Gui Vieira
Software Engineer at Shopify
Vancouver, British Columbia, Canada
Summary
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RockstarGui Vieira is a Software Engineer based in Vancouver with 11 years of experience building reliable back-end systems and improving developer tooling. As a staff-level contributor on GitHub, he has made practical enhancements to prominent Ruby/Rails testing libraries—most notably adding association testing support and stability fixes to thoughtbot’s shoulda-matchers. He blends hands-on development and QA sensibilities, routinely updating dependencies and pruning legacy code to keep projects maintainable. Comfortable working across legacy Rails codebases and modern engineering practices, he focuses on shipping pragmatic fixes that reduce flakiness and developer friction. Colleagues value his attention to detail and the way he surfaces non-obvious compatibility issues before they reach production.
11 years of coding experience
Stackoverflow
354reputation
18kreached
4answers
5questions
Github Skills (15)
testing10
activerecord10
rspec10
ruby-rails10
rails10
ruby10
http-header6
facebook6
html6
facebook-graph-api6
selenium-webdriver6
facebook-open-graph6
forms6
capybara6
ruby-on-rails6
Programming languages (5)
Github contributions (5)
thoughtbot/shoulda-matchers
Sep 2018 - Jun 2020
Simple one-liner tests for common Rails functionality
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:5 releases, 25 commits, 84 PRs in 1 year 9 months
Contributions summary:Gui primarily contributed to the Shoulda Matchers library by implementing new features related to association testing and fixing bugs. They added support for `optional: false` in `belongs_to` associations, enhancing the testing capabilities. Furthermore, the user updated the gem version and dependencies, ensuring the library's compatibility and adherence to best practices. They also removed code for unsupported versions and addressed intermittent test failures.
railstestingrubyone-linerrspec
guialbuk/shoulda-matchers
Jun 2016 - Oct 2019
Collection of testing matchers extracted from Shoulda
Contributions:118 pushes, 39 branches in 3 years 4 months
matcherstesting
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