Jiří Holuša

Jiří started as a quality engineer passionate about performance. He worked on low-latency data grids at Red Hat (Infinispan) and later Hazelcast, where he switched to the dark side of product management. The desire to dig deep into technical trenches drove him to Azul Systems, where he currently serves as Senior Product Manager of Azul Platform Prime, a performance-focused Java Virtual Machine (JVM). That enables him to spend his day looking at JIT compiler activity, reasoning about assembly, and doing exactly what he loves.

Towards an understanding of sustainable software development, written by and for the friends of OpenJDK

Standards Over Lock-In: Modernizing Java with Jakarta EE 11 on Azul Payara 7

Learn how to get your Java applications to cloud-native, AI-ready infrastructure without a costly rewrite or vendor lock-in. Join the engineers behind Azul Payara 7 on July 9.

Cut Code Review Time & Bugs in Half. Instantly.

Supercharge your team to ship faster with the most advanced AI code reviews.

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JetBrains and Azul Collaborate on Kotlin Performance in Various JVMs

Table of Contents Benchmarking Kotlin performance on Azul Platform Prime What’s next for JetBrains and Azul? JetBrains and Azul are collaborating on a shared vision of running Kotlin-generated bytecode on a high-performance Java platform to find new ways to enhance runtime performance. Benchmarks of ...

Sep 10 6,0K

Jiří Holuša

Developer Tools

Events Performance Webinar

Controlling JIT Compiler Overhead to Avoid CPU Autoscaling

Using the latest features available in Azul Platform Prime, we explore advanced methods for shaping CPU utilization.

Nov 01 5,4K

Jiří Holuša

Matt Van Order

Performance

Java DevOps

Retweet on Twitter Foojay.io Retweeted

If you want to know what I spoke about in @jcon_conference in Germany, here's an interview I did at the @foojayio podcast:

#Java #JCON #JakartaEE #AI #A2A

02:06 PM · May 04, 2026

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Our team loves to meet and talk with the Java community from around the world. If you want to learn more. You can find all OmniFish presentations at: https://speakerdeck.com/omnifish, including links to the source code of related demos. Or get in touch for a free consultation call.

10:13 AM · April 30, 2026

Retweet on Twitter Foojay.io Retweeted

Another happy customer :)
"Their expertise and flexible hands-on troubleshooting support accelerated resolution of several unexpected hurdles and ultimately got us to a successful upgrade outcome."

If you would like to discuss how we could help your company, get in touch.

09:55 AM · April 21, 2026