Jonathan Liss
Principal Web Developer - Development Lead at Advance Auto Parts
Fort Collins, Colorado, United States
Summary
👤
Senior🎓
Top SchoolJonathan Liss is a Principal Web Developer and development lead with a decade of hands-on experience building and guiding web applications from Fort Collins, Colorado. He combines deep Ruby/Rails expertise with practical leadership at Advance Auto Parts, progressing from software developer to principal in under four years. An active contributor to the RubyGems ecosystem, he has improved authentication, error handling, and security-sensitive code in a widely used packaging project, demonstrating attention to robust, production-safe tooling. Jonathan trained at the Turing School and holds a CS background from Wheaton College, and is known for pragmatic fixes—like implementing deep cloning to prevent credential leaks—that reveal a careful, security-minded approach to everyday engineering.
10 years of coding experience
2 years of employment as a software developer
Certificate in Web Application Development with Ruby, Rails and JavaScript, Certificate in Web Application Development with Ruby, Rails and JavaScript at Turing School of Software & DesignComputer Science, Computer Science at Wheaton College Massachusetts
English
Github Skills (9)
authentication10
error-handling10
user-authentication10
bundler10
ruby10
testing9
package-manager9
package-manager-tool9
rubygems8
Programming languages (3)
Github contributions (5)
ruby/rubygems
Jan 2019 - Sep 2021
Library packaging and distribution for Ruby.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 2 PRs, 7 comments in 2 years 8 months
Contributions summary:Jonathan primarily contributed to improving the error handling and authentication mechanisms within the RubyGems ecosystem. Their work involved addressing authentication failures in the Bundler component, modifying the code to raise specific error types based on the response, and implementing security best practices by redacting sensitive information. They fixed rubocop offenses, removed an unneeded variable in spec, and implemented deep cloning for the `Gem::Uri` class to fix a bug where redacting credentials modified the URI string in place instead of returning a modified copy.
rubyrubygemspackage-manager
jdliss/project_basketball
Oct 2023 - Jan 2026
Contributions:1 PR, 9 pushes, 2 branches in 2 years 4 months
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