Sebastian Kuehnau @seb_vaadin

Vaadin.com Berlin, Germany Joined November 2018

Tweets

243
Followers

166
Following

421
Likes

636

Serhii Kulykov 🇺🇦 @serhiikulykov

2 weeks ago

10 years of building Web Components at @vaadin: celebrating the "anniversary" of <vaadin-combo-box>! Check out this blog post to learn about our journey and how we finally migrated to @buildWithLit: dev.to/webpadawan/10-…

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Catherine Edelveis @cat_edelveis

a month ago

👾CyberJAR Live: All-in on full-stack? This Wednesday, @vaadin Champion René Wilby and I discuss what full-stack really means. Expect pros and cons, challenges and growth receipts, burnout guards, and AI-era skill must-haves. Bring questions and stories! youtube.com/watch?v=tqgaOx…

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JCON @jcon_conference

a month ago

Fed up with #JavaScript bugs? Take the red pill and build full-stack web apps with just #Java! 🕶️ At #JCONUSA25, @marcushellberg will live-code apps using #OpenLiberty + #Vaadin Flow. 100% Java, no agents, no glitches. Follow the white rabbit. usa.jcon.one/register #JCON…

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Sebastian Kuehnau @seb_vaadin

2 months ago

Do you prefer reading docs in Spanish, Chinese, German or Finnish? We just added AI-supported translations for the @vaadin docs in those languages. It’s not perfect – but already surprisingly helpful. Check it out and let us know what you think: vaadin.com/docs/latest/

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vaadin @vaadin

2 months ago

Vaadin makes it easy for #Java devs to build mobile-friendly business apps. Ready to take your mobile UX even further? Check out @MattiTahvonen's 5 quick tips to help your app feel native on any device👇 bit.ly/4k61DIu

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vaadin @vaadin

3 months ago

We’re going live in 1 hour! 🎬 Get a firsthand look at Vaadin 24.8’s latest updates — including Flow, Hilla, the Design System, Copilot, Control Center, and the Modernization Toolkit. Don’t miss the live demos! 👉 Join here: bit.ly/43U0izS

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vaadin @vaadin

3 months ago

With the European Accessibility Act starting end of June, is your app ready to meet the new standards? Modernizing your Vaadin 7, 8, or 14 app now helps you: 🔹Deliver inclusive UX 🔹Avoid costly rework 🔹Reduce technical debt See how #Vaadin24 can help: bit.ly/3Ge9oOB

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vaadin @vaadin

3 months ago

"How do I draw a line between Vaadin components?" A great question from #JCON2025! @MattiTahvonen explores 3 ways to connect UI elements in #VaadinFlow including pure #Java + a handy LeaderLine wrapper. 👉 bit.ly/451rTzX

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Sven Ruppert @SvenRuppert

3 months ago

for my german reading follower.. published a post about CWE-22 CWE-377 and CWE-778 and how to harden against it. The demo is written in @vaadin Flow. javapro.io/de/erstellen-e… #vaadin #java #securecoding #cybersecurity #owasp

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JAVAPRO @JAVAPROmagazin

3 months ago

Datei-Uploads in #Java sicher machen? Schütze dich vor: - CWE-22 (Path Traversal) - CWE-377 (Temp File Risks) - CWE-778 (Insufficient Logging) Baue mit @SvenRuppert & #Vaadin sichere Datei-Apps – inkl. NIO, Logging & Security-Fokus: javapro.io/de/erstellen-e… #SecureCoding #CWE

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Joonas Lehtinen @joonaslehtinen

3 months ago

What do you think of @vaadin brand evolution? While mostly an internal resource, we decided to keep Vaadin Brand Toolkit 3.0 public at brand.vaadin.com

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Marcus Hellberg @marcushellberg

4 months ago

We have a new limited release of the highly sought after @vaadin ascii reindeer t-shirt at @spring_io! They ran out in a few hours last week at @jcon_conference, so be sure to get yours early if you want one! Run, don’t walk🏃‍♂️💨

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Sven Ruppert @SvenRuppert

4 months ago

📂 File uploads aren't harmless. In my latest #Java write-up: ✅ CWE-22 (Path Traversal) ✅ CWE-377 (Temp Files) ✅ CWE-778 (Insufficient Logging) ➡️ Secure it with Vaadin Flow. #CyberSecurity #Vaadin #SecureCoding svenruppert.com/2025/05/20/cre…

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Marcus Hellberg @marcushellberg

4 months ago

Are you going to be at @spring_io this week? Please join me and @vitalethomas for our talk on real-world AI patterns with @SpringAICentral and @vaadin right after the keynote on Thursday!