Ga Choi
Software Engineer at NAVER Corp
South Korea
Summary
🤩
Rockstar🎓
Top SchoolGa Choi is a versatile software engineer with nine years of experience building back-end systems and embedded applications across South Korea and Europe. Currently at NAVER, he contributes to Pinpoint APM—adding core Java interceptors and metrics collection—and has impacted storage and observability by designing URL stats and optimizing Apache Pinot tables. His background at LG Electronics spans automotive embedded C/C++ development for infotainment and CAN systems, AUTOSAR, and DSP audio stacks, showing fluency from low-level hardware interfaces to cloud-native services. He brings a strong practical grounding in performance tracing, SAML-secured Spring Boot apps, and containerized deployments, plus hands-on experience migrating Google Perfetto for timeline flame graphs. A fast learner with international study at UCL and HKUST, he combines logical problem-solving with cross-cultural engineering pragmatism. Notably, he contributes to a widely used open-source APM project, reflecting both production-grade discipline and community-minded engineering.
9 years of coding experience
5 years of employment as a software developer
Hong Kong University of Science and Technology (HKUST)High school diploma, High school diploma at Korean Minjok Leadership AcademyUniversity College London
Github Skills (5)
javas10
interceptor10
performance-monitoring10
java10
apache-kafka9
Programming languages (4)
Github contributions (5)
pinpoint-apm/pinpoint
May 2020 - Jan 2023
APM, (Application Performance Management) tool for large-scale distributed systems.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 reviews, 103 commits, 248 PRs in 2 years 8 months
Contributions summary:Ga primarily contributed to the development of the Pinpoint APM tool, focusing on adding a process fork plugin and total thread count collection. The code changes included implementing Java interceptors, likely for monitoring and tracing processes, including the addition of relevant attributes. These changes involved core back-end logic additions, including collecting and processing metrics.
performance-managementmanagement-toolmonitoringapplication-performance-managementlarge-scale
ga-ram/pinpoint
May 2020 - Jun 2024
APM, (Application Performance Management) tool for large-scale distributed systems.
Contributions:17 releases, 1 PR, 264 pushes in 4 years 2 months
connection-poollarge-scale-distributedapmperformance-managementperformance-tuning
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