Kidon Chu
Staff Software Engineer at Block
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolKidon Chu is a Staff Software Engineer in San Francisco with 12 years of experience building high-throughput, reliable systems across Kotlin, Go, Ruby on Rails, React, EmberJS and more. At Block he architects and operates a notifications platform that sends 100M+ daily messages to 25M+ Cash App users, tackling 10k+ QPS challenges and improving deployments from 4+ hours to 30 minutes. He blends hands-on engineering with technical leadership—mentoring engineers, leading migrations (SignalFX to Datadog), and defining SLIs/SLOs to adopt SRE practices. Earlier roles at ActiveCampaign and Gorilla Group show deep full‑stack and e‑commerce experience, from API design to performance tuning and developer tooling. A prolific problem-solver, he routinely optimizes distributed systems (Kafka, SQS), builds developer products like Sandboxes and Marketplaces, and shares knowledge through tech talks. Outside daily operations he’s an avid learner and active GitHub maintainer, with 10+ years’ worth of public repos demonstrating practical, production-focused solutions.
12 years of coding experience
8 years of employment as a software developer
Bachelor of Science (B.S.), Computer Engineering, Bachelor of Science (B.S.), Computer Engineering at University of Wisconsin-Madison
English, Korean
Stackoverflow
785reputation
61kreached
12answers
14questions
Github Skills (68)
image-editor10
filter10
photoshop10
drawing9
paint9
vimscript9
photo9
statusline9
vim9
image9
vim-airline9
neovim9
tabline9
vim-plugin8
taskwarrior8
Programming languages (8)
Github contributions (5)
kidonchu/circleci-test
May 2018 - Dec 2020
Contributions:3 PRs, 3 pushes, 1 branch in 2 years 7 months
kidonchu/gitcli
Apr 2017 - Jun 2021
Contributions:12 pushes, 1 branch in 4 years 2 months
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