Paulo Margarido
Staff Software Engineer at Shopify
Canada
Summary
🤩
Rockstar🎓
Top SchoolPaulo Margarido is a Staff Software Engineer based in Canada with over a decade of commercial software experience and a strong focus on web development and system architecture. He combines hands-on full-stack work with product-minded planning, improving usability and reliability across backend services, CLIs, and app templates. At Shopify he has driven core contributions to widely used open-source libraries and tools—adding session/auth improvements, CI and testing enhancements, and feature flags for the Shopify CLI—demonstrating an emphasis on robust authentication, testing, and maintainability. Formerly a team lead and founder-level partner, he brings both leadership and entrepreneurial instincts to engineering problems. Known for upgrading legacy stacks to modern versions (including Rails 7 compatibility) and pragmatic tooling choices, he blends long-term architectural thinking with attention to developer experience.
6 years of coding experience
12 years of employment as a software developer
Bachelor, Computer Science, Bachelor, Computer Science at USP - Universidade de São Paulo
English, Portuguese, Spanish, French
Stackoverflow
41reputation
20kreached
3answers
0questions
Github Skills (38)
javascript10
shopify-api10
expressjs10
python10
apidoc10
shopify10
oclif10
webhooks10
testing10
user-authentication10
authentication10
typescript10
rails10
phpunit10
ruby10
Programming languages (7)
Github contributions (5)
Shopify/shopify-api-php
Mar 2021 - Jan 2023
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 releases, 25 reviews, 159 commits in 1 year 10 months
Contributions summary:Paulo's primary contribution involved setting up continuous integration and dummy testing functionalities. They introduced a new class `Temp` and associated tests within `src` and `tests` directories. Further development included adding an HTTP client, implying work related to making external API requests. The user also integrated a retry feature for HTTP requests, suggesting an effort towards improving the robustness of the API client.
Shopify/shopify-api-ruby
Jun 2020 - Jan 2023
ShopifyAPI is a lightweight gem for accessing the Shopify admin REST and GraphQL web services.
Role in this project:Back-end Developer
Back-end DeveloperContributions:105 reviews, 129 commits, 68 PRs in 2 years 7 months
Contributions summary:Paulo's contributions primarily focused on modifying the `ShopifyAPI::Session` class, including defaulting to a base API version and allowing API version overrides. They adjusted the `temp` method to align with the new defaults. They also made modifications related to basic auth values in the `temp` sessions. Additionally, the user cleaned up base user and password handling.
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