Kelvin Liu
Lead Software Engineer at Buildout
Chicago, Illinois, United States
Summary
👤
Senior🎓
Top SchoolKelvin Liu is a Lead Software Engineer based in Chicago with over a decade of experience building resilient backend systems, primarily in Ruby and Rails since the early 2000s. He blends hands-on engineering with testing and automation expertise, contributing fixes and feature work to the widely used graphql-ruby project to improve enums, input objects, and field properties. Kelvin has progressed from long-term solution architecture at Tribune Publishing to senior and lead engineering roles at HealthClix and Buildout, where he focuses on delivering maintainable, production-ready services. Known for strong testing discipline and deep Ruby knowledge, he often surfaces subtle edge cases in type handling and input validation that improve library robustness. His Computer Science degree from UIUC underpins a pragmatic approach to system design and long-term operational reliability.
11 years of coding experience
23 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at University of Illinois Urbana-Champaign
Github Skills (10)
testing10
enumerated-types10
graphql10
graphql-ruby10
wordpress-graphql10
wpgraphql10
enums10
ruby10
ruby-rails9
rails9
Programming languages (7)
Github contributions (5)
rmosolgo/graphql-ruby
Oct 2015 - Apr 2016
Ruby implementation of GraphQL
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:6 commits, 4 PRs, 16 comments in 5 months
Contributions summary:Kelvin contributed to the `graphql-ruby` project by fixing bugs and adding features to the core library. Their work included improving enum type definitions, refining input object handling, and exposing properties in fields. They also wrote tests for various components, including enums, input objects, and fields, ensuring the robustness and functionality of the GraphQL implementation.
graphqlrubyrelayrailsgraphql-ruby
tribune/commonjs-mini_racer_env
Dec 2018 - Aug 2024
Common JS for Ruby
Contributions:10 pushes, 1 tag in 5 years 9 months
commonjsruby
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