Sangboak Lee
Software Engineer
Coquitlam, British Columbia, Canada
Summary
👤
Senior🎓
Top SchoolSangboak Lee is a seasoned software engineer with a decade of experience building scalable, high-availability web services and ad platforms using Kotlin, Spring, React, Ruby on Rails, and GraphQL. At Woowa Bros. he architected and operated an ad delivery system that generates roughly $1M/month, achieving 99.97% availability and a 700% improvement in ad reporting performance. Comfortable across backend distributed systems—Kafka, Redis, MongoDB—and AWS, he focuses on reliability, performance tuning, and test-driven development. An active open-source contributor, he has improved core tooling in notable projects like Facebook's Prepack and enhanced server-side features in Line’s Armeria framework. With a background spanning French literature to postgraduate IT studies, he brings both analytical depth and a keen, cross-disciplinary perspective to problem solving.
10 years of coding experience
Hack ReactorPostgraduate Degree Information Technology, Postgraduate Degree Information Technology at Douglas CollegeBachelor's degree french literature, Bachelor's degree french literature at Sungkyunkwan University
Korean, English
Stackoverflow
1reputation
0reached
0answers
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Github Skills (17)
javascript10
command-line-interface10
http10
microservices-application10
java10
javas10
rpc10
command-line10
microservices10
grpc10
optimization10
cli10
testing9
netty9
babeljs8
Programming languages (6)
Github contributions (5)
line/armeria
Mar 2023 - Jul 2023
Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:36 reviews, 6 PRs, 58 comments in 4 months
Contributions summary:Sangboak contributed several features to the Armeria framework, focusing on improving the server-side capabilities. They added the ability to configure a request ID generator on a per-service basis, providing greater flexibility in managing request identifiers. The user also implemented getters for missing virtual host properties and enhanced the framework's metric capabilities by allowing for distribution config customization. These changes demonstrate a focus on improving Armeria's core functionalities and usability.
rpcmicro-frameworkretrofitprotobuftype-of
facebookarchive/prepack
Jul 2017 - Aug 2017
A JavaScript bundle optimizer.
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 5 PRs, 15 comments in 1 month
Contributions summary:Sangboak primarily contributed to improving the Prepack CLI and core functionality. They fixed a bug in `processSerializedCode` and added tests to verify the fix. Furthermore, the user refactored the code to re-order properties within option types to improve readability and added a missing property. They also addressed issues related to referentialization and made changes to clean up options.
codemodbundlejavascriptoptimizationoptimizer
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