Ryan Lyu
Founder at Mumu EdTech
Xuhui District, Shanghai, China
Summary
👤
Senior🎓
Top SchoolRyan Lyu is a founder and seasoned Ruby engineer with 11+ years building scalable web and HR systems, now applying his skills to edtech for children with dyslexia. He has led product and platform engineering at Workstream—designing event-driven microservices, core employee services, and integrations with payroll and background-check providers—while driving engineering efficiency through trunk-based development and feature toggles. An AWS Certified Solutions Architect and CKAD, Ryan blends cloud-native infrastructure, CI/CD and DevOps experience with hands-on Ruby on Rails development dating back to high‑traffic consumer services. Organizer of Shanghai’s Ruby Tuesday and lead organizer of the Ruby China community, he combines technical depth with grassroots community leadership. Trained originally in medicine, he brings a rare cross-disciplinary perspective to product design and user-centered solutions in healthcare and education.
11 years of coding experience
9 years of employment as a software developer
bachelor, Clinical Medicine, bachelor, Clinical Medicine at Weifang Medical CollegeMaster's degree, Geriatrics, Master's degree, Geriatrics at Shanghai Jiao Tong University
Chinese, English
Stackoverflow
4,575reputation
370kreached
28answers
58questions
amazon-web-services
top-5%
Github Skills (200)
postgresql10
google-authentication10
windows-phone10
react-google-login10
solidus10
distributed-transactions10
rack10
serverless10
cloud-native10
foundationdb10
oltp10
scale10
activitypub10
mastodon10
sql10
Programming languages (13)
Github contributions (5)
helloworld1812/beta_feature
Apr 2020 - Jan 2021
Rails feature toggle tool for trunk based development.
Contributions:1 review, 49 commits, 4 PRs in 8 months
ruby-on-railsfeature-toggletoggletrunk-based-developmentrails
helloworld1812/paylocity-ruby-gem
Jun 2021 - Dec 2022
Ruby wrapper for the API of Paylocity Web Service
Contributions:4 reviews, 17 commits, 4 PRs in 1 year 6 months
ruby-wrapperapipaymentsrubynetsuite
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