Hoyeon Lee
BPF System Engineer at SUSE
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolHoyeon Lee is a seasoned Linux-focused software engineer with 10 years of experience, currently developing eBPF/XDP features as a BPF System Engineer at SUSE. He combines deep kernel-level C expertise with cloud and DevOps experience, having built scalable Kubernetes environments and contributed to tools like uftrace to improve tracing and test infrastructure. A prolific open-source contributor, he has pushed BPF/XDP work toward mainline kernel selftests and improved uftrace’s parallel testing and TUI, reflecting a practical focus on reliability and developer experience. He co-authored a book on API gateways and translated Brendan Gregg’s Systems Performance into Korean, showing a rare mix of production systems work and technical authorship. Based in Seoul, Hoyeon brings a pragmatic systems mindset that spans firmware, cloud platforms, and low-level observability.
10 years of coding experience
4 years of employment as a software developer
학사, Electrical Engineering, 4.34, 학사, Electrical Engineering, 4.34 at 숭실대학교
English
Stackoverflow
13reputation
2kreached
1answer
3questions
Github Skills (20)
tracer10
testing10
python-multiprocessing10
multi-process10
multiprocessing10
trace10
test-automation10
debug9
debugging9
rust9
python8
cicd8
bluebird6
sequelizejs6
nodejs6
Programming languages (17)
Github contributions (5)
namhyung/uftrace
Sep 2018 - Feb 2020
Function graph tracer for C/C++/Rust/Python
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:18 commits, 23 PRs, 143 comments in 1 year 4 months
Contributions summary:Hoyeon contributed to improving the project's testing infrastructure and overall functionality. They fixed build dependencies and implemented parallel test execution using multiprocessing, increasing testing efficiency. They also addressed bugs related to socket usage in tests and corrected issues stemming from concurrent builds. Furthermore, the user refactored code related to the TUI to improve the user experience.
cpprusttracingfunction-graphtrace
DanielTimLee/uftrace
Sep 2018 - Feb 2025
Function (graph) tracer for user-space
Contributions:51 pushes, 19 branches, 1 comment in 6 years 6 months
user-spacefunction-graphtracergraph
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