Joel Sikström
Software Engineer at Oracle
Uppsala, Sweden
Summary
🤩
Rockstar🎓
Top SchoolJoel Sikström is a software engineer at Oracle focused on low-latency, highly concurrent systems as a developer on the HotSpot GC team for OpenJDK. He holds an MSc in Computer and Information Engineering from Uppsala University with top grades and completed a master’s thesis exploring free-list based dynamic storage allocators to reduce intra-page fragmentation in ZGC. With practical experience teaching core programming courses and earlier media-oriented work on per-shot video encoding at SVT, he combines strong systems research instincts with production-grade engineering. Early hands-on customer-facing roles in retail honed his reliability and operational discipline, which he now applies to high-performance JVM internals.
1 year of coding experience
Gymnasieexamen, Teknik, Gymnasieexamen, Teknik at Fyrisskolan UppsalaMaster of Science in Engineering, Computer and Information Engineering, 4.73/5.00, Master of Science in Engineering, Computer and Information Engineering, 4.73/5.00 at Uppsala universitet
Github Skills (3)
jvm10
java10
openjdk10
Programming languages (1)
Github contributions (4)
jsikstro/jdk
Jul 2024 - Apr 2025
JDK main-line development https://openjdk.org/projects/jdk
Contributions:223 pushes, 47 branches in 8 months
xmas92/jdk-sandbox
Mar 2025 - Apr 2025
Contributions:57 pushes in 22 days
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