Mateus Guimarães
Senior Software Engineer at Laravel
São Paulo, Brazil
Summary
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SeniorMateus Guimarães is a Senior Software Engineer with 11 years of experience specializing in full-stack development, automated testing, and the Laravel ecosystem, now working at Laravel in São Paulo. He has a strong track record scaling systems for startups—most notably pushing a Laravel app to handle over 300M jobs and peaks of 30,000 requests/minute—and improving performance and developer workflows at ENTRE by slashing repo size and compute costs. An active open-source contributor to the Laravel framework and its illuminate/support components, he focuses on testability and reliability, adding testing primitives and improving mail/queue test infrastructure. Mateus is also a teacher and content creator: he publishes articles, screencasts, a free 30 Days of Laravel course and a paid TDD with Laravel course, reflecting his emphasis on test-driven development and software architecture. He maintains Magic Test, a library that makes E2E testing more interactive with Laravel Dusk, and contributes to the framework itself, blending practical engineering with community impact. Colleagues describe him as a pragmatic engineer who pairs deep platform knowledge with a knack for making complex legacy systems easier to test and evolve.
11 years of coding experience
9 years of employment as a software developer
Portuguese, English, Spanish
Stackoverflow
176reputation
1kreached
5answers
7questions
Github Skills (18)
unit-testing10
laravel-mix10
testing10
laravel10
queuing10
php10
queue10
mailing9
e-mail9
web-framework8
html6
google-maps6
css6
jquery6
analytics6
Programming languages (7)
Github contributions (5)
laravel/framework
Oct 2016 - Oct 2022
The Laravel Framework.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:12 reviews, 45 commits, 54 PRs in 6 years 1 month
Contributions summary:Mateus primarily contributed to the Laravel framework, focusing on improving existing functionalities and adding new features. Their work included removing redundant code, refining exception handling, and adding methods to existing collections. The user also implemented testing infrastructure for the framework, specifically in relation to mailing and queueing. These changes indicate a focus on code quality, maintainability, and feature enhancement.
laravel-frameworklaravelphpframework
illuminate/support
May 2017 - Aug 2017
[READ ONLY] Subtree split of the Illuminate Support component (see laravel/framework)
Role in this project:Back-end Developer
Back-end DeveloperContributions:40 commits in 3 months
Contributions summary:Mateus primarily contributed to the testing framework within the Illuminate Support component. Their work involved implementing and extending testing functionalities, including the addition of methods to the `MailFake` and `QueueFake` classes, such as `assertQueuedTimes` and `assertNothingQueued`. They also addressed namespace issues and refactored the code to align with best practices. These changes indicate a focus on improving the testability and reliability of mail and queue operations.
splitilluminatelaravel-frameworkphpsubtree-split
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