Developer Impact Days 2026 (Hybrid Event 2 of 3) | Cologne

Hybrid Tech Conference | Online worldwide + Onsite in Berlin & Cologne

This here is the registration for Cologne or online. 🙂
Click here to grab a seat for Berlin.

​Developers, DevOps, Architects, hands-on Techies - join a series of 3 tech events covering different R&D issues & trends that keep us up at night, starting on 21 July, with afternoons full of tech talks without annoying sales pitches!!

​What makes the events stand out?
🥷🧙‍♀️🧝🪄 Tech + Community-first: Join bloody honest tech insights from like minded techies together with other practitioners — not just watching, but discussing, reacting, and learning in real time.

​The upcoming 2 events with different topics and speakers will take place hybrid (online worldwide + onsite in Berlin & Cologne) on:
- 2nd September,
- 22nd October
The events are free of charge. Tickets to attend onsite, in person are limited.

If you’re curious about where the SDLC, software engineering, platform engineering and DevOps is going next - and how it impacts your life, this is a great place to plug in.

Let's make this an amazing shared community experience with tech in its center.
Join a variety of senior practitioners and run into like minded techies and discuss your thoughts with the community in a relaxed setting, with fingerfood and drinks...

👉 Agenda for the 2nd September:
13:00 Open Doors & local Networking in person in Berlin + Cologne
14:00 Official Welcome & online Livestream starts, Sebastian Grodzietzki
14:15 Event-Driven Architecture (EDA) & Event Sourcing: Stop asking for data. Announce what happened, and let the ecosystem react., Oliver Rebmann
14:45 Java modernization without getting paged at 2 a.m., Lars Besselmann
15:15 Quarkus vs Spring Boot in 2026, Martin Stefanko
16:00 Coffee break & snacks
16:20 AI-Infused Quarkus; how to integrate LangChain4j in your Java application, Martin Stefanko
17:00 LLM Integration & AI-Assisted Workflows: Augmenting our code and our applications with intelligence, Manfred Buchmann
17:30 Spec-Driven Development, Niklas Heidloff
18:15 Wrap-up, Dinner & Drinks, Networking

​We are looking forward to an inspiring event full of valuable content and discussions...if you have any questions, please feel free to get in touch at anytime... 🙂

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Looking for more free practitioner events? Follow the BuildersHub event calendar: https://luma.com/BuildersHub