Web 2.0

Save the date! The Mozilla Meetup series is back in Berlin with an evening focused on Firefox, open source, and the future of the web. To account for typical no-show rates, we’ve opened more RSVP spots than we can physically accommodate. Entry will be **first-come, first-served**, and we’ll close doors once we reach venue capacity (\~50 people). As always, this event follows the Mozilla Community Participation Guidelines. *** **Agenda (tentative)** **18:00 – 18:30** Welcome & meet and greet **18:30 – 19:00** **Firefox Mobile – Open Source Opportunities** Discover how you can get involved with Firefox Mobile and contribute to open source. *Speaker: Nishant Bhasin* * Q&A **19:00 – 19:30** **Firefox Roadmap + Features** An inside look at what’s coming next for Firefox and the features shaping the browser. *Speaker: Andres Furlan* * Q&A **19:30 – 20:30** Networking & raffle 🎁 **What to expect** * Informal, community-first atmosphere * A mix of talks, discussion, and networking * Open to both long-time contributors and newcomers * A chance to connect with others passionate about the open web **RSVP is required**

**Chat & Updates:** Telegram: [https://t.me/+VfHrJXPGVWLflGhz](https://t.me/+VfHrJXPGVWLflGhz) Discord: [https://discord.gg/SVb44D9](https://discord.gg/SVb44D9) **\*Deutscher Text unten\*** **Come & go as it fits your schedule** We are meeting in-person and online every week. We offer an office environment for self-study, work and presentation/discussion (lightning talks). **Schedule:** * 10am open doors * 10am online video conference open [https://meet.in-berlin.de/fcc](https://meet.in-berlin.de/fcc) * optional, afternoon, around 1pm: 1h presentation session (if requested / offered) * 6pm or extended open-end **Open co-working / co-learning** work on the FreeCodeCamp curriculum or your own project. Vibe inside but vape outside. **Mutual exchange** and support is welcome. English and German, as needed. We have fast internet, chocolate bars, drinks and a nice atmosphere. :-) **Personal Consultation / Career advice** Bodo runs this meetup for many years. As a Senior Dev/DevOp he is open to giving guidance for your questions about career development. Book a free appointment (up to 60min) with him here: [https://calendar.app.google/yoZfVZR4D9zwt5in7](https://calendar.app.google/yoZfVZR4D9zwt5in7) **Code presentations on the projector** Everybody can participate. Show your code and present your project/problem. Get feedback or help and let others learn from you! You don't have to prepare a fancy presentation, show us what you're working on. Also in English or German, as you feel more comfortable. **Komm und gehe jederzeit. Zeitplan:** * 10:00 Uhr Öffnung vor Ort * 10:00 Uhr online room [https://meet.in-berlin.de/fcc](https://meet.in-berlin.de/fcc) * Nachmittag, ca 13 Uhr: optional 1 Std. Präsentation / Gruppen-Diskussion (nach Angebot/Bedarf) * 18:00 bzw. länger, open-end **Präsentationsrunde** nach Bedarf und Angebot am Nachmittag. Dort man kurz zeigen, woran man gerade arbeitet, eventuell Hilfe bekommen oder interessante Tool vorstellen. Du musst keine große Präsentation vorbereiten. Ebenfalls auf Englisch oder Deutsch, wie Du Dich wohl fühlst. **Gegenseitiger Austausch** und Unterstützung sind willkommen. Es wird Englisch und Deutsch gesprochen. **Persönliche Beratung / Karriereempfehlung** Bodo veranstaltet dieses Meetup seit vielen Jahren. Als Senior Dev/DevOp gibt er Dir auch persönliche Ratschläge für Karriere im 1:1 Gespräch. Reserviere Deinen kostenfreien Online-Videocall (bis zu 60min) hier: [https://calendar.app.google/yoZfVZR4D9zwt5in7](https://calendar.app.google/yoZfVZR4D9zwt5in7) **Tech & Buzz:** Claude Code, nodeJS, npm, nvm, TypeScript, JavaScript, Bootstrap, Tailwind, Bulma, React, Angular, NextJS, Vue, Nuxt, Docker, Container, Virtualization, Django, Codex, LLM, vibe coding, static site generation, OAuth2, Simple SAML, UX, UI, CMS, markdown, Hugo, Netlify, freeCodeCamp, Udemy, Community, Frontend Masters, Backend, SQL, noSQL, MySQL, Python, Linux, Development, git, Version Control, HTML, CSS, Open Source, Responsive Web design, Relational Database, API, Data Science, Machine Learning, Infosec, Cybersecurity, Big Data, AI, Artificial Intelligence, ChatGPT, Stable Diffusion, Data Structures, Data Mining, Ethical Hacking, OSI, Network Security, Julia, Deno, Test driven development, CI, continuous delivery, Deployment Pipe, Bash, devOps, Gitlab, GitHub, Jira, Cloud Computing, Azure, AWS, Apache Server, SSH, Algorithm optimization, SEO, C/C++, Mobile Apps, Apple iPhone, mac OS, Firefox, Chrome, Android, Programming Languages, Cryptography, Patching, Blockchain, DApp, Solidity, Analytics, geek, nerd, Neural Network, MongoDB, ExpressJS, Flutter, Go Lang, AJAX, OOP, UML Diagram, Computer Science, Engineering, Modell, View, Controller, Requirements, risks analysis, PKI, SSL, PGP Certs

BHNT #111: the fourth BHNT in 2026. The title is inspired by humans visiting the Moon again. Your hacks do not have to be connected to the title (bonus points if they do though) Please RSVP and bring your hacks! There are 8 dynamically allocated Slots that consist of 5min presentation + 5min conversation with the audience. To refresh your memories or get familiar with the concept - see some old hacks here: [https://bhnt.c-base.org](https://bhnt.c-base.org/) Hope to see you - looking forward! Please [RSVP here](https://platform.openmeet.net/events/bhnt-111-putlinehello-moon-eghjl)

**👋 Hello Strangers! —** For all players and chess-curious folks out there who want to chill and make friends: We are hosting a daily chess meetup in Mitte / Prenzlauerberg welcoming all experience levels. It doesn't matter if you just watched the Queen's Gambit or if you have been playing regularly for years – join us Daily from 7 pm till midnight. **Pics** · [Instagram](https://www.instagram.com/strangerchess/) / **Chat** · [Telegram](https://t.me/strangerchess) / **Web** · [Strangerchess.com](https://strangerchess.com/) (No need to bring anything, boards, clocks, etc. are provided)

Join us for an in-person evening exploring how GenAI is transforming modern engineering — from low-code feature engineering and research workflows to agent-driven optimization and production ML systems. Please make sure you register with your full name, as it will be checked by security on arrival. \*\*\* 📅 **Date and Time:** Tuesday, April 28, 2026 Doors open: 17:30 Talks start: 18:00 Panel discussion: 19:20 Networking & pizza: 20:00 \*\*\* 📍 **Location:** Zalando Office BHW Warschauer S-Bahn, Auditorium Cinema Main entrance is on the west-side of the building (towards Uber Arena). Participants should register at the Helpdesk, and will be picked up from there. \*\*\* 📝 **Agenda:** **17:30 – Doors Open** Arrivals and check-in \*\*\* **18:00 – Talk #1** **Research Harness Engineering** [Florian Hönicke](https://www.linkedin.com/in/florian-h%C3%B6nicke-b902b6aa/) — Elastic Every programmer is now a manager of coding agents — but human oversight quickly becomes the bottleneck. Florian will share how Elasticsearch built an agentic research harness to support their v5-omni model development, enabling structured experimentation and faster iteration cycles in applied AI research, and why building your own harness is the key unlock for teams serious about scaling agentic workflows. \*\*\* **18:20 – Talk #2** **Low code feature engineering in Zalando with Agentic support** Ola Wahab — Zalando Feature engineering at scale has traditionally been a high-friction process — days of infra setup, complex tooling coordination, and lots of boilerplate. Ola will walk through how Zalando is shifting to a low-code, configuration-driven approach where teams define pipelines declaratively, and how agentic coding has compressed the journey from feature discovery to production from weeks to days. \*\*\* **18:40 – Talk #3** **Ranking Logic Migration from Monolith — Using Code Agents for Iterative Performance Benchmarking** [Ivan Potapov](https://www.linkedin.com/in/ivan-sur/) — Zalando How Zalando’s Search and Browse Discovery team extracted a latency-critical ranking service from a monolith and validated it for production. This talk covers: * Migrating the ranking read path into a standalone Ranking API * Using AI-powered agentic loops with async-profiler to close the p99 latency gap * Practical lessons on allocation profiling, virtual threads, and production validation \*\*\* **19:00 – Talk #4** **Coding Agents for ML Pipelines & AI Systems (Hopsworks + Claude Code)** [Jim Dowling](https://www.linkedin.com/in/jim-dowling-206a98/) — Hopsworks Coding agents are rapidly reshaping software and ML engineering. This talk explores how prompt-driven development is changing how we build ML systems. We’ll cover: * ML problem decomposition and architecture optimization in an agent-driven world * Data-driven experimentation workflows * Building faster and higher-quality systems with Claude Code * Why building on top of AI infrastructure boosts productivity Based on Jim’s O’Reilly book: *Building AI Systems with a Feature Store* Format: 20 min talk + 10 min Q&A \*\*\* **19:20 – Panel Discussion** **Product Mindset in Engineering — The Evolution of the AI Engineer Role** \*\*Host: Ivan Potapov Jim Dowling — CEO, Hopsworks Leela Sharma — Director of Engineering, Zalando Alexey Grigorev — Founder, DataTalks.Club Florian Hönicke — Principal AI Engineer, Elastic A discussion on how GenAI is reshaping engineering roles, expectations, and the shift toward product-oriented thinking. \*\*\* **20:00 – Pizza, Drinks & Networking** Wrap up the evening with food, drinks and conversations with fellow engineers and speakers. \*\*\* Invite your friends and join us for an evening of learning and networking! **⚡️ Interested in giving a talk? ⚡️** Are you interested presenting on your Elastic use case? We welcome 5-10 minute lightning talks, 45-minute deep dives, and everything in between. If you're interested, please send an email to [meetups@elastic.co](http://meetups@elastic.co/?utm_source=luma)

**Nebius.Build/BER** is a technical in-person event for engineers, architects, founders, and developers building, deploying, and scaling AI systems in production. The program features talks from Nebius and partners including Anyscale and Tavily, with practical insights into distributed training, running open-source models in production, inference scaling, and operating reliable AI workloads at scale. It also includes a hands-on workshop where participants can deploy their own model and connect it to a working inference pipeline. **Why attend?** Expect technical sessions instead of marketing, real architecture learnings from production environments, and direct exchange with engineers on site. **Agenda** 12:00–13:00 Registration and lunch 13:00–13:15 Opening remarks 13:15–13:45 Talk: Reliable clusters for large-scale distributed training 13:45–14:30 Talk: Making open models reliable at scale 14:30–15:00 Coffee break 15:00–15:25 Breakout sessions: Anyscale talk or OpenClaw workshop 15:25–15:50 Agentic Search / workshop continuation 15:50–16:05 Keynote 16:05–16:20 Fireside chat 16:20–16:30 Closing remarks From 16:30 Networking and help bar This event is ideal for ML infrastructure engineers, AI/ML platform engineers, architects, technical founders, and developers working on scalable AI systems. **Register here:** https://nebius.com/events/nebius-build-berlin **DISCLAIMER:** This is a third-party event announcement. We are not responsible for it and are only promoting it. If you would also like to feature your event here, please contact us.

(Note: We are cross posting this event on behalf of our friends at [Nebius.](https://nebius.com/)) The Nebius Build Tour is a series of in-person technical gatherings designed for engineers working on real-world AI infrastructure. Join ML engineers, platform architects, and technical founders for deep dives into deploying, scaling, and operating AI systems in production. **Time, Place and Location** April 28, 2026 13:00-18:00 Impact Hub Berlin Rollbergstraße 28A, 12053 Berlin **[Register on the Nebius website](https://nebius.com/events/nebius-build-berlin#form)** This is not a marketing conference — it’s a focused environment for builders to share architecture patterns, lessons learned, and practical approaches to running AI workloads at scale. Nebius.Build/BER brings together engineers from Nebius and partners including Anyscale and Tavily, with sessions covering distributed training, running open source models in production, and scaling workloads across large GPU clusters. The program includes a mix of technical talks, partner sessions, and a hands-on workshop, where you can deploy your own model and connect it to a working inference pipeline. The program includes talks on real architecture breakdowns and implementation details from teams running production systems, with discussion of inference scaling, latency, reliability, and cost-performance tradeoffs, alongside practical deployment workflows. The content runs from 13:00 to 16:30, followed by a networking reception and a help bar, allowing time to connect directly with engineers and peers. [Register](https://nebius.com/events/nebius-build-berlin#form) your interest to receive updates on upcoming events and be the first to secure a place when registrations open near you.

Bist du bereit für einen Abend voller Geheimnisse, Täuschung und spannender Diskussionen? Am Mittwoch, den 22. April treffen wir uns zu einem neuen Mafia–Werwolf-Spielabend. Finde heraus, wer im Dorf die Wahrheit sagt – und wer heimlich zur Mafia oder zu den Werwölfen gehört. Ein Blick. Ein Verdacht. Eine Abstimmung. Und plötzlich ist jemand… raus. 📅 Datum: Mittwoch, 22.04 ⏰ Beginn: 18:00 Uhr 📍 Ort: Café Chagall 💰 Spende ab 5 € Egal ob Anfänger oder erfahrener Spieler – alle sind willkommen. Bring gerne Freunde mit und tauche ein in eine Nacht voller Intrigen, Strategie und Spaß. ‼️ Wichtiger Hinweis: Wir spielen die ursprüngliche Version von Werwolf/Mafia

**ℹ️ The next meetups will be managed on Luma.** **You can register for this event 👉 [here](https://luma.com/zma43t8d). Follow the Django User Group Berlin Calendar on Luma.** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-​ In April, we'll be hosted again by [MPB](https://www.mpb.com/de-de?utm_source=luma), the second-hand market for camera and video equipment, running good ol' Django. Be sure to chat to them while you sample their food and drinks. This month, like last, we'll have a speaker from within our own community, **Sofia Fischer**, Backend Developer at Kraken Technologies. The title of her talk is: "**How complex is my function?**". This talk will give an overview of complexity metrics in computer science, software engineering, and linguistics to show many different ways in which a function may be complex. Based on the Django Framework repo, I will show how a project can be analysed with different complexity metrics. As always, please make use of the **lightning talks** and talk about anything you like: a problem that you'd like help with, a thing you've built, or a hobby you like. Doesn't have to be Django, doesn't even have to be tech! **18:30 Doors open** **19:00 Main talk by Sofia Fischer** **19:30 Lightning talks** **19:45 Get eatin'** This event is governed by the **[Berlin code of conduct](https://berlincodeofconduct.org/de/?utm_source=luma).** We want this to be a safe space for all. Any questions and concerns can always be directed towards the organizers Lara Krämer ([lara.softwareengineer@gmail.com](mailto:lara.softwareengineer@gmail.com)) and Markus Binsteiner ([markus@frkl.dev](mailto:markus@frkl.dev)) before, at and after the event. **Accessibility information:** The main entrance can be accessed via stairs or a ramp. The front door is a bit heavy and must be opened manually when closed. An elevator is available to take you up to the fifth floor. Once you reach the office door, please ring the bell; when you hear a sound, turn the handle two full turns to the right to enter, or somebody can come and open the door. If you need any assistance, feel free to reach out—we’ll do our best to accommodate you.

Bist du bereit für einen Abend voller Geheimnisse, Täuschung und spannender Diskussionen? Am Mittwoch, den 22. April treffen wir uns zu einem neuen Mafia–Werwolf-Spielabend. Finde heraus, wer im Dorf die Wahrheit sagt – und wer heimlich zur Mafia oder zu den Werwölfen gehört. Ein Blick. Ein Verdacht. Eine Abstimmung. Und plötzlich ist jemand… raus. 📅 Datum: Mittwoch, 22.04 ⏰ Beginn: 18:00 Uhr 📍 Ort: Café Chagall 💰 Spende ab 5 € Egal ob Anfänger oder erfahrener Spieler – alle sind willkommen. Bring gerne Freunde mit und tauche ein in eine Nacht voller Intrigen, Strategie und Spaß. ‼️ Wichtiger Hinweis: Wir spielen die ursprüngliche Version von Werwolf/Mafia

Bitte via Mail anmelden: anmeldung@gedoplan.de **Referent:** Martin Boßlet, Berater, Dozent und Softwareentwickler **Datum und Uhrzeit:** Donnerstag, 30.04.2026, 18:00 – ca. 19:30 Uhr **Ort:** Online mit Zoom Seit zwei Jahren reden alle über KI-gestützte Entwicklung - und vieles klingt gleich: Gestern war Prompt Engineering der Beruf der Zukunft, heute ist es Context Engineering. Claude Code gegen Codex, GitHub Copilot vs. Cursor, Tool-Vergleiche hier und da. Die Älteren unter uns werden sich mit einem Schmunzeln an Vim vs. Emacs erinnert fühlen. Während CEOs bis hin zum Digitalminister den Untergang der programmierenden Zunft ausrufen, wenden sich viele Entwickelnde frustriert ab. "Das ist nichts für mich" - diesen Satz hört man oft. Die Branche scheint sich in zwei Lager zu spalten: auf der einen Seite diejenigen, die KI fast schon aus Trotz konsequent ablehnen, auf der anderen KI-Propheten, die zumindest der Erzählung nach ihren kompletten Alltag mit KI bestreiten und der Konkurrenz schon längst meilenweit voraus sind. Die eigentliche Frage lautet: Warum gehen die Erfahrungen so weit auseinander? Die These dieses Vortrags: Der Engpass liegt meist weder im Modell noch im nächsten "Tool du jour", sondern in fehlendem, verstreutem oder nur implizit vorhandenem Kontext. Der Schlüssel zu erfolgreicher KI-Zusammenarbeit liegt deshalb nicht in besseren Tools oder clevereren Prompts, sondern in der ältesten Technologie der Menschheit - Sprache. Genauer gesagt: in Markdown als universeller Schnittstelle zwischen Mensch und Maschine. Anhand von Architecture Decision Records (ADRs), Mermaid-Diagrammen, **[AGENTS.md](https://www.linkedin.com/safety/go/?url=http%3A%2F%2FAGENTS%2Emd&urlhash=jh-H&mt=F7bnie71WnYrGR3aD-BiSMeaQCiWniKDxaG65SbBgq37lq5u7OZ1P6NjRp-YTlrvhyBy30Lf47AWfYCmtVLwNg99MBUc-2e8qYUzQLXNViKKD4LeW5gizS3yWw&isSdui=true)**-Datei und Agenten-Skills zeige ich, warum Text-First Development kein Retro-Trick ist, sondern ein praktikables Arbeitsmodell für die KI-Ära. Wer Architektur, Entscheidungen und Konventionen in Text statt in Tickets, Chat-Verläufen oder auch nur an der Kaffeemaschine festhält, bekommt bessere KI-Ergebnisse, mehr Präzision und weniger Nacharbeit. Und ganz nebenbei entsteht endlich wieder etwas, das in der Softwareentwicklung jahrzehntelang zu teuer war: aktuelle, brauchbare Dokumentation für Mensch und Maschine. Kein Talk über Prompt-Hacks, Tool-Vergleiche oder das Tool der Woche, sondern über eine einfache, praktische Frage: Wie müssen wir Software bauen, damit KI-Unterstützung nicht nur beeindruckend wirkt, sondern dauerhaft nützt? Die Antwort ist überraschend einfach: kein Tool-Zirkus, kein Hokuspokus. Einfach nur Text. Nach Ihrer Anmeldung schicken wir Ihnen den Anmeldelink zu.

**⭐ DOORS OPEN AT 19:30. PLEASE ARRIVE BEFORE 8PM! ⭐** The Creative Code Stammtisch is a casual show-and-tell for artists, makers, designers, coders, performers, learners and anyone interested in the use of computing skills for artistic expression. The event is free and open to all, regardless of age, origin, gender or experience. Beginners and first-timers should feel especially welcome! You don't have to be a coder yourself 😃 HOW TO FIND US? Find Prachtsaal Studio by crossing the courtyard next to Cafe Augusta on Jonasstr. 22, 12053 Berlin. WHAT SHOULD I EXPECT? We start with quick introductions, then open the floor to anyone who wants to present something. There are usually around six 10-minute slots available, plus time for questions from the audience. First-timers are encouraged to share their work. Topics range from net art to computational design and interactive installations all the way to wearable electronics or generative poetry. If you’re wondering whether your own project might fit, take a look at the [Stammtisch archive](https://creativecodeberlin.github.io/Stammtisch/) to see what others have shared in the past. This event is *not* just for coders! New-media artists and anyone working with technology in their art are very welcome to share. If you enjoy art and/or technology, you’ll likely have a great time, and maybe even learn something new! BEGINNERS WELCOME! If you’re new to creative coding, you can find beginner-friendly resources at [creativecode.berlin/learn](https://creativecode.berlin/learn). THIS IS YOUR SPACE We do our best to create a welcoming environment for all people regardless of race, ethnicity, color, religion, gender identity, sexual orientation, national origin, age, disability, or genetics. People from group generally underrepresented in open-source, art, and technology fields are warmly encouraged to come by. And if you know someone who might enjoy this meetup but isn’t sure it’s for them, let them know they’ll be welcome! SAFE SPACE POLICY We support the Berlin Code of Conduct: [berlincodeofconduct.org](http://berlincodeofconduct.org/) Please read and make sure you agree with its content. ACCESSIBILITY Prachtsaal Studio is located on an easy to access ground floor. We're very sorry to say that the bathrooms are not wheelchair accessible yet. DO I NEED TO SPEAK GERMAN? We speak mostly English so international guests are more than welcome! Our team also speaks French, Italian, Spanish, Dutch, Finnish and German... though language availability may vary depending on which organizers are present :) CONTACT Raphaël de Courville team@creativecode.berlin +49 (0) 176 70070572 or get in touch via [creativecode.berlin](https://creativecode.berlin/) *** The featured artwork of the month is by @ojelibalon. We'd love to feature your work on the cover for the next Stammtisch! Please send an image at team@creativecode.berlin

Complete your event RSVP here: [https://gdg.community.dev/events/details/google-gdg-cloud-berlin-presents-cloud-next-26-amp-rooftop-networking-building-agents-with-adk/](https://gdg.community.dev/events/details/google-gdg-cloud-berlin-presents-cloud-next-26-amp-rooftop-networking-building-agents-with-adk/) Hi. We are delighted to invite you to our hybrid (virtual and onsite RSVP available) April gathering at [Ojin AixHaus in Mitte](https://ojin.ai/community). We’ll be unpacking the top highlights from Google Cloud Next '26 its 22-24 of April [(register to get virtual spot)](https://www.googlecloudevents.com/next-vegas/) and sharing expert insights on the Agent Development Kit. **The Agenda** * 6:00 pm: Doors open for snacks, drinks, and a bit of a chinwag * 6:45 pm: Kick-off with the Ojin AixHaus crew * 7:00 pm: Google Cloud Next '26: The highlights! * 8:00 pm: [Iliyan Peychev](https://www.linkedin.com/in/iliyanpeychev/): Evolving Cloud Run Apps into Agents with ADK *Agents are here to stay, and Google’s ADK makes building them from scratch more accessible than ever. But in the real world, we rarely start with a blank slate. What if we have battle-tested Cloud Run applications already using Gemini that we need to evolve? How can we get the benefits of the Agentic world without a full rewrite? This session focuses on moving from manual controllers and service orchestration to Multi-Agent systems with Google’s ADK. We will explore the practical "why" and "how" of this architectural shift, along with the real-world caveats and pitfalls.* * 9:00 pm: 🍕🍻 Rooftop Drinks & Networking (with a view!) * 10:00 pm: Doors close **🙏 Thanks & Credits** A massive thank you to **[Ojin AixHaus Community ](https://ojin.ai/community)**crew for letting us in their brilliant space! **Follow Ojin AixHaus on socials: [Instagram ](https://www.instagram.com/ojin.ai/#)[Lin](https://ojin.ai/community)[kedin ](https://www.linkedin.com/showcase/ojin-aixhaus/)[X](https://x.com/Ojin_AI)** We’d love to see you there! ***

Meet us for in-person talks at Zalando on April 28, 2026! Join us for an evening exploring how GenAI is transforming modern engineering — from low-code feature engineering and research workflows to agent-driven optimization and production ML systems. Please make sure you register with your full name, as it will be checked by security on arrival. *** 📅 **Date and Time:** Tuesday, April 28, 2026 Doors open: 17:30 Talks start: 18:00 Panel discussion: 19:20 Networking & pizza: 20:00 *** 📍 **Location:** Zalando Office BHW Warschauer S-Bahn, Auditorium Cinema *** 📝 **Agenda:** **17:30 – Doors Open** Welcome, pizza, and networking **18:00 – Research Harness Engineering for Model Development** Florian Hönicke — Elastic Every programmer is now a manager of coding agents — but human oversight quickly becomes the bottleneck. Florian will share how Elastic built an agentic research harness to support their v5-omni model development, enabling structured experimentation and faster iteration cycles in applied AI research, and why building your own harness is the key unlock for teams serious about scaling agentic workflows. *** **18:20 – Low-Code Feature Engineering in Zalando with Agentic Support** Ola Wahab — Zalando Feature engineering at scale has traditionally been a high-friction process — days of infra setup, complex tooling coordination, and lots of boilerplate. Ola will walk through how Zalando is shifting to a low-code, configuration-driven approach where teams define pipelines declaratively, and how agentic coding has compressed the journey from feature discovery to production from weeks to days. *** **18:40 – Ranking Logic Migration from Monolith — Using Code Agents for Iterative Performance Benchmarking** Ivan Potapov — Zalando How Zalando’s Search and Browse Discovery team extracted a latency-critical ranking service from a monolith and validated it for production. This talk covers: * Migrating the ranking read path into a standalone Ranking API * Using AI-powered agentic loops with async-profiler to close the p99 latency gap * Practical lessons on allocation profiling, virtual threads, and production validation Format: 20 min talk + 10 min Q&A *** **19:00 – Coding Agents for ML Pipelines & AI Systems (Hopsworks + Claude Code)** Jim Dowling — Hopsworks Coding agents are rapidly reshaping software and ML engineering. This talk explores how prompt-driven development is changing how we build ML systems. We’ll cover: * ML problem decomposition and architecture optimization in an agent-driven world * Data-driven experimentation workflows * Building faster and higher-quality systems with Claude Code * Why building on top of AI infrastructure boosts productivity Based on Jim’s O’Reilly book: *Building AI Systems with a Feature Store* Format: 20 min talk + 10 min Q&A *** **19:20 – Panel Discussion** **Product Mindset in Engineering — The Evolution of the AI Engineer Role** Jim Dowling — CEO, Hopsworks Leela Sharma — Director of Engineering, Zalando Florian Hönicke — Principal AI Engineer, Elastic Alexey Grigorev — Founder, DataTalks.Club A discussion on how GenAI is reshaping engineering roles, expectations, and the shift toward product-oriented thinking. *** **20:00 – Pizza, Drinks & Networking** Wrap up the evening with food, drinks, and conversations with fellow engineers and speakers. *** Invite your friends and join us for an evening of learning and networking!

It feels like we just saw each other 🤷. Join members of the local design and UX community for our monthly breakfast. For May we’re stopping in for Rooh’s popup breakfast/cafe concept. You know someone is getting the lobster yuzu croissant, and that’s not even the prettiest thing on the menu!.

**TBA**

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

**TBA**

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

**PLEASE READ THE FOLLOWING IMPORTANT NOTES:** 1. The dates for this series are simply placeholders at the moment. We are working on our 2026 schedule, and adjustments are forthcoming. 2. Each class in this series has an attendance fee. 3. Each class from BOTH a sign-up and fee perspective is a separate entity. **Introduction:** Our Page Building with Bricks web development class provides detailed instruction for using Bricks Builder, a visual site builder for WordPress, to create and manage websites. Widely considered by many of the world's leading web developers to be the most complete page builder on the market today, Bricks Builder offers a wide range of features and comprehensive tools. Our Bricks Builder web development class provides detailed instructions on utilizing the toolset. The series of courses covers the core features of Bricks Builder, enabling users to design and develop responsive, visually appealing websites. Moreover, the courses are oriented to reinforce a focus on professional, scalable web development. Throughout the series, we focus our page-building instruction on the semantic and structural integrity of the pages in a responsive world. By the end of the 10-class series, participants will have a fundamental understanding of proper web page and website development. **The breakdown of the 10-class series is as follows:** * Class 01 - Survey of Page Builders / What Bricksbuilder Does For You * Class 02 - Boxes, Boxes, Boxes / Sections / Containers * Class 03 - Static Units / Relative Units / Responsive Development And Math Functions * Class 04 - CSS Variables And DRY Development / Classes And Global Styling * Class 05 - CSS Grid And CSS Flexbox * Class 06 - Responsive Development / Breakpoints And Media Queries * Class 07 - Effective Use Of Color / Effective Use Of Images * Class 08 - Beginning To Think Dynamically / Using Templates And Components * Class 09 - Dynamic Styling / Data Attributes And Attribute Selectors * Class 10 - Pseudo Elements / Programmatically Styling With Pseudo Classes Throughout the class sessions listed above, we cover the following key areas of web development with Bricks Builder: * **Introduction to Bricks Builder Interface:** * Familiarization with the builder's layout, including the toolbar, panel, and canvas, and understanding how to navigate and interact with its various components. * **Visual Site Building:** * Techniques for creating layouts using Bricks' drag-and-drop interface, incorporating sections, rows, columns, and elements to build page structures. * **Styling and Design:** * Utilizing Bricks' styling options to customize elements, apply global CSS classes for consistent design, and leverage features like Flexbox and CSS Grid for responsive layouts. * **Dynamic Content and Custom Fields:** * Integrating dynamic content from custom post types and custom field plugins (like ACF, Meta Box) to build data-driven websites. * **Template Building:** * Creating and managing reusable templates for headers, footers, post type layouts, and other site-wide elements. * **Performance Optimization:** * Understanding how Bricks Builder contributes to fast-loading websites and implementing performance best practices. * **Advanced Features:** * Depending on the class level, it might delve into advanced topics such as conditional logic, interactions, and custom code integration to enable more complex functionality. The series aims to equip participants with the skills to efficiently build, customize, and maintain WordPress websites using Bricks Builder, catering to both beginners and experienced web developers.

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 ***NOTE:*** Pre-registration is required for this event. **Please arrive 10 minutes early** to check in at the security desk.