Bert Jan Schrijver's Avatar

Bert Jan Schrijver

@bjschrijver.dev

CTO @OpenValue.eu, JUG leader @NLJUG.bsky.social. J-Fall/Spring organizer, @JavaChampions.bsky.social, @iSAQB.bsky.social, JavaOne rock star speaker, Duke’s choice award winner, Java/architecture/CD/DevOps.

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05.07.2023
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Latest posts by Bert Jan Schrijver @bjschrijver.dev

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Today we're hosting another @isaqb.bsky.social Software Architecture Community NL meetup at the @openvalue.eu Utrecht office, with two talks about the intersection between software architecture and AI.

Interested? Join the community at www.meetup.com/isaqb-nl/ !

05.03.2026 17:43 👍 3 🔁 2 💬 0 📌 0

thanks for sharing!

02.03.2026 12:36 👍 0 🔁 0 💬 0 📌 0
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Vision on AI Impact in Software Development — Part 1: Bert Jan Schrijver | OpenValue | Blog Vision on AI Impact in Software Development — Part 1: Bert Jan Schrijver | OpenValue | Blog

Here's a great blog article from someone actually in the field, @bjschrijver.dev , also provides a very nuanced view of the junior-to-senior pipeline.

openvalue.blog/posts/2026/0...

17.02.2026 07:50 👍 3 🔁 1 💬 3 📌 0

😂 beautiful.
I had something similar while traveling from NL to the US. Someone wanted to plan a meeting with me at 9:30. I proposed 10:30. Was slightly annoyed when I got an invite for 9:30. Asked why it wasn't at 10:30. Organizer said it was. Turned out I was flying over the UK in a -1 timezone 😅

10.10.2025 16:06 👍 0 🔁 0 💬 0 📌 0
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Devoxx Belgium 2025 - Making significant Software Architecture decisions Making significant Software Architecture decisions - presented at Devoxx Belgium 2025. - Download as a PDF or view online for free

Just presented "Making significant Software Architecture decisions" at @devoxx.com Belgium.
Thanks everyone for joining!

Slide deck:
www.slideshare.net/slideshow/de...

08.10.2025 13:42 👍 9 🔁 2 💬 0 📌 0
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Go serverless with Quarkus, GraalVM Native Image and AWS Lambda with @bjschrijver.dev!

The talk will cover the migration process, development, deployment, and cost considerations, with a demo to help attendees get started themselves:

m.devoxx.com/events/dvbe2...

24.09.2025 14:17 👍 2 🔁 1 💬 1 📌 0
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Every developer starts by learning. The real growth happens when you start sharing. 🚀

At #dev2next, @bjschrijver.dev's keynote showed how this simple cycle transformed his career — and how it can transform yours too.

📸 Photos from the session below!

01.10.2025 17:30 👍 4 🔁 3 💬 0 📌 0
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J-Fall 2025: Call for Speakers THE BIGGEST JAVA CONFERENCE OF THE NETHERLANDS November 6, 2025 | Pathé Ede, The Netherlands J-Fall is organized by and for the NLJUG and is free fo...

The J-Fall 2025 call for papers is open for one more week and will close on September 1st, end of day. Please share your proposal(s) via sessionize.com/jfall25!

22.08.2025 12:19 👍 4 🔁 0 💬 0 📌 0
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I'll be back on stage at @devoxx.com in Antwerp in October to present three sessions: a talk about software architecture, a serverless deep dive and a speaker coaching session. Hope to see you here!

22.08.2025 09:55 👍 12 🔁 0 💬 1 📌 0

Ah, yes, that tweet has been in this slide deck for a while! Sound advice from @gunnarmorling.dev, as usual 😉

26.07.2025 11:09 👍 2 🔁 0 💬 0 📌 0

Wheels down BCN for @devbcn.bsky.social!

05.07.2025 12:49 👍 4 🔁 0 💬 0 📌 0
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Should you build for reuse or solve just the problem at hand? Learn how to balance generic vs specific design with real-world insights & practical strategies with @bjschrijver.dev at dev2next!💥

www.dev2next.com/speaker/9391...

🎟️ dev2next.com
🙌 JOIN-BERT-JANS-50OFF = discount

30.06.2025 17:01 👍 4 🔁 1 💬 0 📌 0
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GitHub - bertjan/quarkus-langchain-ollama-mcp-example: Example MCP client and server with Quarkus, Langchain4j and Ollama. Example MCP client and server with Quarkus, Langchain4j and Ollama. - bertjan/quarkus-langchain-ollama-mcp-example

Played around a bit with MCP integration with @quarkus.io, @langchain4j.dev and Ollama during the yearly hackathon with the @openvalue.eu Utrecht team.

Built a small example setup with 2 @quarkus.io apps - an MCP client that connects to an MCP server over HTTP:
github.com/bertjan/quar...

22.06.2025 11:26 👍 11 🔁 3 💬 0 📌 0
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🏗️ Software Architecture Meetup "Decision making in practice" - June 12, Utrecht. OpenValue sponsors the iSAQB NL's architecture meetup! 2 talks on decision-making & ADRs by our experts @bjschrijver.dev & @pietvandongen.com
Free food, drinks & networking!
RSVP: www.meetup.com/isaqb-nl/eve...

26.05.2025 11:10 👍 3 🔁 2 💬 0 📌 0
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Software architecture decision making in practice, Thu, Jun 12, 2025, 5:30 PM | Meetup Hello architecture enthusiasts! We're excited to announce our next meetup focused on **software architecture decision making in practice**! Join us for an engaging evening

I'm speaking at the @isaqb.bsky.social Software Architecture Community NL meetup in Utrecht on June 12th where I'll talk about making significant software architecture decisions.

If you're into software architecture, don't miss this event!
www.meetup.com/isaqb-nl/eve...

23.05.2025 06:42 👍 5 🔁 0 💬 0 📌 0
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Today I had great time at #JCON2025 presenting 'How I Solved Production Issues with OpenTelemetry (And How You Can Too)".
The @jcon.one conference is really cool to join and talk with fellow developers and share thoughts.

Missed the talk? Check the slides, code and more goto.ceesbos.nl/jcon2025

13.05.2025 15:50 👍 8 🔁 1 💬 1 📌 0
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Today I am preparing for #JCON
Within two weeks I will be presenting how #OpenTelemetry can help you with your observability challenges. I am looking forward to the conference!

@jcon.one

01.05.2025 10:45 👍 8 🔁 2 💬 0 📌 0
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Making significant software architecture decisions Making significant software architecture decisions - Download as a PDF or view online for free

Slide deck for my talk "Making significant software architecture decisions" at the NLKUG meetup tonight:

09.04.2025 17:11 👍 3 🔁 0 💬 0 📌 0
OpenValue NeuroCoder 2025 - The World's First Brain-Training Headband for Instant Java Mastery
OpenValue NeuroCoder 2025 - The World's First Brain-Training Headband for Instant Java Mastery OpenValue, recognized thought leaders in the Java ecosystem, proudly announces a groundbreaking advancement in developer education technology: NeuroCoder™ - ...

🧠 Introducing OpenValue's NeuroCoder™! Our revolutionary headband transfers Java expertise directly to your brain in 15 minutes! Watch our video to see how you'll master 37+ frameworks instantly. Side effect: speaking in lambda expressions 😉 youtu.be/P27UaXkK3s4

01.04.2025 05:02 👍 9 🔁 4 💬 1 📌 1

Enjoy!

30.03.2025 09:41 👍 1 🔁 0 💬 0 📌 0
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Meetup time in our Utrecht office!
First up: Artem Makarov talking about reverse engineering

19.03.2025 17:36 👍 2 🔁 3 💬 0 📌 0

Likewise!

18.03.2025 20:18 👍 2 🔁 0 💬 0 📌 0

Looks good!

09.03.2025 17:41 👍 1 🔁 0 💬 1 📌 0

Broken pixels? I’ve never seen that green color on a DB screen before

18.02.2025 19:31 👍 5 🔁 0 💬 1 📌 0
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Happy Valentine's Day ❤️ They say true love is written in the stars, but at OpenValue, we write it in code. A special Valentine's message that combines our greatest passions: elegant code and the @Java ecosystem. #Java #Love #ValentinesDay

14.02.2025 07:16 👍 6 🔁 4 💬 0 📌 0
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@rustam.no look what I found in the @openvalue.eu Munich office 😉

06.02.2025 15:24 👍 5 🔁 1 💬 1 📌 0

yes, the train definitely beats a plane in that aspect 😉

06.02.2025 13:25 👍 1 🔁 0 💬 0 📌 0

so far, so good 😅

06.02.2025 13:25 👍 1 🔁 0 💬 0 📌 0
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On my way to Munich for a day with the @iSAQB.bsky.social foundation workgroup and a visit to the @OpenValue.eu Munich team!
Less than 6.5 hours with a direct train from Utrecht - not bad!

06.02.2025 10:22 👍 13 🔁 0 💬 2 📌 0
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Trash Talk - Exploring JVM memory management & Back to basics: Strings in Java, Thu, Feb 20, 2025, 6:00 PM | Meetup Dear Java Community, after the Meetup is before the Meetup! So I am happy to announce our next **OpenValue Meetup** on 20th of February! Again we were able to organize t

Looking forward to speak at #OpenValue in #Düsseldorf again…if you are interested, feel free to join and sign up here: Trash Talk - Exploring JVM memory management & Back to basics: Strings in Java meetu.ps/e/NR42R/LYZK...
#Java #Community

04.02.2025 18:19 👍 6 🔁 2 💬 0 📌 0