Magnus Bursie
Senior Java Developer at Fortnox AB
Stockholm, Sweden
Summary
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Rockstar🎓
Top SchoolMagnus Bursie is a Senior Java Developer with over 14 years building high-performance server-side systems, currently contributing to Fortnox’s core platform after a long tenure at Oracle working on OpenJDK build infrastructure. He began his career as a core developer on the JRockit JVM, gaining deep expertise in performance, low-level algorithms and hardware-specific tuning. At Oracle he improved Java build systems and JIT-related code, focusing on developer tooling and cross-platform build efficiency for OpenJDK. A pragmatic generalist, Magnus excels at stepping into unfamiliar, technically challenging domains and delivering robust tooling and performance improvements. He pairs strong engineering chops in C, Java and systems administration with formal training in HCI and a BA in philosophy, giving him a keen interest in how people interact with technology. Outside work he maintains hobby projects on GitHub while contributing to widely used projects like OpenJDK.
14 years of coding experience
24 years of employment as a software developer
M.Sc., Computer Science, M.Sc., Computer Science at KTH Royal Institute of TechnologyB.A., Philosophy, B.A., Philosophy at Stockholm University
Swedish, English, German
Stackoverflow
131reputation
19kreached
2answers
0questions
Github Skills (13)
javas10
build-system10
java10
clangd9
gcc9
clang9
code-optimization8
javadoc8
cprogramming-language7
testing7
c-language7
command-line-arguments6
visual-studio-code6
Programming languages (25)
Github contributions (5)
openjdk/jdk
Dec 2022 - Dec 2022
JDK main-line development https://openjdk.org/projects/jdk
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1378 reviews, 4 commits, 321 PRs in 1 day
Contributions summary:Magnus's contributions primarily involved modifying Java code related to the OpenJDK, specifically focusing on build system improvements and bug fixes. This included removing obsolete variables, fixing typos, and addressing issues related to the compilation process and integration with the Javadoc tool. The user also worked on improving the handling of code related to the JIT (Just-In-Time) compiler, specifically improving its efficiency and correctness. The user’s contributions are primarily focused on improving the build process and efficiency of OpenJDK.
openjdkjavajvmjdk
magicus/phoneME
Nov 2021 - Nov 2021
The archived source code of the old Sun phoneME project, converted to git
Contributions:2 reviews, 27 commits, 3 PRs in 1 day
phonemearchivedjavame
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