Junegunn Choi
Apache HBase Committer at The Apache Software Foundation
South Korea
Summary
🤩
Rockstar🎓
Top School
Top expert inNeovim Ecosystem and Shell Customization
Junegunn Choi is a seasoned data infrastructure engineer and Apache HBase committer with 15+ years building large-scale distributed systems and databases. He led the design and implementation of Kakao’s in-house Hadoop deployment now running 100+ clusters and hundreds of petabytes—replacing a commercial product and saving millions monthly—while operating and tuning mission-critical HBase and Druid fleets. His background spans performance benchmarking of NoSQL systems, scalable ETL and load-testing frameworks, and contributing to open-source projects including widely used tools like fzf and vim-plug. Comfortable across Java, Ruby, and systems tooling, he combines hands-on optimization of core database code with practical automation for large production deployments. Based in South Korea with an MS from Seoul National University, he also maintains a strong streak of popular OSS projects that have grown sizable communities.
15 years of coding experience
17 years of employment as a software developer
Master of Science (MS) Electrical Engineering and Computer Science, Master of Science (MS) Electrical Engineering and Computer Science at Seoul National University
Korean, English
Stackoverflow
1,611reputation
64kreached
12answers
0questions
linux
top-5%
bash
top-5%
Github Skills (64)
git10
hbase10
fzf10
color-theory10
package-management10
redis10
scripting10
plugin-development10
testing10
vimscript10
databases10
ui-customization10
user-interface10
vim-plugin10
ui-design10
Programming languages (20)
Github contributions (5)
junegunn/limelight.vim
Jul 2014 - Aug 2022
:flashlight: All the world's indeed a stage and we are merely players
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 reviews, 29 commits, 8 PRs in 8 years 2 months
Contributions summary:Junegunn primarily focused on enhancing the functionality and maintainability of the `limelight.vim` plugin. Their contributions include fixing error messages, refactoring code, and moving code to the autoload directory. They implemented new features like customizable paragraph boundaries and added support for highlighting a visual range. Additionally, the user addressed compatibility issues with Neovim's true color and `termguicolors` features, and fixed an operator related to the `<Plug>(Limelight)` mapping.
minecraftplayersindeedflashlightstage
junegunn/fzf.vim
Nov 2016 - Jan 2023
fzf :heart: vim
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:67 reviews, 12 commits, 196 PRs in 6 years 2 months
Contributions summary:Junegunn contributed extensively to the fzf.vim plugin, primarily focusing on enhancing its features and usability. Their commits added new commands, such as "Files", "Snippets", "Commands", and "Marks", expanding the plugin's functionality. They also implemented enhancements to existing commands, such as "Tags" and "BLines", improving their user experience. The user was also involved in refactoring the code and handling edge cases.
fzfvimneovim
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