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Episode 4 of the 2026 Edition - 15 years of fun with Kotlin

Episode 4 of the 2026 Edition - 15 years of fun with Kotlin

Thu, Jul 16, 4:30 PM
From Kotlin User Group Berlin
4.6

In July 2011, Kotlin was unveiled to the public as an open-source project by JetBrains — [first announced](https://blog.jetbrains.com/kotlin/2011/07/hello-world-2/) on July 19, 2011. A few years later, on February 15, 2016, [Kotlin 1.0 was released](https://blog.jetbrains.com/kotlin/2016/02/kotlin-1-0-released-pragmatic-language-for-jvm-and-android/). And of course let's not forget the [annoucement by Google ](https://developer.android.com/kotlin/first?hl=en)that Kotlin became an offically supported language in 2019. Also our little group was founded in 2016. So we have a lot to celebrate: 15 years of Kotlin, 10 years of the 1.0 release, 7 years of Kotlin on Android, and 10 years of KUG Berlin. Join us at JetBrains HQ in Berlin and let's celebrate with `fun` ! **⚠️⚠️ Seats are limited — please register only if you plan to attend, and cancel early if you can't make it.** **Line-Up:** 👉 **Docs & DSLs: OpenAPI in Kotlin** For the past decade, OpenAPI has emerged as the de facto standard used for documenting HTTP servers. As its popularity has grown, back end frameworks have adopted some sophisticated integrations, allowing client code to be generated directly
from a running server. This talk will introduce you to OpenAPI tooling in Kotlin and how we were able to provide first-class support in Ktor. *by Bruce Hamilton* 👉 **15 years of fun** *by Maia Grotepass & the community* **Speaker Bios:** **🗣** **Maia Grotepass** Mobile dev since Cupcake. Android GDE. Kotlin enthusiast. Dogs make me happy. **🗣** **Bruce Hamilton** I've been a full-stack engineer for over 15 years now, working in Java, Javascript, and Kotlin. Currently, I'm working on Ktor, an open-source networking library and framework. More generally, I'm trying to elevate Kotlin to be the best server-side programming language in the industry!

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59 attendees
July 2026: ServiceNow Developer Meetup in Berlin

July 2026: ServiceNow Developer Meetup in Berlin

Thu, Jul 23, 4:00 PM
From Berlin ServiceNow Developer Group
4.8

**Important note: Please note that the event location changed. This event will be hosted at GovTech Deutschland, Max-Urich-Straße 3, 13355 Berlin.** **Hello ServiceNow Developers of Berlin!** We warmly invite you to the next ServiceNow Developer Meetup in Berlin! Whether you are a developer, admin, consultant, or architect, your ideas and suggestions are guaranteed to be valuable and will be incorporated into the functioning of our group. **What to Expect:** * **Networking and Community Building:** Meet new people who also work in the ServiceNow field. This is a great opportunity to connect with like-minded individuals and expand your professional network. * **Open Forum:** Share your experiences, ask questions, and provide feedback on what you would like to see in future meetups. * **Free Snacks and Drinks** **IMPORTANT!!!** We want these events to truly be a "safe space" for ServiceNow professionals, so all recruitment and sales activities are prohibited. The organizers reserve the right to exclude anyone from the event who violates this rule. **RSVP and Participation:** To help us plan better, please RSVP here on the event page. Your early confirmation will greatly assist us in making this event a success. **Note:** due to international community in Berlin, we plan to run these events in **English**. We are excited to continue this journey with you to build a strong and supportive ServiceNow community in Berlin. See you there! **Meetup Agenda (Titles will be finalised soon):** * **Welcome & Introduction** * **Ice Breaker && Get to Know** * **[Presentation:] Engineering Employee Happiness by Julia Humboldt** * **\[Presentation:\] Intelligent Risk Management \| KRITIS\, DORA\, NIS2 in 2026 by Raul Bukowiecki** * **Q&A, Recap** * **Networking & Informal Discussions**

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30 attendees
🚀 Learn Public Speaking — Every Wednesday - The Center, Potsdamer Platz

🚀 Learn Public Speaking — Every Wednesday - The Center, Potsdamer Platz

Wed, Jul 15, 5:15 PM
From Mercury Toastmasters – Master Public Speaking | English
4.8

An inspiring, high-energy meeting of public speaking, connection, and personal growth in the heart of Berlin. **Mercury Toastmasters Berlin** invites you to our weekly meeting at our new home at **Das Center, Potsdamer Platz**, in the stunning **Historic Imperial Breakfast Hall**. *Experience the **power of prepared speeches** loaded with bold ideas, participate in our **dynamic Impromptu Session**, and **gain valuable insights** during our feedback segment.* *Leave with practical tools, fresh ideas, and renewed inspiration.* *Whether you want to speak up at work, boost your presence, or just meet inspiring people, you’ll feel at home at Mercury Toastmasters Berlin.* *** **[What to Expect:](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)** ✨ A supportive space to speak, grow, and connect 🎤 Engaging prepared speeches ⚡ Fun, fast-paced impromptu speaking challenges 💬 Feedback session you can actually use 🌍 A friendly, international crowd (around 25–30 people) **Schedule** (times may vary) ⏰ 19:15 - Doors open & networking 🎙️ 19:30 - Prepared Speeches 🏓 20:35 - Impromptu Session (Guest welcome to join) ↩️ 21:00 - Constructive feedback 💬 21:30 - Food, drinks & relaxed socializing **No experience needed.** ***Come curious. Leave energized.*** *** **🤙 [Hear it from our members:](https://maps.app.goo.gl/eRtvR9DRNqU9WZQn7)** *“You can sharpen your public speaking skills and gain tons of confidence, while having fun and making new friends. Mercury is well-structured, fun, and affordable.”* — *Therese Pitt* *“Mercury gave me a safe place to speak, create, and grow. I love the multicultural vibe and supportive community. It’s the best place to learn and have fun.”* — *Krisztina Linka* *** **[Did You Know?](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)** Toastmasters is where people go to get better at speaking—and grow into confident communicators and leaders. Today [Toastmasters ](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)has 350,000+ members across 16,000 clubs in 143 countries. And [Mercury](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/) is one of the best places to experience it. So bring your curiosity, your energy—and just be yourself. Whether you’re just starting or ready to level up, there’s a place for you here. *** **[Wondering what you get as a member?](https://mercurytoastmasters.de/membership-mercury-toastmasters-berlin/)** Think expert feedback, real-world speaking practice, and a supportive crew that’s got your back. [See you Wednesday night! 🎉](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)

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13 attendees
Evening Worship Service

Evening Worship Service

Sat, Jul 11, 4:00 PM
From American Church in Berlin
4.7

Join us for a welcoming and reflective Saturday evening worship service in Engish. This service follows a classic liturgical form and includes Holy Communion, offering a meaningful and grounding way to end the week. The liturgy is a bit shorter than our Sunday service. After worship, stay for fellowship and conversation. Whether you are new to faith, returning after a long time, exploring Christianity, or deeply rooted in the tradition — you are truly welcome here. And when we say *all*, we mean **all**. Come as you are. You belong. We celebrate open communion, meaing all are wecome to recieve Holy Communion.

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2 attendees
Feierabend-Radtour entlang der Spree

Feierabend-Radtour entlang der Spree

Thu, Jul 16, 2:30 PM
From Brompton Berlin
5.0

# Feierabend-Radtour entlang der Spree 🌿🚴 Genieße mit uns eine entspannte Fahrradtour entlang der Spree und durch die grünen Ecken Berlins. Nutze das schöne Wetter, bevor der Sommer zu Ende geht! Wir starten am **Brompton Junction Berlin** und fahren gemeinsam bis zum **Bahnhof Ostkreuz**. Die Strecke ist entspannt und bietet eine tolle Gelegenheit, gemeinsam zu fahren, neue Leute kennenzulernen und den Sommerabend zu genießen. **Treffpunkt:** Brompton Junction Berlin **Treffzeit:** 16:00 Uhr **Abfahrt:** 16:30 Uhr **Ziel:** Bahnhof Ostkreuz Wir freuen uns auf eine schöne gemeinsame Ausfahrt! **Hinweis:** Leider können wir dieses Mal keine Fahrräder verleihen. Du bist herzlich eingeladen, dein eigenes Fahrrad mitzubringen. **Note:** Unfortunately, we won't be able to lend out bikes this time. You're very welcome to bring your own bike and join the ride.

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4 attendees
Sunday Church Service

Sunday Church Service

Sun, Jul 12, 3:00 PM
From Followers International Church

Our worship service starts with a welcome, singing, and brief Scripture reading and prayer. Then comes the biblical sermon, which is the main event. Feel free to stick around afterwards for more fellowship.

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1 attendee
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Frequently asked questions

Civic groups on Meetup are community-driven organizations that focus on local engagement and societal topics. They allow individuals to come together, discuss ideas, and participate in events aimed at bettering the community and addressing civic issues.

To find civic groups in Berlin, browse Meetup for local communities focusing on civic engagement and public affairs. Use search filters to narrow down categories and see groups meeting near you or virtually.

Yes, you can join multiple civic groups on Meetup. Engage with different communities to explore various public service activities and events aligning with your civic interests.

To see if there are events today, check Meetup’s event calendar. Filter by location and date to discover any civic-related meetups happening in Berlin on the current day.

Joining a civic group in Berlin can provide opportunities to engage in local issues, collaborate with passionate individuals, and make a meaningful impact within the community.

Berlin civic groups on Meetup function by organizing events and discussions focused on local issues and community improvement. Members usually attend regular meetings and participate in planned activities.

Many civic events are free to attend, but some might have a small fee based on resources needed or venue costs. Always check event details for any associated fees.

Yes, many civic groups in Berlin host online events that allow members to participate in discussions or listen to speakers through virtual platforms, expanding reach beyond geographical limitations.

While Meetup can help connect you with like-minded individuals, building friendships depends on ongoing engagement and interaction at events.

To RSVP for a civic event, log into your Meetup account, navigate to your chosen event, and click the RSVP button to confirm your attendance.

Group activity levels vary. Some may hold regular meetings year-round, while others organize events seasonally or around specific community needs.

Meetup focuses on group-oriented activities. However, some civic groups might have connections or initiatives that relate to individual volunteer opportunities.

If you can't find a specific civic group, consider starting your own Meetup community to gather individuals with shared interests and discuss important topics.

Yes, creating your own civic group is possible on Meetup. Establish a new group around a civic interest and organize events to connect with others.

Stay active by regularly attending events, participating in community discussions, and sharing ideas with others in your civic group. Engage deeply and build connections.