Sign in

Lutz Hühnken

@huehnken.de
402 followers 253 following 153 posts

Fractional engineering leader and software architect. 20+ years in distributed systems & messaging. Helping organizations build scalable, resilient systems and highly effective engineering teams.

PostsRepliesMedia
Lutz Hühnken @huehnken.de · 26/09/2026
Feedback is hard. Especially giving it (receiving it can be, too). There's no lack of articles and guides on this, so your feedback fatigue might expand to even reading about it. But I find this a good, comprehensive overview. martinfowler.com/articles/hea... #Feedback #EngineeringManagement
martinfowler.com
Healthy Feedback
A guide to exchanging criticism or praise in teams
000
Reposted by Lutz Hühnken
JavaForumNord @javaforumnord.bsky.social · 03/09/2026
Lutz Hühnken @huehnken.de - Das Kafka-Ökosystem 2026 Auf dem Java Forum Nord 2026: javaforumnord.de/2026/
122
Lutz Hühnken @huehnken.de · 03/09/2026
EDA gets recommended for microservices. Then a real business process turns up, and inventory, payment and shipping all have to move together. The usual reach is a workflow engine or the Saga pattern: one coordinator sends commands and waits for replies.
Banner ad for code.talks conference
110
Reposted by Lutz Hühnken
W-JAX | Community & Konferenzen @jaxkonferenz.bsky.social · 28/08/2026
⚡ Event-driven heißt nicht automatisch resilient. @huehnken.de zeigt auf der W-JAX bewährte #EDA-Patterns, typische Antipatterns und konkrete Dos & Don’ts für robuste, wartbare Systeme. 📍München | 📅 Mittwoch, 4.11. | ⌚ 10:15 Uhr 🔗 f.mtr.cool/bgvd8pxlws #SoftwareArchitecture #jaxcon
021
Lutz Hühnken @huehnken.de · 18/08/2026
Nur zur Erinnerung: Den 10% Early Bird Rabatt gibt es nur bis 90 Tage vor der Schulung. Der nächste Termin ist 26./27.11.2026, also um zu sparen - bis Freitag 28.8. buchen - den Code "EARLY_BIRD" angeben.
000
Lutz Hühnken @huehnken.de · 14/08/2026
If you're still on Twitter, please like/retweet this: x.com/WeAreDevs/st...
x.com
WeAreDevelopers (@WeAreDevs) on X
Lutz Hühnken says that it can be irritating hearing developers refer to event-driven microservices simply because they use Kafka, when it's a little more nuanced than that. What annoys you in the wor...
000
Lutz Hühnken @huehnken.de · 13/08/2026
Added to my Awesome EDA list: Kim Clark on "The Resurgence of Event Driven Architecture". Good historical context, and clear that async transport gives you no decoupling if used for request/response. codeberg.org/lutzh/awesom... #EDA #SoftwareArchitecture
codeberg.org
awesome-event-driven-architecture
A curated list of resources on event-driven architecture.
000
Lutz Hühnken @huehnken.de · 05/08/2026
(🇩🇪) Ein bisschen Feedback zu meinem EDA-Training. Weil positives Feedback motiviert und weil ich ein bisschen Werbung machen will 🙂 Nächster Termin: 26./27.11. in Hamburg. Thread 🧵👇
100
Lutz Hühnken @huehnken.de · 30/07/2026
For my 2-day Event-Driven Architecture training I'm now partnering with training provider oose. So I can now offer public trainings that individual devs & architects can join. In person, in Hamburg, Germany. www.oose.de/seminar/even... #eda #eventdrivenarchitecture #training #softwarearchitecture
oose.de
Event-Driven Architecture
Entwirf eventgetriebene Systeme mit Sicherheit. Lerne Architektur, Event Design und bewährte Muster in einem praxisnahen Training.
020
Lutz Hühnken @huehnken.de · 23/07/2026
(🇩🇪) Meine Artikelserie zu Event-Driven Architecture aus dem Java Magazin gibt es jetzt zum Download in einem Stück: 👉 software-architecture-summit.de/downloads/wh... Wenn ihr es lest, lasst mich wissen, wie ihr es findet / was ihr darüber denkt! #eda #eventdrivenarchitecture #softwarearchitecture
software-architecture-summit.de
Event-driven Architecture in Action – Whitepaper kostenlos herunterladen
Lose Kopplung, resiliente Systeme, kein verteilter Monolith. Dieses Whitepaper zeigt, wie Event-driven Architecture in der Praxis funktioniert – von Kafka bis Schema-Evolution. Jetzt kostenlos herunte...
000
Reposted by Lutz Hühnken
Software Architecture Summit @softwarearchsummit.bsky.social · 23/07/2026
Kafka allein macht keine Event-driven Architecture. Warum lose Kopplung mit Architektur beginnt & nicht mit einem Message Broker, erfährst du im kostenlosen Whitepaper. 📥Kostenlos herunterladen. software-architecture-summit.de/dow…
011
Lutz Hühnken @huehnken.de · 16/07/2026
New talk: the Kafka ecosystem in 2026. Drop-in alternatives speaking the Kafka protocol (Redpanda, WarpStream, AutoMQ, Bufstream), what diskless architectures actually change, smarter clients, proxies and gateways, plus KIP-932 and KIP-1150. Kafka is a protocol now, not just a broker. #kafka #eda
Banner ad promoting a talk about Kafka at Java Forum Nord 2026 in Hannover.
100
Lutz Hühnken @huehnken.de · 10/07/2026
It's wrap (for me, anyway) for the @wearedevelopers.bsky.social European Congress this year. The congress is not like other conferences I go to. It's bigger, noisier. Great crowd (massive amount of people, > 10000 or so), young, international, energetic.
Berlin Messe
200
Reposted by Lutz Hühnken
W-JAX | Community & Konferenzen @jaxkonferenz.bsky.social · 07/07/2026
⚡ Event-driven Architecture in der Praxis: Was funktioniert – und was tut später weh? @huehnken.de zeigt auf der W-JAX Patterns & Antipatterns für resiliente, wartbare EDA-Systeme. 📅 04.11. | ⌚ 10:15 🔗 f.mtr.cool/xvdsdhhslb #jaxcon
011
Lutz Hühnken @huehnken.de · 01/07/2026
I‘ll be at the WeAreDevelopers World Congress in Berlin next week. Happy to discuss building and evolving engineering organizations, strategic technology leadership, or event-driven architecture. If you’re also there and want to meet up, DM me. #eda #eventdrivenarchitecture #ddd #teamtopologies
The wearedevelopers conference is held from July 8 - 10 in Berlin, Germany
010
Lutz Hühnken @huehnken.de · 24/06/2026
Hectic, a bit chaotic, a lot of intelligible questions and discussion. Not great to watch as a recording. But still, if you weren't there, you missed out. A great vibe in the room, good fun. My talk on "Four Programming Languages": tinyurl.com/j5z2my44 #programminglanguages #programming #bobkonf
youtube.com
Four Fascinating Programming Languages You've Probably Never Heard Of - Lutz Hühnken
YouTube video by BOBKonf
141
Lutz Hühnken @huehnken.de · 17/06/2026
Some seats are still available for my workshop 👨‍🏫 on Event-Driven Architecture at the WeAreDevelopers world congress in Berlin on July 8. I try to make it fun & interesting, so please tell your friends. 👉 www.wearedevelopers.com/world-congre... #eda #eventdrivenarchitecture #softwarearchitecture
screenshot of a tile advertising a workshop on event-driven architecture
000
Lutz Hühnken @huehnken.de · 12/06/2026
Farewell Antwerp. Had amazing three days. Surrounded by so many brilliant minds, it felt almost surreal. Thanks @dddeu.bsky.social for a great conference! #DDDEU
Wise wordsMexican standoffs (with photos, not guns)Evans and Fowler, legends.Michael Feathers
021
Reposted by Lutz Hühnken
BOB Konferenz @bobkonf.de · 12/06/2026
Video of @huehnken.de's #BOBkonf2026 talk "Four Fascinating Programming Languages You've Probably Never Heard Of" is now up on our website! bobkonf.de/2026/huehnke...
bobkonf.de
BOB - Four Fascinating Programming Languages You've Probably Never Heard Of
BOB Konferenz, Best of Breed Konferenz für Software-Entwickler und Entscheider in der Softwareentwicklung.
053
Lutz Hühnken @huehnken.de · 10/06/2026
10th edition of @dddeu.bsky.social being kicked off by Eric Evans. #DDDEU
Eric Evans
001
Lutz Hühnken @huehnken.de · 18/05/2026
Not so sure about this publication, but the story that most of US finance uses some sort of Event-Driven Architecture or Event Sourcing makes sense to me. It's a short read, check it out 👉 techbullion.com/event-driven... #eda #eventdrivenarchitecture
techbullion.com
Event-Driven Architecture in US Finance: How an Append-Only Log Quietly Became the System of Record
The reconciliation team at a US neobank used to spend three of every five business days chasing a single class of bug. A user would tap a card, the authorisation would post, and somewhere between the ...
040
Lutz Hühnken @huehnken.de · 12/05/2026
On DDD Europe I'm going to speak about EDA Patterns and Antipatterns. Come and see if you recognize patterns from your code base. If you don't have a ticket yet, use this link for a discount: ti.to/on3/aardling... #eda #eventdrivenarchitecture #softwarearchitecture #conference #dddeurope
Banner ad for Lutz' talk on DDD Europe
020
Lutz Hühnken @huehnken.de · 08/05/2026
Read the latest addition to the "Awesome Event-Driven Architecture" list: Michelin's journey from BPM orchestration to event-driven choreography. 👉 blogit.michelin.io/choregraphy-... #eventdrivenarchitecture #eda #softwarearchitecture
blogit.michelin.io
Moving from orchestration to choregraphy - Part 1
Over the last decade, Michelin went from a big mainframe monolith to a choreography of micro services streaming business events to support its core business processes: the distribution of tires from o...
140
Lutz Hühnken @huehnken.de · 30/04/2026
TIL Tangled wants to offer a fediverse approach for code collaboration. blog.tangled.org/federation/ is a good read. My favorite Github alternative so far is codeberg.org, run by a non-profit. (Github's great, but open source shouldn't depend on a single company to this degree). #git #fediverse
blog.tangled.org
we need a federation of forges
git is decentralized, but what of the rest?
030
Lutz Hühnken @huehnken.de · 28/04/2026
If Claude Code no longer offers Opus 4.6 in the model selection, but you'd like to use it, for now you can still get it back via config or command line parameter, as in e.g. $ claude --model 'claude-opus-4-6[1m]' Source 👉 ai.georgeliu.com/p/regain-acc... #claudecode #ai
ai.georgeliu.com
Regain Access To Claude Opus 4.6 And Opus 4.5 In Claude Code CLI
Stuck with Opus 4.7 in Claude Code? Get back Opus 4.6 or Opus 4.5 access via /model section
130
Lutz Hühnken @huehnken.de · 28/04/2026
Great way of explaining event sourcing: www.youtube.com/watch?v=xPmQ... Fun fact, when I had to come up with an analogy to explain event sourcing about ten years ago in a talk, I also chose football ⚽. #eventsourcing #softwarearchitecture
youtube.com
Event Sourcing Explained using Football
YouTube video by Metaphorically Speaking
011
Lutz Hühnken @huehnken.de · 17/04/2026
I want to up my sandbox game 🛠️ and now I'm wondering what everyone is using. #ai #agents #claude
110
Lutz Hühnken @huehnken.de · 17/04/2026
I was recently interviewed for WeAreDevelopers. If the AI summary on the page is correct, I'm quite happy with what I said 😃. It's mostly about event-driven microservices. Check it out: 👉 www.wearedevelopers.com/en/videos/18... #eda #eventdrivenarchitecture #softwarearchitecture #podcast
wearedevelopers.com
Lutz Heunkhen - Event-Driven Microservices: Patterns and Practices - Lutz Heunkhen
Are your microservices just a fragile, distributed monolith? Learn how event-driven patterns create true resilience and decoupling.
000
Lutz Hühnken @huehnken.de · 16/04/2026
If you think about coming to my class www.wearedevelopers.com/world-congre... with the discount code "WWC26_BUILD" you get the full-day workshop and the conference ticket for < 600 € altogether (only until April 17th) See you in Berlin! #eventdrivenarchitecture #eda #berlin #wearedevelopers
wearedevelopers.com
Event-Driven Microservices: Patterns and Practices for Production-Ready Systems Masterclass at World Congress 2026
000
Lutz Hühnken @huehnken.de · 16/04/2026
If you think about coming to my class www.wearedevelopers.com/world-congre... with the discount code "WWC26_BUILD" you get the full-day workshop and the conference ticket for < 600,-€ altogether (until April 17th) See you in Berlin! #eventdrivenarchitecture #eda #berlin #wearedevelopers
wearedevelopers.com
Event-Driven Microservices: Patterns and Practices for Production-Ready Systems Masterclass at World Congress 2026
000
Lutz Hühnken @huehnken.de · 07/04/2026
Part of my onboarding at Typesafe (a.k.a. Lightbend, a.k.a. Akka) was a training with Martin Thompson. I loved it! It's great to see that his thinking in terms of "Mechanical Sympathy" is still being rediscovered and popularized. 👉 martinfowler.com/articles/mec... #mechanicalsympathy #programming
martinfowler.com
Principles of Mechanical Sympathy
Principles of mechanical sympathy for creating performant software: Memory access patterns, false sharing, the single-writer principle, and natural batching.
000
Reposted by Lutz Hühnken
iSAQB® - International Software Architecture Qualification Board @isaqb.bsky.social · 30/03/2026
🐦️ 𝗕𝗶𝘀 𝗱𝗶𝗲𝘀𝗲𝗻 𝗗𝗼𝗻𝗻𝗲𝗿𝘀𝘁𝗮𝗴 𝗧𝗶𝗰𝗸𝗲𝘁 𝘀𝗶𝗰𝗵𝗲𝗿𝗻 & 𝟭𝟬𝟬 € 𝘀𝗽𝗮𝗿𝗲𝗻!🥳 • 16.–17. Juni 2026 im Holiday Inn München-Unterhaching • Themen u.a.: #DDD #API #KI #Cloud #EmbeddedSystems 𝗪𝗮𝗿𝘂𝗺 𝘁𝗲𝗶𝗹𝗻𝗲𝗵𝗺𝗲𝗻? ✔ 23 #iSAQB Expert:innen ✔ 23 Sessions auf Deutsch ✔ Networking & Get-together Jetzt anmelden 👉️ t1p.de/4s17l
Speaker des Software Architecture Forum 2026Speaker des Software Architecture Forum 2026
084
Lutz Hühnken @huehnken.de · 01/04/2026
New addition to my Awesome EDA list: "Event-Driven Patterns for Cloud-Native Banking" by Chris Tacey-Green. EDA in banking: outbox pattern, event contracts, event ordering, and the org cost of adoption. www.infoq.com/articles/eve... #eventdrivenarchitecture #eda #softwarearchitecture
infoq.com
Event-Driven Patterns for Cloud-Native Banking: Lessons from What Works and What Hurts
Event-driven architecture helps banks decouple systems, scale services, and create clear activity trails. But it also introduces complexity, new failure modes, and operational challenges. Chris Tacey-...
111
Lutz Hühnken @huehnken.de · 31/03/2026
New version 0.19 of Ollama leverages Apple's MLX framework, ~doubles the tokens/sec for optimized models. Tried it on an M4 Max 👍. It's no Opus, but a nice local alternative that you can play around with without tapping into your token budget. 👉 ollama.com/blog/mlx #claude #ollama #ai #localai
ollama.com
Ollama is now powered by MLX on Apple Silicon in preview · Ollama Blog
Today, we're previewing the fastest way to run Ollama on Apple silicon, powered by MLX, Apple's machine learning framework.
130
Lutz Hühnken @huehnken.de · 26/03/2026
Event-driven architecture is everywhere, but getting it right is still hard. In the next months I'll be speaking about EDA patterns and practices at 3 European conferences: JAX Mainz (May), DDD Europe in Antwerp (June), and a full-day masterclass at WeAreDevelopers in Berlin (July). Let's meet!
010
Reposted by Lutz Hühnken
Mike Sperber @sperbsen.bsky.social · 23/03/2026
I'm putting together a Pecha Kucha session for code.talks - get funky and talk about anything you want to the tune of 20 slides of 20 seconds each! It's a little hidden in the CfP - put "Undefined" for track and “Pecha Kucha" for Format. cfp.codetalks.com/call-for-pap...
cfp.codetalks.com
code.talks Tech Conference 2025 | Network & Learn in Hamburg November 5 & 6 2025
Join other developers and CTOs at the leading tech event which is a fixture in the DACH tech scene. Network, learn, and have fun at this tech event. It is more than a developer conference, it is a com...
022
Lutz Hühnken @huehnken.de · 17/03/2026
Enjoying @gunnarmorling.dev talking about the Transactional Outbox pattern at @jug-hamburg.bsky.social .
Gunnar Morling
010
Lutz Hühnken @huehnken.de · 13/03/2026
I had a packed room with a great, curious audience today. Really good vibes, thanks to everyone who attended. And thanks to @bobkonf.bsky.social of course for inviting me to speak! #bobkonf
Selfie in front of audience
030
Lutz Hühnken @huehnken.de · 12/03/2026
While I pack my bag to go to @bobkonf.bsky.social tomorrow, to give a talk on innovation in different programming languages, I can reveal that the companion website www.programminglanguages.eu will not be ready by the time of the talk 💣. I'm aiming for Easter 🐰🥚.
programminglanguages.eu
Programming Languages Nerds Get Excited By
010
Reposted by Lutz Hühnken
Software Architecture Summit @softwarearchsummit.bsky.social · 10/03/2026
Tag 2 – Los geht’s! 🚀 Keynote in Englisch von Ghizane Aroussi & Krisztina Hirth: Becoming a DDD Company - One Story, Two Lenses.💡 Danach Deep Dives mit @stefanzoerner.bsky.social  & Alexander Kaserbacher, Henning Schwenter & @huehnken.de . ☕😅
021
Reposted by Lutz Hühnken
Software Architecture Summit @softwarearchsummit.bsky.social · 05/03/2026
Event-Driven Architecture in Java - ein praxisorientierter Deep Dive, Workshop mit Profi @huehnken.de auf dem Software Architektur Summit vom 9. - 13. März 2026 München. 👉
software-architecture-summit.de
Event-Driven Architecture in Java - ein praxisorientierter Deep Dive - Software Architecture Summit
011
Lutz Hühnken @huehnken.de · 05/03/2026
Nice of Forbes to pitch EDA to "business leaders." "The shift [..] to event-driven execution is a leadership decision about how an organization operates under scale, complexity and regulatory pressure." If you're a business leader pondering that decision, I'm happy to help. tinyurl.com/mv9tae32
forbes.com
Architecting Event-Driven Enterprise Transaction Systems At Million Scale
Event-driven architectures offer a strategic path to real-time execution, resilience and operational transparency across modern enterprises.
000
Lutz Hühnken @huehnken.de · 05/03/2026
I'm captivated by this question: How can we protect open source copyright if AI can rewrite? What will it mean for open source software if we can't? tuananh.net/2026/03/05/r... #opensource #oss #foss #gpl #ai
tuananh.net
Relicensing with AI-assisted rewrite
Exploring the chardet v7.0.0 controversy: Can an AI rewrite legally 'launder' a library from LGPL to MIT?
120
Lutz Hühnken @huehnken.de · 04/03/2026
Java Magazin 4.2026: Part 1 of my four-part EDA series is out. Written companion to my workshop, which I'm delivering again in Munich next week. Read it (German): entwickler.de/software-arc... #eda #eventdrivenarchitecture #softwarearchitecture
A picture of an article about Event-Driven Architecture in Java Magazin
110
Lutz Hühnken @huehnken.de · 27/02/2026
Trying Wispr Flow after friends raved about how good voice-to-text has become. But I have to stop recording to get it to type? Is continuous dictation possible? Or is there another LLM-based tool that does this? #VoiceToText #AI #Dictation
000
Reposted by Lutz Hühnken
Domain-Driven Design Europe @dddeu.bsky.social · 25/02/2026
⏰ Just 3 days left before Early Bird Tickets disappear! Domain-Driven Design Europe 2026 promises to be our best conference yet. Your early purchase helps us confirm final arrangements while saving you money. Secure your place before prices increase: buff.ly/J6TUj57
011
Lutz Hühnken @huehnken.de · 18/02/2026
Two upcoming events: • @dddeu.bsky.social (Antwerp) Patterns and Antipatterns in Event-Driven Architecture 2026.dddeurope.com/program/patt... #EventDrivenArchitecture #DDD #SoftwareArchitecture
2026.dddeurope.com
DDD Europe 2026 - Program
110
Lutz Hühnken @huehnken.de · 15/02/2026
Five books that shaped how I think about software development. www.huehnken.de/resources/bo... #bvssh #continuousdelivery #accelerate #teamtopologies #lean
huehnken.de
Formative Books - Lutz Hühnken Consulting
Books that shaped how I approach software development - a short list of formative reads
000
Lutz Hühnken @huehnken.de · 12/02/2026
Tomorrow is the last day of this year's OOP conference. Enjoying it very much so far. Many conversations around AI of course, but grounded and thoughtful ones, beyond the hype. And many familiar faces. If you're here, join me tomorrow at 10am 👉 www.oop-konferenz.de/de/programm/... #oop
Picture taken at OOP talkPicture taken at OOP talkPicture taken at OOP talkPicture taken at OOP talk
010
Lutz Hühnken @huehnken.de · 04/02/2026
New: 2-day hands-on Event-Driven Architecture training. Looking for a first company to test it with - you get it for free, I get feedback. In-person, on-site, 6-10 people. Details: huehnken.de/training.html #EventDrivenArchitecture #Kafka #SoftwareArchitecture
huehnken.de
Event-Driven Architecture Training - Lutz Hühnken Consulting
A hands-on 2-day in-person course for software teams
120