# TYPO3 CMS

TYPO3 is one of the most advanced PHP-based open-source content management systems on the market. This software has a long success history, is written in PHP, and a key player in particular in the European market.

I'm officially TYPO3 certified:

[TYPO3 CMS Certified Integrator](https://typo3.com/services/certifications/certified-integrator-listing "Verify certificate")

[TYPO3 CMS Certified Developer](https://typo3.com/services/certifications/certified-developer-listing "Verify certificate")

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As an advocate of open-source software, I am a well-known member of the TYPO3 community. I have contributed to the success of TYPO3 by submitting software changes to the codebase, supporting several teams including the release coordination team, marketing/communication team, and education/certification team, and much more.

**TYPO3 extensions**  
[Read more](/content/typo3/extensions/ "TYPO3 Extensions"/index.html)

**Books and eBooks**  
[Read more](/content/typo3/publications/ "TYPO3 Books/eBooks"/index.html)

**Articles and Papers**  
[Articles and Papers about TYPO3](/content/typo3/articles/ "Articles and Papers about TYPO3"/index.html)  
[Read more](/content/typo3/articles/ "Articles and Papers about TYPO3"/index.html)

**TYPO3-on-AWS**  
[Go to t3rrific.com](https://t3rrific.com/typo3-on-aws/ "TYPO3-on-AWS on t3rrific.com")