Alexander Kellner
Geschäftsführung, COO at in2code GmbH
Rosenheim, Bavaria, Germany
Summary
👤
Senior🎓
Top SchoolAlexander Kellner is a seasoned TYPO3 expert and co-founder serving as COO of in2code, bringing over a decade of leadership in operations, marketing, and client training. He combines hands-on back-end development—notably contributions and bug fixes to the widely used powermail TYPO3 extension—with strategic oversight of complex projects. Based in Rosenheim, Bavaria, he leverages official TYPO3 certifications (Integrator, Developer, Consultant) to advise teams and present at community events and usergroups. Alexander’s background in electrical engineering underpins a methodical, systems-minded approach to web platform challenges. Beyond work he’s known for a passion for kicker and the mountains, reflecting a competitive and outdoors-oriented mindset that complements his professional drive.
13 years of coding experience
Elektrotechnik, Elektrotechnik at Technische Hochschule Nürnberg Georg Simon Ohm
Stackoverflow
1,271reputation
50kreached
78answers
4questions
Github Skills (10)
php10
typo310
html8
typoscript6
fluid6
powermail6
backend6
extbase6
typo3-extension6
css5
Programming languages (4)
Github contributions (5)
in2code-de/powermail
Jun 2013 - Jan 2023
This is the official repository of the TYPO3 extension powermail! Powermail is a well-known, editor-friendly, powerful and easy mailform extension for TYPO3
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 2865 commits, 176 PRs in 9 years 8 months
Contributions summary:Alexander primarily contributed to bug fixes within the powermail TYPO3 extension, focusing on addressing issues related to output formatting and the handling of data in HTML templates. Their commits involved correcting errors in the display of content elements, fixing incorrect rendering of text areas, and resolving issues with exporting data. They also made updates in various utility classes, viewhelpers, and partials, suggesting a strong understanding of the extension's architecture and the TYPO3 framework.
mail-formpowermailtypo3typo3-extensiontypo3-cms-extension
in2code-de/powermail_cond
Jan 2014 - Jul 2022
Add conditions (via AJAX) to TYPO3 powermail forms for fields and pages
Contributions:250 commits, 21 PRs, 100 pushes in 8 years 6 months
ajaxpowermailtypo3typo3-cms-extensionconditions
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