Matijs Van Zuijlen
AI Engineer at docbldr
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top School
Top expert inRuby Development and Security Analysis
Matijs Van Zuijlen is an AI engineer and seasoned Ruby specialist with 19 years of professional experience building reliable backend systems, test suites, and developer tools. He champions quality code, TDD and agile practices, and has a long track record as a senior Ruby developer and CTO working from Amsterdam. An active open-source contributor, Matijs has helped harden prominent Ruby projects like Bundler, RuboCop, Pry and RubyGems—often focusing on cross-platform correctness, robust test coverage and subtle edge cases. He combines pragmatic maintenance work (refactoring, deprecation removal, compatibility fixes) with deeper fixes in dependency resolution and memory handling, making him as comfortable in QA and test automation as in core backend changes. Colleagues rely on him to improve developer experience and prevent regressions, a strength reflected across many high-profile repos.
19 years of coding experience
20 years of employment as a software developer
University of Amsterdam
English, Dutch, German, French
Stackoverflow
458reputation
36kreached
14answers
0questions
Github Skills (59)
test-automation10
dependency-management10
debugging10
rubocop10
ruby-rails10
compatible10
debug10
static-code-analysis10
pry10
package-management10
back-end-development10
testing10
rubygems10
associations10
cucumber10
Programming languages (27)
Github contributions (5)
publify/publify
Jul 2008 - Jan 2023
A self hosted Web publishing platform on Rails.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:16 releases, 2 reviews, 3457 commits in 14 years 8 months
Contributions summary:Matijs primarily focused on refactoring code within the Publify platform, as evidenced by numerous commits that autocorrected code style issues, removed deprecated features, and reorganized the codebase. They also addressed issues related to the database, improved the functionality of the search feature, and made code quality improvements. The user seems to be working on the core of the platform by modifying the code used for content management, comments, text filters, and other backend features.
ruby-on-railspublishingrailshostedblog-engine
ActsAsParanoid/acts_as_paranoid
Nov 2014 - Jan 2023
ActiveRecord plugin allowing you to hide and restore records without actually deleting them.
Role in this project:Back-end Developer
Back-end DeveloperContributions:9 reviews, 347 commits, 259 PRs in 8 years 3 months
Contributions summary:Matijs primarily contributed to the backend of the `acts_as_paranoid` gem, focusing on enhancing its core functionality. Their work involved modifying the ActiveRecord plugin, including updating validations, associations, and core functionality related to soft-deleting records. The user addressed issues with dependent associations, scopes, and ensured compatibility with different versions of Rails. They also worked on providing more granular methods for destroying records.
recordsrailsmongoidhideruby
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