Jörn Wagner
CTO at Explicatis GmbH
Cologne Bonn Region Germany
Summary
👤
Senior🎓
Top SchoolJörn Wagner is a seasoned technology leader and CTO based in the Cologne-Bonn region with 14 years of experience building fast, reliable web applications using PHP/Symfony and Java. He combines hands-on engineering with strategic leadership, currently steering technical direction at Explicatis GmbH. Trained as a Diplom-Wirtschaftsinformatiker from the University of Cologne, he excels at turning complex business requirements into maintainable, high-performance systems. Colleagues know him for pragmatic architecture choices and a focus on operational reliability rather than flashy trends. Though not prolific on GitHub, his deep domain expertise shows in production-grade delivery and long-term platform stewardship. He brings a blend of enterprise discipline and developer empathy to scale teams and systems effectively.
14 years of coding experience
Diplom, Wirtschaftsinformatik, Diplom, Wirtschaftsinformatik at University of Cologne
English
Github Skills (198)
phpunit10
apollo10
symfony-cli10
composer10
sulu10
bundle10
nette10
php-framework10
typo310
unit-testing-framework10
ongr10
dependency-manager10
continuous-deployment10
monolog10
symfony-bundle10
Programming languages (10)
Github contributions (5)
YetiCGN/sulu
Apr 2017 - Mar 2023
Sulu core bundles & components
Contributions:6 pushes, 20 branches in 6 years
suluphpbundles
vineyardkoeln/churchtools-api
Feb 2018 - Mar 2021
Access the API for ChurchTools at https://api.churchtools.de/ in an object-oriented way that integrates nicely with modern PHP projects via Composer.
Contributions:7 releases, 19 commits, 5 PRs in 3 years 1 month
apichurchtools-apiphpmodern-phpphp7
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