Angelo Rubini

Software Develop Engineer Sr Specialist - Jakarta EE Community Enthusiast Member

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Step up your coding with the Continuous Feedback Udemy Course: Additional coupons are available

What do you know about the code changes that were just introduced into the codebase? When will you notice if something goes wrong?

Stable, Secure, and Affordable Java

Azul Platform Core is the #1 Oracle Java alternative, offering OpenJDK support for more versions (including Java 6 & 7) and more configurations for the greatest business value and lowest TCO.

Jakarta EE 11: Beyond the Era of Java EE

This user guide provides a brief history of Java EE/Jakarta EE and a detailed overview of some of the specifications that will be updated in Jakarta EE 11.

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AWS Nitro and CPU Graviton Meets Unikernels

Table of Contents From Virtual Machines and Containers to UnikernelsProof of Concept OverviewReproducibility and ArtifactsLocal Build and Image CreationInstance Creation on AWSPoC EnvironmentArchitectural Diagram of the PoCContainers vs Unikernels: A Stack ComparisonContainer StackUnikernel StackQuarkus, Semeru, and Nanos on AWS Nitro ...

Apr 10 428

Angelo Rubini

Arm

Cloud DevOps FinOps Jakarta EE Java Microservices Performance

Unikernel: Profiling and Troubleshooting JVM on Nanos Unikernel

Table of Contents Profiling a Java Application Running Inside an Unikernel with JProfilerExplanationDirsArgsRunConfigBaseVolumeSzWhat this command doesInstrumentation PhaseFinal State Profiling a Java Application Running Inside an Unikernel with JProfiler Unikernels are often associated with minimalism and tight resource control. But can …

Feb 11 1,3K

Angelo Rubini

DevOps

Tutorials Tools Profiler Performance Observability Java Core Java Jakarta EE Developer Tools Debugging Cloud

Java and Jakarta EE and the Evolution of the Cloud with Nanos Unikernel

Table of Contents Why Nanos UnikernelWhat Changes Compared to KubernetesNanos Images = Cloud-Native Immutable ImagesCI/CD: GitHub Actions for Building Azul 25 + Payara 7 on Nanos ImagesScaling: The Hypervisor Does Kubernetes’ JobApplication Upgrades: Rolling Just Like KubernetesSecurity: Stronger Isolation than …

Jan 06 3,2K

Angelo Rubini

Java

Performance Microservices Jakarta EE DevOps Cloud

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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

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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