00u, start om 18:00u en we ronden af om 21:00u **Locatie:** Newtonlaan 201. Er is ruim voldoende parkeergelegenheid in de garage vanaf 16:00u. **Aanmelden:** Meld je aan op deze pagina https://heeyoo.nl/blog/qa-meetup-utrecht-25-feb/ of email thomas.wattel@heeyoo.nl

\*This event will be **ONLINE ONLY** **Are you an experienced tech professional aiming for top-tier roles at MANGA, AI companies, hedge funds or just the next step?** Your experience is solid, but is your CV holding you back? * CV doesn't bring you more interviews ? * Get ghosted often? * Recruiters don't move you forward once they review it? * 100 applications and less than 12 interviews (industry average) Top-tier tech companies receive thousands of applications from qualified candidates. At the senior level, it’s no longer just about listing your skills - it’s about how you frame your impact, leadership, and technical depth. We are bringing in a **Senior Engineer directly from Amazon** to provide insider insights on exactly what hiring managers at major tech firms look for in senior-level applications. **This is not a generic resume workshop.** This is a deep dive into crafting a CV that gets noticed by decision-makers at the highest levels of tech. **What We Will Cover:** * **The MAANG Lens:** How a Senior Amazon Engineer reads a resume * **Impact vs. Duties:** Shifting your CV language to highlight measurable business outcomes rather than just job responsibilities. * **Senior Positioning:** How to effectively structure leadership, architecture, and system design experience. * **The "Red Flags":** Common mistakes that get even highly experienced candidates rejected by ATS or recruiters. **Who Should Attend:** ⚠️ **Please Note:** This event is tailored for **experienced professionals** in the tech industry (e.g., Senior Software Engineers and tech professionals with more than 2 years of experience). **RSVP today to elevate your career prospects.** **Hosted by TopCoding**

We are excited to announce our next Utrecht JUG meetup, featuring talks by Michel Schudel and Ana-Maria Mihalceanu. In the first session, we’ll dive into the art of building **maintainable Spring Boot applications** using the principles of Clean Architecture. You’ll learn how to structure your code so that your domain logic stays clean, testable, and protected from framework and infrastructure concerns — with practical examples you can apply right away. After the break, we’ll shift focus to **JVM performance**. We’ll explore how recent and upcoming Java versions (Java 25 and 26) help tackle slow startup times and long time-to-peak performance, especially in microservices and Kubernetes environments. You’ll gain actionable insights to make your Java services faster, more predictable, and production-ready. Join us for an evening full of practical knowledge, real-world lessons, and great conversations with fellow Java developers! The meetup will be hosted by **Sopra Steria**, Ringwade 1, Nieuwegein Please join us and RSVP! Because of the limited number of seats, please keep your RSVP up-to-date, so we can welcome someone else of you can't make it. Timeschedule: 17:30 Doors open 18:00 Food & Drinks 19:00 Building maintainable Spring Boot apps with Clean Architecture by Michel Schudel 20:00 Break 20:15 Towards Better JVM Performance by Ana-Maria Mihalceanu 21:15 Drinks **Giveaway** 1 JetBrains licence **Talks** **Building maintainable Spring Boot apps with Clean Architecture** Clean Architecture is about separating concerns within your application to keep it maintainable, scalable, and testable. Some call it onion architecture, others call it hexagonal, but in the end they all aim for the same goal: protecting your domain logic from the messy outside world. But how does this work in practice? In this session, we'll build a Spring Boot application together using the principles of Clean Architecture. We'll use the Spring Boot Test framework for clean integration tests and ArchUnit to ensure our squeaky-clean application stays that way by enforcing architectural boundaries. After this session you've learned what Clean Architecture is, and how you can leverage your own applications with it. **Towards Better JVM Performance** Many Java services struggle with slow startup and long time-to-peak performance, painful aspects for microservices and Kubernetes workloads that demand fast scale-up and tight service level objectives. Join this session to learn how to use new optimizations in Java 25 and 26 to accelerate startup and time to peak performance, including Ahead-of-Time object caching with any GC. You’ll leave with actionable steps to make your Java applications start faster, reach peak performance sooner, and stay predictable in production. **Speakers** **Michel Schudel** Michel Schudel has been a passionate Java developer since 1998. Since then, he has seen the good, the bad, and the ugly in Java land. He loves to share his adventures in Java land so others can learn from his experience (and, more importantly, his mistakes!). **Ana-Maria Mihalceanu** Ana is a Java Champion Alumni, Senior Developer Advocate for the Java Platform Group at Oracle, with an extensive background in Java and cloud development, while contributing to Java community growth and events. Her exposure to varied technical challenges involving Java-based frameworks has endowed her with deep insights into the evolution of the JDK tools, practical use, and advanced features.

Hi all! On Wednesdays we welcome you to practice languages! If you want to practice a specific (uncommon) language, please send us a message so we can find some conversation partners for you on our mailing list! We hope to see you in Café Marktzicht! In the last year we had tables for the following languages: * Dutch * English * French * Italian * Spanish * Turkish\* * German\* * Portuguese\* * Danish\* * Norwegian\* * Russian\* * Arabic\* * Chinese\*\* * Japanese\*\* * Indonesian\*\* * * Most likely, but not every week present. \*\* - Rather rare ;-) If your language is not in this list, please let us know! We have a large database of Language Cafe visitors speaking 56 different languages! We might be able to connect you with a person that does speak the language you want to practice. In case you are not in our database yet, please use this form: http://goo.gl/forms/oSCn9Dn8m8

*( English below)* Voordat een bordspel of kaartspel kan worden uitgegeven, moet er veel aan het spel getest worden om zeker te zijn dat het leuk is, duidelijk is en altijd goed werkt. Daarom komen we **elke 2 weken** met spelauteurs uit de regio samen om prototypes van spellen te testen en ze zo beter te maken en misschien ooit wel gepubliceerd te krijgen. Om 8 uur verzamelen we bij [StartUp Nijmegen](https://startupnijmegen.nl/) voor een speltestavond. Afhankelijk van het aantal aanwezigen en prototypes dat er wordt meegenomen (neem zelf ook iets mee als je wilt) vormen we een aantal groepen. Bij kleinere spellen kun je in de loop van de avond van groep wisselen, bij grotere spellen moet je dat even overleggen. **Ook als je zelf** **geen spellen maakt** of een spel hebt dat je wilt testen, ben je natuurlijk van harte welkom. Het is voor ontwerpers heel fijn om de mening van zo veel mogelijk andere mensen te krijgen. En heel eerlijk: het testen van nieuwe spellen is ook gewoon heel leuk! We gaan door tot een uur of 11, maar voel je vrij al eerder naar huis te gaan. Er is **gratis koffie** **en thee** bij StartUp Nijmegen. Voor fris, bier of wijn wordt een kleine bijdrage gevraagd. StartUp Nijmegen ligt tegenover het station. De auto kun je parkeren in de naastgelegen Keizer Karelparkeergarage (50 cent per uur). Er is hier ook een afgesloten fietsenstalling. De testavonden in Nijmegen zijn elke **2e dinsdag** en elke **4e woensdag** van de maand. Zet die dus vast in je agenda (tip: zet met [deze iCal link](https://calendar.google.com/calendar/ical/c_d2267afce516f9296468270649b3f44da6c06cbc0bc3de05f049992373db5f4f%40group.calendar.google.com/public/basic.ics) ze automatisch in je agenda)! Spellenmaakgilde Nijmegen maakt onderdeel van het [Nederlandse Spellenmaakgilde](https://spellenmaakgilde.nl/) en is onderdeel van het SAZ. Je vindt ons daarnaast ook in het #Nijmegen kanaal op de [Discord-server van het Spellenmaakgilde](https://discord.gg/6JzD6Sz2m5). **For English-speaking guests:** Before a board game or card game can be published, it must undergo extensive testing to ensure that it is enjoyable, clear, and always functions properly. Therefore, **every 2 weeks**, we gather with game authors from the region to test prototypes of games, thereby improving them and, perhaps, getting them published someday. At 8 PM, we gather at [StartUp Nijmegen](https://startupnijmegen.nl/) for a game testing evening. Depending on the number of attendees and prototypes brought (feel free to bring something yourself), we form several groups. For smaller games, you can switch groups throughout the evening, but for larger games, you should discuss this. **Even if you** **do not design games** or have a game you want to test, you are, of course, very welcome. It is very beneficial for designers to receive feedback from as many people as possible. And to be honest: testing new games is just a lot of fun! We continue until about 11 PM, but feel free to go home earlier if you wish. There is **free coffee** **and tea** at StartUp Nijmegen. A small contribution is requested for soft drinks, beer, or wine. StartUp Nijmegen is located opposite the station. You can park your car in the adjacent Keizer Karel parking garage (50 cents per hour). There is also a secure bicycle parking facility here. The testing evenings in Nijmegen are every **2nd Tuesday** and **4th Wednesday** of the month. So be sure to mark those in your calendar (tip: automatically add them to your calendar with [this iCal link](https://calendar.google.com/calendar/ical/c_d2267afce516f9296468270649b3f44da6c06cbc0bc3de05f049992373db5f4f@group.calendar.google.com/public/basic.ics))! The Spellenmaakgilde Nijmegen is part of the [Dutch Game Designers Guild](https://spellenmaakgilde.nl/) and is also a part of SAZ. You can also find us in the #Nijmegen channel on the [Discord server of the Game Designers Guild](https://discord.gg/6JzD6Sz2m5). And don't worry if you don't speak Dutch! We regularly have non-Dutch speaking guests, and everyone is welcome to join and have fun with us.

*( English below)* Voordat een bordspel of kaartspel kan worden uitgegeven, moet er veel aan het spel getest worden om zeker te zijn dat het leuk is, duidelijk is en altijd goed werkt. Daarom komen we **elke 2 weken** met spelauteurs uit de regio samen om prototypes van spellen te testen en ze zo beter te maken en misschien ooit wel gepubliceerd te krijgen. Om 8 uur verzamelen we bij [StartUp Nijmegen](https://startupnijmegen.nl/) voor een speltestavond. Afhankelijk van het aantal aanwezigen en prototypes dat er wordt meegenomen (neem zelf ook iets mee als je wilt) vormen we een aantal groepen. Bij kleinere spellen kun je in de loop van de avond van groep wisselen, bij grotere spellen moet je dat even overleggen. **Ook als je zelf** **geen spellen maakt** of een spel hebt dat je wilt testen, ben je natuurlijk van harte welkom. Het is voor ontwerpers heel fijn om de mening van zo veel mogelijk andere mensen te krijgen. En heel eerlijk: het testen van nieuwe spellen is ook gewoon heel leuk! We gaan door tot een uur of 11, maar voel je vrij al eerder naar huis te gaan. Er is **gratis koffie** **en thee** bij StartUp Nijmegen. Voor fris, bier of wijn wordt een kleine bijdrage gevraagd. StartUp Nijmegen ligt tegenover het station. De auto kun je parkeren in de naastgelegen Keizer Karelparkeergarage (50 cent per uur). Er is hier ook een afgesloten fietsenstalling. De testavonden in Nijmegen zijn elke **2e dinsdag** en elke **4e woensdag** van de maand. Zet die dus vast in je agenda (tip: zet met [deze iCal link](https://calendar.google.com/calendar/ical/c_d2267afce516f9296468270649b3f44da6c06cbc0bc3de05f049992373db5f4f%40group.calendar.google.com/public/basic.ics) ze automatisch in je agenda)! Spellenmaakgilde Nijmegen maakt onderdeel van het [Nederlandse Spellenmaakgilde](https://spellenmaakgilde.nl/) en is onderdeel van het SAZ. Je vindt ons daarnaast ook in het #Nijmegen kanaal op de [Discord-server van het Spellenmaakgilde](https://discord.gg/6JzD6Sz2m5). **For English-speaking guests:** Before a board game or card game can be published, it must undergo extensive testing to ensure that it is enjoyable, clear, and always functions properly. Therefore, **every 2 weeks**, we gather with game authors from the region to test prototypes of games, thereby improving them and, perhaps, getting them published someday. At 8 PM, we gather at [StartUp Nijmegen](https://startupnijmegen.nl/) for a game testing evening. Depending on the number of attendees and prototypes brought (feel free to bring something yourself), we form several groups. For smaller games, you can switch groups throughout the evening, but for larger games, you should discuss this. **Even if you** **do not design games** or have a game you want to test, you are, of course, very welcome. It is very beneficial for designers to receive feedback from as many people as possible. And to be honest: testing new games is just a lot of fun! We continue until about 11 PM, but feel free to go home earlier if you wish. There is **free coffee** **and tea** at StartUp Nijmegen. A small contribution is requested for soft drinks, beer, or wine. StartUp Nijmegen is located opposite the station. You can park your car in the adjacent Keizer Karel parking garage (50 cents per hour). There is also a secure bicycle parking facility here. The testing evenings in Nijmegen are every **2nd Tuesday** and **4th Wednesday** of the month. So be sure to mark those in your calendar (tip: automatically add them to your calendar with [this iCal link](https://calendar.google.com/calendar/ical/c_d2267afce516f9296468270649b3f44da6c06cbc0bc3de05f049992373db5f4f@group.calendar.google.com/public/basic.ics))! The Spellenmaakgilde Nijmegen is part of the [Dutch Game Designers Guild](https://spellenmaakgilde.nl/) and is also a part of SAZ. You can also find us in the #Nijmegen channel on the [Discord server of the Game Designers Guild](https://discord.gg/6JzD6Sz2m5). And don't worry if you don't speak Dutch! We regularly have non-Dutch speaking guests, and everyone is welcome to join and have fun with us.

Join us for a fun session of improv theatre in English! A great opportunity to meet new people in Utrecht and learn something new with Improv Utrecht. Everyone can partcipate, you don't need any experience in theatre nor fluency in English. **Special topic: Movement & Theatre improv** Movement improvisation is a wonderful basis for all other forms of improvisation. Well before we had language we had movement; there is so much that can be expressed without words. Instead of the games that are used in theater improv, we work mostly with “scores”, or a kind of blueprint to what will happen in a space of time. A kind of a structure. We will do exercises that originate from Viewpoints, physical theater, and other forms of improvisation (including a bit of Contact Improv at times), and moving in/with/through the space, non verbal contact and how we can communicate through our bodies. Anyone can participate, you don’t need any experience in movement or theater nor complete fluency in English. This workshop is without shoes: bring non-slippery socks In this session you will: * Meet fellow international and local players. * Learn the basics of improvisation, a 21st-century skill that is useful in many aspects of life. * Get out of your head. * Enjoy failing. * Play funny and moving theatre games. * Laugh a lot, while surprising yourself and others. Doors open: 19:50-20:00, come in with the others ([SIDE entrance, at the Troelstralaan](https://maps.app.goo.gl/ntLDUqbkDxMHjp7B7)). After 20:01 the door may be closed, but you may find a participant who knows the door code. Workshop: 20:00-22:00 Every Friday except in school holidays Afterwards we have drinks at [O'Leary's](https://maps.app.goo.gl/gL878K1MZf8v5fpm7) pub together ### How to sign up Full details about how to sign up and any other questions you may have can be [found on our website](https://www.improvutrecht.nl/drop-in-workshops/). An RSVP in this Meetup event is not enough! We track attendance by counting the attendants in GrasshopperSignup. If you flag yourself as attending and can no longer make it, please delete your x in the sheet so that someone else can take your spot. If you leave your contact details at the Signup form we will contact you if there is a problem with a drop-in you are scheduled to attend. We also have a WhatsApp group with a variety of members from across Utrecht where we share events and updates. You can find our courses and shows on [our website](https://www.improvutrecht.nl). Participation is pay-what-you-can, but we suggest a donation of €10-20 by cash or Tikkie to help cover costs (location, travel) and show your appreciation for our professional trainers who dedicate their Friday to promoting improv.

Hi✋ At[ Data Tribes ](https://www.datatribes.nl/)we organise Meetups because we truly care about sharing knowledge both inside and outside the organisation. We believe that it is beneficial to us and to the market as a whole to connect, create, learn and grow together! **The agenda** // Doors open 6.00pm // Drinks and Pizza’s 6.30pm // Start presentations 7.00pm **Henk van der Valk:** "Optimizing the Azure cloud?" ***Who really cares about Cost & Co2?*** // Start networking 9.00pm // End Meetup 9.30pm Greetings, Data Tribes Inc.

Improv for Life Weekend workshop Improv for your personal development. Playful. Powerful. Transformative. What if real life could feel more like improv—full of joy, connection, creativity, and flow? Improv for Life is a one-of-a-kind course that blends the magic of improvisation with personal development. It’s not about being funny or performing on stage (though that might happen too!)—it’s about learning to navigate life with more presence, courage, and flexibility. In this course, you’ll uncover the hidden wisdom in improv games and exercises, and apply it to real-life challenges in a way that’s light, energizing, and deeply impactful. You’ll practice life-changing skills like: Being fully present Listening deeply Relating authentically Acting with courage Finding meaning in the moment And explore rich, human themes. Whether you’re a professional, a creative, or a curious human navigating change, Improv for Life offers a safe, playful space to shift stuck patterns, unlock your creativity, and reconnect with what makes you feel truly alive. Course Structure: Four full days, split into **two independent weekend workshops** — join one or both! **If you are new to improv it is recommended that you do Workshop 1 before you do Workshop 2.** #### **Workshop 1: Play, Presence & Relationships (31 Jan – 1 Feb)** **Saturday: Homo Ludens** – the playful human that learns through curiosity, exploration, and failure. Sunday: Homo Relationalis – the human whose identity emerges through relationship. #### **Workshop 2: Polarities, Stories & Meaning (28 Feb – 1 March):** Saturday: Homo Duplex – the human with inner tensions who becomes wise by holding space for paradox. **Sunday: Homo Narrans** – the meaning-maker who tells stories to make sense of life, and to make life make sense. **Sign up** by clicking the blue button on [Improv for life - Improv Utrecht](https://www.improvutrecht.nl/improv-for-life/) or go to improv-utrecht.weticket.io ### **Pricing**: * €279 per workshop * ***Early bird****:* €199 per workshop (until 16h of Jan = 2 weeks before the date) * **Both workshops**: €379 * all prices are including 21% VAT, ask Marieke for a specific invoice What previous participants say: “I feel more resourceful, more playful—and more me.” “Before, I thought my life was a mess. Now I know—that’s just a story I tell myself.” “It helped me see that I can choose my story, embrace both the good and the bad, and stay open to possibility.” “I used to think I had no control over anything—but now I know that with awareness, I can influence a lot of outcomes.” More about the facilitator: Burgert Kirsten is an Organizational Psychologist with a passion for unlocking adaptive, innovative, and integrated ways of working in teams and organizations. His Master’s research—focused on using improvisational theatre practices to spark workgroup innovation—was published in the South African Journal of Industrial Psychology. He holds multiple certifications in individual and team coaching, accredited by the International Coach Federation, and has facilitated leadership, team innovation, and creative collaboration workshops for top South African business schools, leading companies, and international conferences. Burgert Kirsten trained in improv at the renowned iO Theater in Chicago and performed for many years with Lagnes, South Africa’s longest-running Afrikaans improv group, which toured nationally and even had its own TV series.

**ArnhemJUG** We are excited to announce the second meetup of 2026. OpenValue Arnhem is once again hosting us for the February meetup! **Agenda** * 17:00 CET walk-in * 17:30 – 18:30 Food and drinks * 18:30 – 19:30 talk: **Catching the 137-Killer: A Java Memory Forensics Investigation** by **Martijn Dashorst** * 19:30 – 19:45 break * 19:45 – 20:45 talk: **Building AI Agent Platforms: Architecture, Communication, and Standards** by **Pascal Wilbrink** * 20:45 – 21:30 drinks **Catching the 137-Killer: A Java Memory Forensics Investigation** Your Java application is running smoothly, blissfully unaware of the danger lurking just around the corner. Then—without warning—it vanishes without a trace. Upon investigation, you discover the virtual remains of countless slain JVMs, each marked with the same cryptic number: 137. A serial killer is on the loose in your cluster. This true crime investigation will walk you through the differences between JVM memory areas, the mechanics of container OOMKills, analysing Grafana dashboards for memory and thread anomalies, interpreting heap dumps, and utilising JVM Native Memory Tracking (NMT) to uncover hidden native memory consumption. You’ll master practical forensic techniques and proven prevention strategies—from memory tuning tactics and balancing heap vs. non-heap allocations to leveraging large language models (LLMs) for advanced forensic analysis. These skills will help ensure your applications stay alive—even when something’s out to get them. Just like in a real murder mystery, we may not know whodunnit... but with Martijn Dashorst leading the investigation, you're sure to get closer to the truth. **About Martijn Dashorst** My Java experience is finally old enough to drive, vote and drink a beer (not all at once). One of the remaining Eclipse users, loves Java, relationship with Maven is complicated. Martijn Dashorst has worked since 2004 at Topicus and has used Java since 2002. Loves server-side Java. You might know him from Apache Wicket—he's dabbled somewhat in that framework. Loves his family and cats, finds Douglas Adams' description of the Sirius Cybernetics Corporation's technology very apt to the current technology landscape. **Building AI Agent Platforms: Architecture, Communication, and Standards** AI systems evolve from standalone models into connected, agent-based ecosystems, new architectural patterns, protocols, and standards are emerging. Concepts such as AGUI, A2A, A2UI, and MCP-based applications are changing how intelligent systems are designed and integrated. This presentation explains how these approaches affect system structure, responsibilities, and interoperability. Using architectural diagrams, it shows how AI agent applications communicate and collaborate through standardized interfaces, and provides guidance on building scalable and maintainable AI platforms. **About Pascal Wilbrink** Pascal is a senior software engineer at OpenValue with over a decade of experience and a strong interest in applied AI and intelligent automation. He enjoys exploring how technology can make developers’ lives easier and software more resilient. When he’s not experimenting with new ideas or building open-source tools, Pascal likes to learn by doing and turning complex problems into practical solutions.

Donderdag **26 februari 2026** is het weer tijd voor onze **Techday**: hét vaste moment waarop we kennis delen, elkaar inspireren en nieuwe ideeën direct in de praktijk brengen. Deze editie komt een spreker van Onyx langs. Onyx is gespecialiseerd in cybersecurity. Tijdens deze techday worden theorie, praktijk en nabespreking gecombineerd met directe toepasbaarheid in jullie dagelijkse werkzaamheden. Tijdens de Techday duiken we hands-on in veelvoorkomende kwetsbaarheden en misconfiguraties binnen moderne softwareontwikkeling. Theorie, demo’s en realistische scenario’s wisselen elkaar af. Met de interactieve CTF‑opdrachten leer je niet alleen hoe deze problemen ontstaan en misbruikt worden, maar vooral hoe je ze direct kunt toepassen en voorkomen in je dagelijkse werk. **Wanneer:** Donderdag 26 februari 2026 **Wat:** Cybersecurity in de Praktijk: Hands-on met Onyx **Voor wie:** Iedereen die nieuwsgierig is en wil leren **Agenda** 14:45 - 15:00 - Inloop 15:00 - 18:00 - Opening en introductie Praktijkvoorbeelden: Wat zijn wij in het echt tegengekomen Security misconfiguration: Gezamelijke spot-de-fout met code-snippets CTF opdrachten 18:00 - 19:00 - Eten en napraten We zien je graag op de Techday!

** ABOUT OUR WATERCOLOR PAINTING PARTY / AMERSFOORT** Amersfoort - Utrecht Province / Center of the City / Easy access from train station. Create your very own **portrait, animals, landscape, or figurative** masterpiece in only **2.5 HOURS using watercolor and our secret mixed media techniques!.** This session is not about perfection; it is about capturing emotions and personal expression. **No experience required** **\- trust us\!** our professional artist will guide you step-by-step through this unique self-portrait journey. You can look forward to a fun and exciting evening with other participants, **so it doesn't matter if you want to come with friends or alone - you are very welcome!** This is the perfect after-work or weekend activity where you'll unleash your creativity while creating something deeply personal. You will create a portrait combining painting, drawing, and creative techniques to bring your unique vision to life. When finished, you'll take home your newly created self-portrait artwork to cherish or share with loved ones. Each participant will have pencils, colored pencils, watercolor, acrylic/gouache paints, and a surface. You'll work from an image we will bring. **️ READY TO HAVE FUN?** Get your Ticket and book your seat **✨[HERE](https://buymeacoffee.com/artloversclub/e/430555) ✨** **Questions?** Speak with a member of the team in **[WHATSAPP HERE](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) ** .................................... ** WHAT'S INCLUDED?** All supplies included **2.5-HOUR [TICKET SESSION](https://buymeacoffee.com/artloversclub/e/430555)** ️ **EXTRA BONUS:** **FREE TICKET**️ to participate in our Drawing and Painting Cafes in Amersfoort or Our Online Still-Life sessions if you live far away. New friendships and Conversations Freedom to work at your own pace **English tutored activity** (And of course, you can speak in your local language with your friends!) ⭐ No experience needed **️ BOOK YOUR SEAT IN ADVANCE ✨[HERE](https://buymeacoffee.com/artloversclub/e/430555) ✨!** **Questions?** Speak with a member of the team in **[WHATSAPP](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) ** ** 2026 CALENDAR OF UPCOMING EVENTS:** First Sunday or every month from 11.00 AM - 1:30 PM. .................................... **️ ART LOVERS CLUB / ABOUT US** **ART LOVERS CLUB** is a community where art enthusiasts come together to explore their creativity and connect with new buddies through various events and sessions ( In-Person and Online) . Whether you're a seasoned artist or just starting, we have something for everyone!⭐ To share with you more about what we do, you can see here the overall atmosphere of our events in Amersfoort and also follow us if you want⭐: **[https://www.instagram.com/art_lovers_social_club](https://www.instagram.com/art_lovers_social_club)** **Questions?** Speak with a member of the team in **[WHATSAPP](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) ** ** 2025 CALENDAR OF UPCOMING EVENTS:** First Sunday or every month from 11.00 AM - 1:30 PM. **See you soon. We are looking forward to painting and having Fun Together! ‍‍‍‍**

**(Tickets + event access exclusively available through EventBrite.)** Full event link here [From Fixed to Flow - EventBrite](https://www.eventbrite.nl/e/from-fixed-to-flow-an-online-workshop-of-creativity-and-release-tickets-1981557382473?aff=oddtdtcreator) Loosen the mental knots you didn’t know you were tightening. Use creativity to move from fixed patterns into more open habits. Refresh yourself before a new week with an easy, online workshop to open your mental well-being through creative mindset from a stuck sense of routine to more flexible state. \*\* What You'll Experience:\*\* * **Structured, guided conversations** where thinking out loud is part of the method. It's not a lecture, and it is a blend of psychology, art, and practical ritual. * A **live, interactive exercise** to break rigid thinking and experience "flow." * A **supportive space to connect** with others feeling the same desire for more lightness and less rigidity. **️ What You'll Take Away:** * **The "Separation of Tasks" Tool:** A philosopher's secret to deflating anxiety about others' opinions. * **The Conduit Mindset:** How to replace "Is this good?" with the liberating question, **"What happens if you stop deciding in advance what ‘good’ looks like?"** * **Your First Micro-Ritual:** A simple, 5-minute daily practice to make creativity an inevitable source of calm. * **Clarity & Permission:** A clear map to identify your "Fixed Self" and the courage to gently unfurl from it. **✨ This is for You if:** * You feel mentally "stuck" or confined by your routines. * You've ever said, "I'm not a creative person." * You long for more playfulness, less pressure in your daily life. * You desire to use creativity as a tool for well-being, not just output. * You are 18+ years of age. \*\* Workshop Details:\*\* * **Duration:** 90 minutes * **Format:** Live, interactive virtual session (Link provided upon registration) * **Investment:** €7 less 15% off through 1 March * **What You Need:** A quiet/comfortable space, a willingness to be gently curious, and one ordinary object within arm's reach (a pen, a cup, a book). **(Tickets + event access exclusively available through EventBrite.)** Full event link here [From Fixed to Flow - EventBrite](https://www.eventbrite.nl/e/from-fixed-to-flow-an-online-workshop-of-creativity-and-release-tickets-1981557382473?aff=oddtdtcreator)

**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** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA

This is a time where players of all ages, and skill levels can gather and enjoy a nice Sunday full of Chess!

Join us and work remotely together with like-minded UX folks. This is a last minute opportunity to get out at one of our favorites, [Junto](https://thejuntohotel.com/)! Plenty of seating is available in addition to a connected coffee shop and restaurant. I will be there 10-12 for sure, maybe longer. Feel free to come and go anytime during the day, and don't forget your charger and headphones!

Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games! The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!

Join other experienced and aspiring agile coaches and professionals to: * develop and practice your coaching skills in a peer-to-peer environment * share current successes and challenges in your work environment and get support from each other * learn from each other, build better relationships and experiment with new ideas

Excited to share that AWS Cloud Club's first meeting will take place on Thursday, February 26th at 5pm - 6pm! We’re collaborating with [Big Data & Analytics Association](https://www.linkedin.com/company/big-data-analytics-association/) to host [Alok Jha](https://www.linkedin.com/in/alok-jha-42abb928/), Head of Product Management for AWS Intelligent Application Protection at Amazon Web Services, for a tech talk + Q&A on his journey in leading cutting-edge innovation in industry. If you’re interested in cloud, cybersecurity, AI, or product management, this is a session you won’t want to miss. Make sure to join our Meetup and GroupMe to stay up to date for future events and collabs!