Manuel Puyol is a Staff Software Engineer based in Los Angeles with a decade of experience building full-stack web applications, infrastructure, and developer tooling. He progressed through multiple engineering roles at GitHub—now as staff—bringing deep expertise in front-end UI work and robust back-end integrations, and contributes to high-profile open-source projects like Hotwire's turbo and Primer view components. Manuel has a solid Ruby/Rails background, proven by contributions to tools like erb_lint, licensed, and view_component, where he improved testing, error handling, and CI-friendly output formats. He pairs practical UI craftsmanship (CSS loading, component refactors, navigation enhancements) with pragmatic backend fixes (npm license parsing, JSON reporters), making him effective across the stack. A University of Chicago master's graduate in CS with roots in Brazil's engineering education, he blends formal training with hands-on open-source impact and a knack for improving developer experience.
10 years of coding experience
6 years of employment as a software developer
Bachelor's degree Computer Engineering, Bachelor's degree Computer Engineering at Escola Politécnica da USP
Master's degree Computer Science, Master's degree Computer Science at University of Chicago
Contributions:42 releases, 550 reviews, 1531 commits in 2 years 4 months
Contributions summary:Manuel's commits focus on front-end development tasks within the Primer view components repository. They implemented new components, updated existing ones, and refactored existing code to improve functionality and maintainability, particularly for the TabNav and the Button components. The user made changes to the documentation and added new components with supporting infrastructure, such as stories. Their work demonstrates a clear focus on the UI and UX of the project by updating examples to better showcase component features.
A framework for building reusable, testable & encapsulated view components in Ruby on Rails.
Role in this project:
Back-end Developer & Test Automation Engineer
Contributions:7 releases, 37 reviews, 107 commits in 9 months
Contributions summary:Manuel primarily focused on enhancing the `viewcomponent/view_component` repository by implementing and validating component argument handling and testing. Their contributions include adding a component with invalid parameters and adding tests to ensure proper parameter validation. Furthermore, they made improvements to the codebase, updating variable naming and ensuring the correct error messages. Their work demonstrates a strong understanding of component design and testing within the Rails framework.
ruby-on-railsrailsrubyview-componentstestable
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