Leo Feyer
Project Lead, Release Manager at Hostingwerk
Wuppertal, North Rhine-Westphalia, Germany
Summary
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RockstarLeo Feyer is a seasoned project lead and release manager with 17 years of hands-on experience steering the Contao open-source CMS from Wuppertal, Germany. He blends day-to-day Linux system administration and full-stack development at Hostingwerk with leadership of Contao’s releases, shipping stability, deprecation strategies, and security fixes for a widely used PHP CMS. His backend focus includes PHP 7.1 compatibility, XSS remediation, database and encoding robustness, and pragmatic API changes that keep legacy users supported while moving the project forward. A habitual night coder and collaborative maintainer, he’s known for quietly improving core internals and data container behaviors that few end users notice but many developers rely on.
18 years of coding experience
English, German
Github Skills (8)
php10
contao10
back-end-development10
symfony10
symfony-ux10
database-management9
phpunit8
security8
Programming languages (15)
Github contributions (5)
contao/contao
Aug 2008 - Jan 2023
Contao Open Source CMS
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4349 reviews, 20552 commits, 6574 PRs in 14 years 8 months
Contributions summary:Leo's contributions primarily focused on enhancing the Contao CMS backend functionality and addressing specific code-related issues. They implemented a fix to return an empty string when no driver is available, and allowed DCAs (Data Container) to function without a driver. They also refactored the code to implement deprecation warnings to improve code quality. The changes involved modification of the core-bundle files.
cmscontaophpsymfonymonorepo
contao/core
Aug 2008 - Oct 2019
Contao 3 → see contao/contao for Contao 4
Role in this project:Back-end Developer
Back-end DeveloperContributions:55 releases, 6118 commits, 278 PRs in 11 years 3 months
Contributions summary:Leo primarily focused on back-end development tasks within the Contao CMS repository. They contributed to the core library, addressing issues related to encoding, and database handling with PHP. Their work involved implementing new methods for date formatting and adjusting existing code to be compatible with PHP 7.1. Furthermore, they fixed XSS vulnerabilities and improved the overall stability and functionality of the system.
contaocmsphp
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