Martijn Verburg
Principal Software Engineering Group Manager (Java, Golang, And Python) at London Java User Group
Wellington, Wellington, New Zealand
Summary
🤩
Rockstar🎓
Top SchoolMartijn Verburg is a Principal Software Engineering Group Manager at Microsoft leading Java, Golang, and Python teams, and a former co-founder and CEO of jClarity which Microsoft acquired in 2019. With 25+ years in technology he blends startup instinct with enterprise scale, advising boards and C-level executives across fintech, insurance, government and cloud SaaS. He co-founded what became Eclipse Adoptium and sits on its advisory board, contributing hands-on automation and CI/CD improvements to high-profile OpenJDK projects like Temurin. A recognised Java Champion and author of The Well-Grounded Java Developer, he pairs deep JVM performance expertise (GC log tooling, JIT analysis) with a passion for building empathetic, high-performing teams. Based in Wellington, he mentors startups and coaches executives, bringing a rare mix of product vision, community leadership and operational rigor. Outside work he’s an avid traveller who seeks out unusual places and conversations that feed his curiosity.
14 years of coding experience
19 years of employment as a software developer
BSc Computer Science, BSc Computer Science at Victoria University of Wellington
English, Dutch
Stackoverflow
3,297reputation
1.5mreached
92answers
9questions
tomcat
top-5%
java
top-5%
Github Skills (37)
github-ci10
performance-monitor10
jvm10
scripting10
groovy10
memory-management10
java10
cicd10
homebrew10
javas10
automation10
script10
performance-analysis10
build-automation10
compile10
Programming languages (30)
Github contributions (5)
adoptium/temurin-build
Sep 2018 - Dec 2022
Eclipse Temurin™ build scripts - common across all releases/versions
Role in this project:
DevOps Engineer / Automation Engineer
DevOps Engineer / Automation EngineerContributions:2 releases, 959 reviews, 158 commits in 4 years 2 months
Contributions summary:Martijn primarily contributed to the automation and build infrastructure of the Eclipse Temurin™ build scripts. Their work focused on modifying and improving build scripts, pipelines, and configuration files. Key contributions include fixing build issues, enhancing repository handling, and adding features like a release approval checkbox, indicating a focus on streamlining the release process. These changes demonstrate a strong focus on CI/CD and build automation within the Temurin project.
docker-commandscacertdocker-groupswttheia
microsoft/gctoolkit
Jul 2021 - Jan 2023
Tool for parsing GC logs
Role in this project:Back-end Developer & Performance Engineer
Back-end Developer & Performance EngineerContributions:138 reviews, 37 commits, 109 PRs in 1 year 5 months
Contributions summary:Martijn primarily focused on refactoring and updating code related to parsing Java garbage collection logs. They updated dependencies, including Vert.x, and made code changes to support unified logging schemes. Their work included renaming files, resolving merge conflicts, and adapting code for different JVM configurations. They also made minor updates to test signing configurations and sample code, demonstrating a focus on system stability and the underlying functionality of the parsing tools.
memory-managementmemorygarbage-collectionloggingparsing
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