Stefano Kowalke
Nachlasspfleger at Arroba IT
Flensburg, Schleswig-Holstein, Germany
Summary
🤩
Rockstar🎓
Top SchoolStefano Kowalke is a freelance backend developer with 15+ years of experience specializing in PHP, JavaScript and Ruby, and deep fluency in TYPO3, Laravel and Statamic. He combines hands-on engineering—contributing bug fixes and core enhancements to notable open-source projects like TYPO3 core and Statamic—with practical knowledge of Event Sourcing, CQRS and GDPR-driven requirements. Comfortable with backend-first “half stack” work, he also ships front-end improvements using JavaScript and VueJS and created the Antlers Language plugin for PhpStorm/IntelliJ. His background includes migration and Solr integration work for enterprise TYPO3 deployments at Swisscom, and he brings a developer-friendly focus on tooling and internationalization. Based in Flensburg, Germany, he’s a coffee-loving pragmatic problem solver who prefers freelance engagements over permanent employment.
15 years of coding experience
1 year of employment as a software developer
NLP Practitioner, NLP Practitioner at NLP-Zentrum BerlinBachelor, PSYCHOLOGY, Bachelor, PSYCHOLOGY at FernUniversität in HagenGeselle, Bauklempner, Geselle, Bauklempner at Klempnerei Axel FesteBachelor of Science (B.Sc.), Angewandte Informatik - Medieninformatik, Bachelor of Science (B.Sc.), Angewandte Informatik - Medieninformatik at Fachhochschule Flensburg
English, Spanish
Stackoverflow
3,849reputation
310kreached
147answers
5questions
php
top-5%
laravel
top-5%
Github Skills (42)
content-management-system10
cms10
debug10
laravel-mix10
testing10
command-line-interface10
laravel10
compose10
phpunit10
automation10
php10
content-management10
typo310
package10
symfony10
Programming languages (21)
Github contributions (5)
TYPO3/typo3
Mar 2011 - Jul 2014
The TYPO3 Core - Enterprise Content Management System. Synchronized mirror of https://review.typo3.org/q/project:Packages/TYPO3.CMS
Role in this project:
Back-end Developer
Back-end DeveloperContributions:43 commits, 1 PR in 3 years 5 months
Contributions summary:Stefano contributed to the TYPO3 Core, focusing on code cleanup, bug fixes, and implementing enhancements. Their work involved fixing typos, removing trailing newlines, and addressing code style issues. The user's commits also included making backend layout dropdowns translatable and removing whitespace between variable names and brackets.
cmsmanagement-systemphpsynchronizedtypo3-cms
statamic/cms
Jun 2020 - Jul 2022
The core Laravel CMS Composer package
Role in this project:Back-end Developer
Back-end DeveloperContributions:3 reviews, 30 commits, 34 PRs in 2 years 1 month
Contributions summary:Stefano primarily contributed to the core functionality of the Statamic CMS, focusing on command-line interface (CLI) enhancements and feature additions. They added new commands for field type and action creation, improving the developer experience. The user also worked on improving the German language translations and fixed issues, which indicates involvement in the internationalization aspects of the project. Additionally, the user modified core components to include features like site variables as arrays.
cmsssgprestashop-modulelaravel10composer
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