Social Software
Meet other local people interested in a discussion about the technology and social impacts of Social Software.
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Frequently Asked Questions
Yes! Check out social software events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the social software events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find social software events near your location here. Connect with your local community and discover events within your area.
Social Software Events Today
Join in-person Social Software events happening right now
New in Berlin: A Sense of Belonging – Social Butterfly Club 🦋
Finding your place in a city isn’t just about locations — it’s about moments where you can exhale.
This Social Butterfly Club Meetup is an invitation to slow down and connect in a way that feels grounded and real. A space for conversations that don’t need to impress, where different stories of “home” can exist side by side. 🌙
Some people feel at home through people, others through routines, places, or quiet familiarity. Wherever you’re at with that question — you’re welcome.
✨ Suggested Ice Breaker Question:
“What helps you feel at home — wherever you are?”
Orga
This meetup is donation based. Your contribution helps keep this community alive and is highly appreciated. You can either contribute in cash or via Buy me a Coffee: [https://buymeacoffee.com/butterflyradar](https://buymeacoffee.com/butterflyradar)
Questions? Check our FAQs:
[https://socialbutterfly.berlin/meetup-faq/](https://socialbutterfly.berlin/meetup-faq/)
Meet your host
I’m Julia — a Berlin local who loves bringing people together. My path went from growing up in a dance school to studying philosophy to working in IT support, and somehow all of that led me here: hosting meetups and creating spaces where people can show up, relax, and connect.
Insta [https://www.instagram.com/juwaberlin/](https://www.instagram.com/juwaberlin/)
LinkedIn [https://www.linkedin.com/in/julia-waehnert/](https://www.linkedin.com/in/julia-waehnert/)
About
The Social Butterfly Club 🦋 is a Berlin-based community that has been bringing people together for over three years. Each gathering is part of a larger framework designed to help friendships grow through shared experiences in the city — with a long-term vision of turning Berlin itself into a shared, playful experience.
Curious to learn more about the Social Butterfly Club?
You can explore the bigger picture and stay connected here:
[https://social-butterfly-berlin.kit.com/join](https://social-butterfly-berlin.kit.com/join)
Lasst uns treffen und Deutsch sprechen
Bitte kauft in den Restaurants mindestens einen Artikel, damit wir keinen Ärger mit dem Manager bekommen.
-> Location
Berlin Potsdamer Platz -> The Playce -> Manifesto Markt
Wir sitzen unten oft an den großen runden Tischen vor dem Restaurant Kumpir'a oder an den langen Tischen vor dem Pizza und Pasta Restaurant im Erdgeschoss.
Dieses Treffen ist für:
-Internationale Teilnehmer aus allen Ländern, die auf Deutsch Kontakte knüpfen wollen.
-Deutsch-sprachige, die in netter Gesellschaft anderen helfen wollen, Deutsch zu sprechen, oder nur neue Kontakte knüpfen wollen.
JCD - Martial Arts Training - Grappling
Join us for a thrilling and empowering Martial Arts Training hosted by the **Juk Cheon Do** \- Self Defense and Martial Arts group\!
Our monday training is focused on **Grappling.**
This event is perfect for adults looking to enhance their self-defense techniques, improve fitness, and learn this unique Korean German Martial Art. Whether you are a newbie or have experience in MMA Mixed Martial Arts, BJJ, Judo, Wrestling or Sambo, this training will offer valuable insights and practical training exercises to bring your skills to another level.
Get ready to boost your confidence, strength, and agility while embracing the physical and mental challenges of this martial arts training and enjoy this fantastic opportunity to make new friends within the community of like-minded individuals who share a passion for martial arts.
We are not a huge group and like to train in a nice atmosphere with each other.
Everybody is welcome weather you are a total beginner or experienced martial artist, weather your are top fit or you want to be it. Don’t be afraid and never forget, everybody starts at one point as a beginner. Important is the will to start. So no excuses! Start today!
And of course we are also open to females, males and whatever. Here everybody is equal to share the same fun and pain. ;)
Languages: German, English, Korean, Japanese.
If the door is closed or you can’t find us, please call me: 01781830004 !
Workshop: Bindungstypen / Beziehungstypen, Deine Freundschaften & Beziehungen
**💶 Wertschätzungsbeitrag: 10-20 Euro (nach eigenen Möglichkeiten)**
**Du möchtest Deine Freundschaften, Partnerschaft & Arbeitsbeziehungen verbessern? Dieser Worskhop kann ein großer Schritt dazu sein.**
Beziehungs- und Bindungstypen sind ein weit verbreitetes Modell, um typisches Verhalten in verschiedensten Beziehungen erklären.
Warum klammert jemand? Warum Drama? Warum Rückzug? Warum Kälte? Warum Unsicherheit, Nervosität und Ärger? --- und wie sieht eine sichere & gute Beziehung aus (und fühlt sich an).
Die Annahme: Ereignisse der frühen Kindheit & der Erziehungsstil unserer Eltern prägen, wie wir als Erwachsene unsere Partnerschaften, Freundschaften & Arbeitsbeziehungen leben.
Für manche gut. Für manche weniger gut.
Ich setze mich mit den Beziehungstypen auseinander, weil ich glaube, dass sie einen wesentlichen Einfluss auf die Gestaltung von Freundschaften haben (und auf Liebesbeziehungen sowie menschliche Beziehungen jeglicher Art).
Dabei habe ich entdeckt, dass ich oft einen vermeidenen Beziehungsstil habe - ich weiche lieber aus, trenne mich oder spreche Probleme nicht an, weil ich wahrscheinlich in meiner Kindheit aus unterschiedlichen Ereignissen gelernt habe... dass bringt eh nichts, ich kann anderen nicht vertrauen, das macht man nicht, meine Bedürfnisse sind nicht wichtig, usw.
In der Auseinandersetzung mit den Beziehungs- / Bindungstypen habe ich bemerkt, wie gut es mit tut, mit anderen mich darüber auszutauschen.
Weil:
* Ich bin nicht allein.
* Ich lernen die Gefühle anderer kennen
* Ich entwickle ein gutes Gefühl für die anderen Beziehungsstile (nicht nur meinen)
* Ich löse das Thema für mich Schritt für Schritt - und werde immer sicher in meinen Bindungen & Beziehungen.
In eine Workshop-Beschreibung zu schreiben, dass ich mich oft beim vermeidenden Beziehungsstil entdecke... ist kein Vermeiderverhalten mehr 😊. Halleluja!
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**🎁 Das kannst erwarten**
Ich lade Dich zu diesem Workshop ein, damit Du einen weiteren Schritt Richtung mehr Leichtigkeit & Ehrlichkeit in Beziehung gehen kannst. Ich werde eine kleine Einführung zu den Bindungsstilen geben - und dann steht der Austausch miteinander im Mittelpunkt:
* Was sind Situationen, die mich triggern?
* Wie geht es mir dann?
* Wie reguliere ich mein Nervensystem?
Meine Erfahrung ist: Austausch & Offenheit hilft, mit sich selbst und anderen relaxter zu werden.
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Ein Link oder ein Buch zur Vorbereitung findest Du weiter unten. Es wäre gut, wenn Du eines von beiden bereits gelesen hättest oder von anderer Seite Vorwissen zu den Bindungstypen / Beziehungstypen hast.
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**⏰ Die Türen sind offen ab 18:15 Uhr. Komm am besten schon 18.15 Uhr**
Mantel aufhängen, Toilette, eine Runde schwatzen und los ...
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**❓ Darf ein zweites Mal kommen?**
Ja, sehr gern. Ich halte es sogar für sinnvoll, mehrfahr zu kommen, wenn Dir der Workshop gefallen hat: Das Thema vertiefen, die eigenen Beobachtungen aus den letzten Wochen verarbeiten und sich mit neuen & alten Bekannten über das Thema weiter austauschen.
💬 **Agenda**
18:15 Uhr - Doors Open & Ankommen
18:30 Uhr - Start des Workshops
* Einführung, Vorstellung
* Kleines Kennenlernen
* Einführung in das Thema durch mich
* Verständnisfragen
* Verschiedene Austauschrunden mit Vertiefungsfragen (der größte zeitliche Anteil)
* Offene Fragen
21:30 Uhr - Ende
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Zwischendurch machen wir eine kleine Pause.
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Tausche Dich mit Gleichgesinnten über ein wesentliches Thema Deines Lebens aus. Du kannst immer wählen, mit wem Du Dich in welcher Tiefe unterhalten möchtest. Dein Gegenüber natürlich auch :). Nein heißt nein, Ja heißt Ja 🤗
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**🏠 Der Veranstaltungsraum**
* Wir haben einen wunderschönen Raum im Kieztreff in Berlin Mitte (mit sauberen Toiletten!).
* nähe Hackescher Markt. Sehr gut mit den Öffis zu erreichen.
* Wenn Du vor Ort ankommst, ist alles ausgeschildert.
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**🎒 Das bringst Du mit ...**
* Etwas zu trinken (z.B. deine Wasserflasche, keinen Alkohol!)
* Wenn Du magst: Zettel und Stift.
* Du solltest satt sein und vorher gegessen haben
* Bargeld für den Wertschätzungsbeitrag (10-20 Euro)
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📋 **Kann ich mich vorbereiten?**
Ja! Vielen Menschen sind die Beziehungstypen bekannt. Wenn Du etwas Grundwissen hast, ist das sehr nützlich für den Workshop.
Ansonsten empfehle ich diesen Link zu lesen:
Link: [Welcher Beziehungstyp bin ich?](https://chrisbloom.de/blog/welcher-beziehungstyp-bin-ich-mit-test/)
Dieses Buch ist eine sehr gute Einführung in den Workshop. Der Workshop wird sich daran orientieren:
* **[Buch: Warum wir uns immer in den falschen verlieben](https://amzn.to/498A9js) (Werbung, Amazon-Link)**
[Werbung: Als Amazon-Partner verdiene ich an qualifizierten Verkäufen.]
Das Buch orientiert sich an Liebesbeziehungen, die Erkenntnisse sind meiner Meinung nach aber auf alle menschliche Beziehungen anwendbar.
🚫 **Was ist der Workshop nicht:**
Der Workshop ist kein therapeutisches Angebot. Dafür bin ich nicht ausgebildet (bisher noch nicht mal im Selbststudium).
Wenn Du aufgrund der Erkenntnisse beim Lesen des Buches, der Links oder der Gespräche auf dem Workshop zum Ergebnis kommst, dass eine Therapie für Dich sinnvoll sein kann, dann wäre das ein richtig guter Schritt.
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💫 **Warum der Workshop gut für Dich ist**
* Ich glaube: Niemand ist perfekt. (und gleichzeitig deshalb genau richtig 🙂)
* Ich glaube, dass jeder in wenigstens minimaler Form manchmal Arten von unsicheren Bindungsverhalten zeigt
* Gleichzeitig wird jeder im Leben mit Menschen zu tun haben, die ein unsicheres Bindungsverhalten zeigen.
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Mit sich selbst und anderen reflektiert umgehen zu können, finde ich eine zentrale Fähigkeit im Leben.
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Ich finde, dass gute menschliche Beziehungen sind der zentrale Schlüssel zu einem erfüllten Leben sind (das finden laut Jacobsstudie übrigens 85 Prozent der Menschen in Deutschland).
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Die Bindungstypen / Bindungsverhalten sind meiner Meinung nach ein zentrales Modell, um gute menschliche Beziehungen führen zu können.
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🧑🏼 **Mehr über mich:**
Ich forsche seit 5 Jahren zu guten Freundschaften, wie man diese aufbaut und vertieft. Du erfährst mehr über mich auf [www.abenteuer-freundschaft.de](www.abenteuer-freundschaft.de).
Auf Meetup veranstalte ich Freundschafts-Workshops, Wanderungen, Spaziergänge, Männerabende, Frauen-Freundschafts-Workshops und Themenabende zu Vertiefung psychologischer Fragen. Außedem bin ich ausgebildeter NLP-Lehrtrainer ([DVNLP](https://www.dvnlp.de/)) & Coach.
**Ich freue mich Dich zu sehen und auf einen interessanten, efahrungsreichen Workshop!**
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**🌳 Vielleicht auch für Dich interessant:**
**📘 Befreiung von Scham & Schuld:** Gemeinsame Besprechung eines Buches. Die Wurzel von Kindheitsprägungen & dysfunktionalen Glaubenssätzen verstehen.
[https://www.meetup.com/abenteuer-freundschaft/events/312149793/](https://www.meetup.com/abenteuer-freundschaft/events/312149793/)
\-\-\-\-\-\-\-\-\-\-\-\-\-\-
**👋🏽 Get in touch & stay in touch:**
**✈ Telegram-Kanal: [t.me/abenteuer_freundschaft](http://t.me/abenteuer_freundschaft)**
für Events, Workshops & Neuste Erkenntnisse aus der Freundschaftsforschung (Überschriften)
**✉ Freundschafts-Newsletter:** [https://abenteuer-freundschaft.de/newsletter](https://abenteuer-freundschaft.de/newsletter)
Alle 4 Wochen das Neuste aus der Freundschaftsforschung; oft schreibe ich seltener, nämlich nur dann, wenn es wirklich etwas zu berichten gibt.
**🔥 6 Zutaten großartiger Freundschaften**
Seit 2020 forsche ich, was großartige Freundschaften wirklich ausmacht. Ein Ergebnis ist das 30seitige eBook: "Die 6 Zutaten großartiger Freundschaften". Du erhältst das eBook zurzeit kostenlos, wenn Du Dich für den Newsletter anmeldest: [https://abenteuer-freundschaft.de/newsletter](https://abenteuer-freundschaft.de/newsletter)
**🎭 Meet-Up-Gruppe:** [https://www.meetup.com/g/abenteuer-freundschaft/](https://www.meetup.com/g/abenteuer-freundschaft/)
Hier bist Du schon: Workshops, Spaziergänge, Wanderungen, Treffen, Eislaufen, Eisbaden, Männer-Abende, Freundinnen-Workshops, Sonntagsausflüge
MUSICIANS MEET UP & JAM SESSION
## **DNA. presents "ARTISTS MEET UP & JAM SESSION"**
##### ****\- a Free & Creative Space for Artists of all kinds to Connect\, Share & Grow\. Together\.
In this space, it's all about community, creativity & collaboration.
Whether You're a storyteller, musician, poet, dancer, or visual artist, this space welcomes every form of expression.
> Every respectful person is invited to join.
We talk, we drink, we laugh, we get to know each other & we share our Stories.
**WHEN:**
Every Monday
7 - 11 pm
**LINE UP:**
DOORS & MEET UP: 7 pm
MEET & GREET: 7 - 8 pm
JAM SESSION: 8 - 11 pm
ATELIER FLOOR (HOUSE MUSIC): 9 - 11 pm +
**SET UP:**
for the Jam Session... there is a full band set up available
**WHERE:**
[DNA. ART HOUSE](https://maps.app.goo.gl/4XrC8gTPtdDGb3oB6)
Wrangelstraße 25
10997 Berlin
##### **TICKETS:**
Box Office: Free for DNA. Members\* / 5e regular (Daily Membership\*\*)
**+ FREE ENTRY & FREE DRINK** for Every Artist joining the Jam Session
**SIGN UP:**
No signup needed – just come over & be part of our Creative Community.
For more info see: [www.dna-artclub.com](https://www.google.com/url?q=https://www.google.com/url?q%3Dhttp://www.dna-artclub.com%26amp;sa%3DD%26amp;source%3Deditors%26amp;ust%3D1726165890491369%26amp;usg%3DAOvVaw0tJ9La9WXHWzLDW3XsmuEZ&sa=D&source=docs&ust=1726165890529967&usg=AOvVaw2auoUIdwYdu4PnO3_kfvNh) / follow us on IG: [@nightart.club](https://www.instagram.com/nightart.club) :)
See Us Soon.
Love.
DNA.
**_____________________________**
**\*Members of Dair Night Art e.V. and Subscribers of DNA. Art GbR.**
**\*\*By entering the DNA. ART HOUSE, You agree to comply with the [Hausordnung of Dair Night Art e.V.](https://dairnight.com/hausordnung) and [Geschäftsordnung of Dair Night Art e.V.](https://dairnight.com/geschaftsordnung) Please ensure You review these documents thoroughly in advance.**
**\*\*\*NOTE: By purchasing a ticket for this event, you grant us permission to integrate your contact data into our Database. This allows us to securely save and utilize your contact information to keep you updated about event details, relevant communications and future events. Your privacy and data security are important to us, and we assure you that your information will be handled with the utmost care and in accordance with our privacy policy = see [https://www.dna-artclub.com/privacy-policy.](https://www.dna-artclub.com/privacy-policy.)**
**Thank You for Your understanding and support.**
Online German speaking
2nd in 2026
https://meet.google.com/apq-pyrk-acp
Join us to speak German and make new friendship.
IT’S A DATE, Berlin! Singles Event | Connection Games
IF THE EVENT IS FULL, PLEASE USE THE LINK BELOW TO SIGN UP
[Register Now – No Late Bookings]
[https://consciousconnectionsclub.com/join](https://consciousconnectionsclub.com/join)
This isn’t a random social hour.
It’s a space for real connection — grounded, warm, playful, and open-hearted. Whether you’re here to meet someone special or simply expand your circle, we’re creating a culture where real relationships (romantic or platonic) can grow.
### How to Join:
To ensure an intentional space, there are two ways to join our Singles Events:
1\. By Invite — If someone already registered invites you\, you can skip the Welcome Call and dive in\.
2\. Welcome Call — No invite? No problem\. [Just complete a Welcome Call to attend](http://consciousconnectionsclub.com/fasttrack). This helps us create a space that feels safe, open, and aligned for everyone involved.
### The Event:
5:30–7:30 PM (Online)
A two-hour Connection Games session on Zoom. Expect depth, play, and presence — not small talk.
The Zoom link is sent 24 prior to start.
8 PM (In-Person)
A casual, in-person gathering to continue the experience facilitated online.
📍Location: Only shared with registered participants 24 hours before the event.
### Registration
No last-minute bookings.
To attend, [complete your Welcome Call in advance](http://consciousconnectionsclub.com/fasttrack) to secure your spot.
### What You’ll Walk Away With:
* An oxytocin high from meaningful connection
* The potential for deep friendships — and sometimes more
* A sense of being met — not judged or evaluated
* Relational tools you can use in all areas of life
This is more than just an event.
We’ve had people say: “This restored my faith in humanity.”
***
Ready to meet the people in your city you’ve been looking for?
We’d love to welcome you.
See you there,
Eloah & The Conscious Connections Team
Social Software Events This Week
Discover what is happening in the next few days
Chitta Walks - Awareness in Motion
Chitta Walks is for people whose days move fast, while the mind never fully lands. Thoughts keep looping even when nothing is urgent. The body moves, but attention is elsewhere. Over time, this disconnect drains clarity and ease.
This walk is a simple reset.
We meet in Berlin’s Tiergarten and walk at a gentle pace. Parts of the walk are in silence, with light guidance and a few short prompts. The walk itself is the practice, bringing body and mind back into the same moment.
No apps. No performance. Just a clear space to slow down and notice what is happening.
If you want to slow down without withdrawing from life, join a Chitta Walk.
✨ **What to expect (approx. 90 minutes):**
* A short arrival and orientation
* A guided silent walk (phones off, no conversation)
* One concise science-based impulse on attention or stress
* Optional reflection in pairs or small groups
* A simple takeaway or experiment for daily life
🚶**Who this is for:**
* Professionals, creatives, and people in transition.
* People who feel mentally busy and want more clarity and balance.
* Those curious about mindfulness, but grounded and practical.
* Anyone comfortable with silence and gentle self observation.
🔔 **Practical notes:**
* Duration: 60-90 minutes
* Wear comfortable shoes and weather-appropriate clothing
* No prior experience needed
* Group size is limited to keep the space quiet and focused
🧭 **Facilitator:**
My name is Partha Sarathi, you can call me PS. I have lived in Berlin for over 12 years. With a background in physics and materials science, my interest in mindfulness grew through personal experience with stress and health challenges. I facilitate the space and structure of the walk, inviting shared exploration rather than instruction.
🤔 **Why Chitta Walks?**
Chitta is a Sanskrit word referring to the mind or field of awareness, used here in a practical, non-religious sense.
Chitta Walks is about noticing how the mind works by slowing down and walking together. Mindful walking makes thought patterns visible in real time, while moving and sensing in the world.
The name points to a simple capacity: noticing what is happening in the mind without immediately trying to fix, judge, or optimize it.
🌿 **Possible effects:**
A calmer nervous system.
Clearer attention.
A felt sense of being more present in your body.
Subtle insights into how your mind reacts under everyday conditions.
A quieter, more grounded way of moving through the city.
**Come as you are. Walk. Notice. Leave with a little more space inside.**
PyData Berlin 2026 January Meetup
Welcome to the PyData Berlin January meetup!
We would like to welcome you all starting from 18:30. There will be food and drinks. The talks begin around 19.15 and the doors will close at 18:45. **Make sure to arrive on time!**
Please provide your first and last name for the registration because this is required for the venue's entry policy. If you cannot attend, please cancel your spot so others are able to join as the space is limited.
**Host**:
**Spiced Academy** is excited to welcome you to this month's version of PyData.
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The Lineup for the evening
**Talk 1: From Grape Stomping to Gorilla Trekking: AI-Driven Discovery of Novel Interests at GetYourGuide**
**Abstract**: UX research shows that discovering new, unexpected and unique things to do in a destination is among the most important needs for travelers. However, surfacing these “hidden gems” at scale is a major challenge for any dynamic marketplace. At GetYourGuide, we tackled this by combining large language models, semantic vector embeddings, and a robust human-in-the-loop process to automatically identify and categorize novel customer interests. Join me as I dive into how we created this AI-driven solution and how we achieved scalable, granular and relevant categorization of our activities.
**Description:** How do you help a traveler find something they never knew they wanted? In this talk, I will explore the exciting journey of developing an AI-driven solution to identify novel customer interests at GetYourGuide. With thousands of new activities onboarded weekly, manual categorization became impractical, prompting the need for automation.
This talk will walk you through our end-to-end solution:
* The problem: the challenges travelers face in discovering relevant and unique experiences, the organizational complexity of this on our platform and its business impact
* The AI journey: From raw LLM-based extraction to vector embeddings, clustering, all the way to a robust human-in-the-loop pipeline. I’ll share how we iterated from noisy prototypes to an impactful system, launching 300+ new interests and driving significant engagement and net revenue uplifts
* What we learned: The realities of working with LLMs in production-like settings, more specifically hallucinations and issues with relevance, granularity and semantic deduplication. We found out that the line between useful innovation and unwanted noise can be surprisingly fine when using LLM’s. I’ll share practical examples of these challenges and how we addressed them.
* Impact and future directions: How we achieved a 10x increase in manual acceptance of AI-suggested interests in just two iterations, and what’s next for AI-driven discovery at GetYourGuide
**Bio**: **Morena Bastiaansen** holds a master’s degree in Econometrics from the University of Amsterdam and currently works as a Data Scientist at GetYourGuide in Berlin. She combines her passions for machine learning, language, and travel to build impactful systems for travelers worldwide, with a current focus on personalization in email marketing. Morena is also actively involved in the local tech and ML community.
**Talk 2: Deep dive into data streaming security**
**Abstract**: Data streaming is powering everything from fraud detection and real-time analytics to patient monitoring and order fulfillment. But as the role of streaming grows, so does the risk - because many streaming platforms, like Apache Kafka, aren't secure by default. In this talk, we’ll take a practical look at data streaming security through the lens of Kafka, one of the most widely adopted streaming platforms in the world. We'll walk through what can go wrong - real examples of exposing 14M patient-doctor messages, or years of real-time delivery info to the internet - and what it takes to do it right. We'll cover the key pillars of securing a streaming system: encryption in transit and at rest, access control, monitoring, and key management. Along the way, we’ll look at the trade-offs like disk encryption vs. end-to-end encryption, what is behind field-level and envelope encryption, and the realities of using customer-managed keys in regulated industries. We'll also explore how streaming security has evolved, how real vulnerabilities (like CVE-2019-12399) highlight the need for patching and monitoring, and what successful multi-layered security looks like in production - from financial institutions to healthcare platforms. If you're building, running, or scaling streaming systems, this talk will help you see the security blind spots and give you concrete steps to protect the data flowing through your pipelines.
**Bio**: Olena Kutsenko is a Staff Developer Advocate at Confluent and a recognized expert in data streaming and analytics. With two decades of experience in software engineering, she has built mission-critical applications, led high-performing teams, and driven large-scale technology adoption at industry leaders like Nokia, HERE Technologies, AWS, and Aiven.
A passionate advocate for real-time data processing and AI-driven applications, Olena empowers developers and organizations to use the power of streaming data. She is an AWS Community Builder, a dedicated mentor, and a volunteer instructor at a nonprofit tech school, helping to shape the next generation of engineers.
As an international speaker and thought leader, Olena regularly presents at top global conferences, sharing deep technical insights and hands-on expertise. Whether through her talks, workshops, or content, she is committed to making complex technologies accessible and inspiring innovation in the developer community.
**Lightning talks**
There will be slots for 2-3 Lightning Talks (3-5 Minutes for each) between the two main talks.
Kindly let us know if you would like to present something :)
\*\*\*
NumFOCUS **Code of Conduct**
THE SHORT VERSION
Be kind to others. Do not insult or put down others. Behave professionally. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate for NumFOCUS.
All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery are not appropriate.
NumFOCUS is dedicated to providing a harassment-free community for everyone, regardless of gender, sexual orientation, gender identity, and expression, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of community members in any form.
Thank you for helping make this a welcoming, friendly community for all.
If you haven't yet, please read the detailed version here: https://numfocus.org/code-of-conduct
\*\*\*
[face to face] Interview Simulation
Join this **Interview Simulation** session — to sharpen the skills for both interviews **and** architectural pitches.
💡 How it works
The event is split into three parts:
1. **Most common behavioral & HR questions** \- you will receive a printed list of behavioral/HR questions and we brainstorm tips on how to prepare for them
2. **Interview Simulation (10 minute rounds)** – One participant acts as the interviewee and answers a round of behavioral and design-focused questions. Each other participant gets to ask him one interview question.
3. **Feedback Round** – The group provides feedback on communication, structure, and clarity. Constructive criticism is encouraged.
💡You will be asked:
* **Behavioral questions** (“Tell me about yourself”, “Describe a challenge you faced...”)
* **Technical questions** (based on your tech stack)
* **Light design problems** (high-level reasoning, not code)
No need to prepare anything in advance — just bring curiosity and an open mind.
Feel free to bring your CV if you’d like feedback from others, or share a few words if you’re currently job hunting. If so, we will also brainstorm answers to more common questions that you were asked.
Whether you’re preparing for an interview or simply want to grow as a software designer or architect, this session is for you.
Note: location was changed to Strandbad Mitte cafe: https://share.google/ahAXMM91XoJY6fFez
💡Resources:
* IT portfolio ideas: ideabrowser.com , reddit.com/r/SideProject
* mock interview platforms: pramp.com , interviewbit.com , finalroundai.com
* online coding platforms: leetcode.com, hackerrank.com, codewars.com , codingame.com , projecteuler.net ,techiedelight.com , exercism.org
* confidence building exercises: [Confidence exercises ](https://limewire.com/d/o4tZw#RLA03qdOxU) , [reddit discussion](https://www.reddit.com/r/jobs/comments/1cjlblp/how_in_the_world_do_you_keep_your_selfesteem_up/) , [another discussion](https://www.quora.com/How-do-I-keep-my-self-esteem-from-being-destroyed-while-job-hunting) , [quora discussion](https://www.quora.com/In-my-late-50s-I-find-myself-out-of-work-for-the-first-time-in-30-years-How-do-I-replace-apprehension-and-anxiety-with-confidence-to-job-hunt)
* success stories: [story 1](https://www.reddit.com/r/RemoteJobseekers/comments/1p8faip/i_finally_landed_a_remote_job_after_10_months_of/), [story 2](https://www.reddit.com/r/RemoteJobseekers/comments/1fdpeg2/how_i_landed_multiple_remote_job_offers_my_remote/)
PyData x Apache Kafka® Meetup
**IMPORTANT PLEASE RSVP AT:** https://www.meetup.com/pydata-berlin/events/312771201/
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We would like to welcome you all starting from 18:30. There will be food and drinks. The talks begin around 19.15 and the doors will close at 18:45. **Make sure to arrive on time!**
Please provide your first and last name for the registration because this is required for the venue's entry policy. If you cannot attend, please cancel your spot so others are able to join as the space is limited.
**Host**:
**Spiced Academy** is excited to welcome you to this month's version of PyData.
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The Lineup for the evening
**Talk 1: From Grape Stomping to Gorilla Trekking: AI-Driven Discovery of Novel Interests at GetYourGuide**
**Abstract**: UX research shows that discovering new, unexpected and unique things to do in a destination is among the most important needs for travelers. However, surfacing these “hidden gems” at scale is a major challenge for any dynamic marketplace. At GetYourGuide, we tackled this by combining large language models, semantic vector embeddings, and a robust human-in-the-loop process to automatically identify and categorize novel customer interests. Join me as I dive into how we created this AI-driven solution and how we achieved scalable, granular and relevant categorization of our activities.
**Description:** How do you help a traveler find something they never knew they wanted? In this talk, I will explore the exciting journey of developing an AI-driven solution to identify novel customer interests at GetYourGuide. With thousands of new activities onboarded weekly, manual categorization became impractical, prompting the need for automation.
This talk will walk you through our end-to-end solution:
* The problem: the challenges travelers face in discovering relevant and unique experiences, the organizational complexity of this on our platform and its business impact
* The AI journey: From raw LLM-based extraction to vector embeddings, clustering, all the way to a robust human-in-the-loop pipeline. I’ll share how we iterated from noisy prototypes to an impactful system, launching 300+ new interests and driving significant engagement and net revenue uplifts
* What we learned: The realities of working with LLMs in production-like settings, more specifically hallucinations and issues with relevance, granularity and semantic deduplication. We found out that the line between useful innovation and unwanted noise can be surprisingly fine when using LLM’s. I’ll share practical examples of these challenges and how we’re iterating to address them.
* Impact and future directions: How we achieved a 10x increase in manual acceptance of AI-suggested interests in just two iterations, and what’s next for AI-driven discovery at GetYourGuide
**Bio**: **Morena Bastiaansen** holds a master’s degree in Econometrics from the University of Amsterdam and currently works as a Data Scientist at GetYourGuide in Berlin. She combines her passions for machine learning, language, and travel to build impactful systems for travelers worldwide, with a current focus on personalization in email marketing. Morena is also actively involved in the local tech and ML community.
**Talk 2: Deep dive into data streaming security**
**Abstract**: Data streaming is powering everything from fraud detection and real-time analytics to patient monitoring and order fulfillment. But as the role of streaming grows, so does the risk - because many streaming platforms, like Apache Kafka, aren't secure by default. In this talk, we’ll take a practical look at data streaming security through the lens of Kafka, one of the most widely adopted streaming platforms in the world. We'll walk through what can go wrong - real examples of exposing 14M patient-doctor messages, or years of real-time delivery info to the internet - and what it takes to do it right. We'll cover the key pillars of securing a streaming system: encryption in transit and at rest, access control, monitoring, and key management. Along the way, we’ll look at the trade-offs like disk encryption vs. end-to-end encryption, what is behind field-level and envelope encryption, and the realities of using customer-managed keys in regulated industries. We'll also explore how streaming security has evolved, how real vulnerabilities (like CVE-2019-12399) highlight the need for patching and monitoring, and what successful multi-layered security looks like in production - from financial institutions to healthcare platforms. If you're building, running, or scaling streaming systems, this talk will help you see the security blind spots and give you concrete steps to protect the data flowing through your pipelines.
**Bio**: Olena Kutsenko is a Staff Developer Advocate at Confluent and a recognized expert in data streaming and analytics. With two decades of experience in software engineering, she has built mission-critical applications, led high-performing teams, and driven large-scale technology adoption at industry leaders like Nokia, HERE Technologies, AWS, and Aiven.
A passionate advocate for real-time data processing and AI-driven applications, Olena empowers developers and organizations to use the power of streaming data. She is an AWS Community Builder, a dedicated mentor, and a volunteer instructor at a nonprofit tech school, helping to shape the next generation of engineers.
As an international speaker and thought leader, Olena regularly presents at top global conferences, sharing deep technical insights and hands-on expertise. Whether through her talks, workshops, or content, she is committed to making complex technologies accessible and inspiring innovation in the developer community.
EM Kata #15: SDLC 2.0: Reinventing SDLC with AI
This time, we explore **how the growth of AI is shaping a new SDLC and which evolution strategy to choose for your team**.
We will focus on which metrics truly help manage delivery, and which ones only create an illusion of progress and AI adoption.
Hands-on practice in small groups and a live battle of different views and approaches — everything that you love in EM Katas.
❗❗❗ **Register here** ➡️ https://luma.com/aug0ujkl ⬅️ ❗❗❗
**❓ What is an EM Kata?**
EM Kata is a playground where Engineering Managers\* can practice their skills and receive immediate feedback.
**\* - 👨🔬 / 👩🔬EM Kata is also beneficial for**
* **Senior Leaders:** Head of Engineering, Engineering Directors, VPs, CTOs - to practice and enhance mentoring and coaching skills.
* **Tech/Team Leads:** To acquire essential skills for a successful transition to an EM role.
* **Senior Software Engineers:** To gain insight into EM responsibilities and explore if a leadership career path interests them.
* **Agile Coaches:** To better understand the challenges faced by EMs and the skills they require, enabling better support for them at work.
Each small group works on identifying the root causes of the challenges by analysing them from different perspectives, determining the most efficient strategy to solve them, developing a detailed plan, and necessary team constellation changes & architecture.
**🕑 Event Schedule**
18:00 – Doors open for snacks, drinks, and networking
18:30 – Introduction
18:50 – EM Kata: working and forecasting in small groups
20:00 – Senior Leadership round: challenging assumptions, shaping the future
From 21:00 to 21:30 — Networking and discussions.
**📍 Venue**
**Delivery Hero**
Oranienburger Str. 70, 10117 Berlin
**📣 Spread the Word**
**Love our meetups?** Help us grow the community!
Share your experience on LinkedIn—whether it’s what you’ve learned, key takeaways, or why you enjoy EM Kata. By spreading the word, you’ll help more engineering managers and aspiring tech leaders find a safe environment to practice and enhance their skills.
We believe it’s much more fun to have fun with friends, so come join us and bring your friends along!
Tag us **#EMKata #Meetup by #SEML about #TechLeadership**.
**🤝 Sponsored by [Delivery Hero](https://www.deliveryhero.com/)**
A big shout-out to [Delivery Hero](https://www.deliveryhero.com/) for sponsoring our event and supporting our mission to foster a tight-knit community of engineering leaders.
**👍 Code of Conduct**
We adhere to the [Berlin Code of Conduct](https://berlincodeofconduct.org/) to ensure a welcoming and respectful environment for all participants.
30 min Swim and Coffee 🌅🌊👋☕
**Join us for a swim at Stadtbad Tiergarten Pool (near Hauptbahnhof)!**
Hey everyone,
We are doing a casual non-professional swim. It's an indoor heated (+26°C) pool, and I'd love for you to join us! We'll be gathering for a casual chill 30-minute swim. No need to race or compete, just enjoy the water and calm after completing the swim.
Afterwards we go to a nearby café for coffees and chat, but no pressure to stick around - totally optional!
**Bring**
* swimsuit
* towel
* 1 Euro coin (for a locker)
* ticket (5.50€, buy online or on site)
**Where**
In the entrance hall inside the pool.
The Meadow – Orga Circle 🦋 Social Butterfly Club
Would you like to support and engage in building a social club for newcomers in Berlin?
Every year, thousands of people move to this city knowing almost no one. The Social Butterfly Club exists to help newcomers find connection, belonging, and an active social life — and The Meadow is the weekly organizing circle where this work happens.
**The Meadow** is a calm, recurring meetup for people who want to help shape and sustain the club together. It’s a practical working circle for those who enjoy showing up regularly, taking responsibility, and contributing to something that grows over time. No prior experience needed — just reliability, curiosity, and a willingness to engage.
About
The Social Butterfly Club 🦋 is a Berlin-based community that has been bringing people together for over three years. Each gathering is part of a larger framework designed to help friendships grow through shared experiences in the city — with a long-term vision of turning Berlin itself into a shared, playful experience.
Curious to learn more about the Social Butterfly Club?
You can explore the bigger picture and stay connected here:
[https://social-butterfly-berlin.kit.com/join](https://social-butterfly-berlin.kit.com/join)
Questions? Check our FAQs:
[https://socialbutterfly.berlin/meetup-faq/](https://socialbutterfly.berlin/meetup-faq/)
Meet your host
I’m Julia — a Berlin local who loves bringing people together. My path went from growing up in a dance school to studying philosophy to working in IT support, and somehow all of that led me here: hosting meetups and creating spaces where people can show up, relax, and connect.
Insta [https://www.instagram.com/juwaberlin/](https://www.instagram.com/juwaberlin/)
LinkedIn [https://www.linkedin.com/in/julia-waehnert/](https://www.linkedin.com/in/julia-waehnert/)
Social Software Events Near You
Connect with your local Social Software community
Intro to GitHub Copilot: Your AI Pair Programmer - Chris Steele
**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
**Abstract**
GitHub Copilot is rapidly changing how developers write, understand, and maintain code. Powered by generative AI and deeply integrated into modern development environments, Copilot acts as an intelligent coding assistant, helping developers move faster while maintaining quality and focus.
In this session, we’ll explore what GitHub Copilot is, how it works, and where it fits into a real-world developer workflow. We’ll break down what Copilot can (and cannot) do, where it can be used, and how licensing differs for individuals and organizations. Most importantly, this talk goes beyond theory with a live, hands-on demo showcasing Copilot inside the IDE and on GitHub, demonstrating how it can assist with code generation, refactoring, learning new APIs, and accelerating day-to-day development tasks.
Designed for developers, technical leads, and engineering managers, this session provides a practical introduction to AI-assisted development, highlights best practices for getting value from Copilot, and closes with guidance on how to continue learning and evolving alongside this rapidly advancing tool.
Attendees will leave with a clear understanding of how GitHub Copilot can enhance productivity, improve developer experience, and fit into modern software teams today, not someday.
**YouTube Link**
TBA
Software ate the world, Agents are eating Software Engineering
2026 may be the last year many developers write code by hand. We need coding agents to solve complex problems in production codebases, but vibe coding alone won’t get us there. Vibe coding is all gas, no brakes. It burns up the context window until the agent slips on its own slop. You can go fast at first, but the more you stuff into the context window, the more tangled its outputs get. While the industry is rapidly increasing code generation speed, we still have to understand, review, merge, and maintain what gets shipped.
This talk featuring Michael Geiger will outline how coding agents (Claude Code + Gas Town) work and a framework for orchestrating them to solve complicated problems in complex codebases. It’s about steering the model: doing the research to align intent, planning the approach up front, implementing in parallel steps, and breaking early. Human judgment still matters, but it should be spent on high-leverage decisions: what to build, what to forbid, and “what is quality?”, not cleaning up slop. Attendees will leave with a checklist to identify workflow and environment gaps that hold agents back, so you and your team can ship higher-quality software starting tomorrow.
Central Ohio .NET Developers Group
* Who Can Attend *
The Central Ohio .Net Developers Group meetings are free and open to the public!
All developers; professional, student, and hobbiest are welcome and encouraged to attend.
* When we meet *
The Central Ohio .Net Developers Group meets on the 4th Thursday of every month.
* Where we meet *
Please check our Meetup group link below for location details!
* Join our Meetup Group *
https://www.meetup.com/Central-Ohio-NET-Developers-Group-CONDG/
Soft Life Society Cultural Potluck Night
Join Soft Life Society for a cozy and intentional Cultural Potluck Night centered on community, connection, and culture.
This is a potluck-style gathering where each guest is invited to bring a dish that represents their culture, heritage, or a family tradition. We will be tasting and sharing each other’s cultural foods while connecting through conversation, laughter, and soft living.
The evening will also include fun games and a prize for the winner. Drinks will be available, but guests are welcome to bring their own favorite beverage if they prefer.
This is a relaxed, welcoming space to slow down and enjoy a beautiful evening together. Limited spots available. RSVP required.
Pickleball.
CHANGED to WEDNESDAYS
COLUMBUS RECREATION CENTERS require membership fee to play. Register & Pay at the desk when you arrive. $5 day pass is available.
I have some extra pickle ball paddles and balls if you don’t have one. Definitely bring your own paddle if you have one and bring some balls if you have them.
Legal Stuff: The event hosts/Organizers are just fellow member volunteers. By participating in any event, you assume all risks of liability and injury inherent in these activities. You are responsible for your own safety and for determining if you are in condition fit to participate. You are also responsible for knowing and abiding by all laws and rules during your participation in any event.
Photos & or Video: by attending these events you acknowledge photos and or video may be taken and used on this and other platforms.
COhPy Monthly Meeting
**NEW LOCATION: Improving Office in Franklinton**
Physical location:
Improving Office
330 Rush Alley Suite #150
Columbus, OH 43215
Schedule:
* 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages.
* 6:30 to 8:00 pm. Main meeting and presentation(s).
For this first meeting of the year, we will be reviewing submissions for the
[Your Program is Hideous and Obfuscated Challenge (YPHOC). ](https://docs.google.com/document/d/13zbxwElpJqPMuAN4Ele2hUgsqtFKzH3OCTL5NEeiLKQ)Submissions for this challenge are due by January 12th, 2026. The details can be found here:
or on our website
http://www.cohpy.org
See Our [Parking Map](https://docs.google.com/presentation/d/1u2A4fLNlxwLJn0KA_hKc8bnFlFHLvsHBDh-_8wzX_tk/edit?usp=sharing)
We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact centralohpython@gmail.com











![[face to face] Interview Simulation](https://secure.meetupstatic.com/photos/event/2/4/d/highres_531120589.webp?w=640)










