Xavier Perseguers
CEO & Founder at Causal Sàrl
Bern, Bern, Switzerland
Summary
👤
Senior🎓
Top SchoolXavier Perseguers is a seasoned CEO, founder and software engineer with 16+ years building web and enterprise solutions, specializing in TYPO3, PHP, C#, and database integrations. He founded and leads Causal Sàrl, delivering everything from corporate websites to large organization applications while maintaining hands-on expertise in server stacks (Debian, Apache, Nginx) and cross-platform UI with MAUI. A long-time TYPO3 core contributor and former release manager for TYPO3 4.6, he combines open-source stewardship with practical release coordination, documentation and security maintenance. His GitHub work includes substantive technical writing for the official TYPO3 documentation, improving developer clarity and fixing subtle code-example errors. Trained as an EPFL computer scientist, he pairs formal engineering grounding with entrepreneurial experience running hosting platforms and secure mail infrastructures.
16 years of coding experience
13 years of employment as a software developer
Baccalauréat C, Physics and Mathematics, Baccalauréat C, Physics and Mathematics at Collège Sainte-CroixMaster, Computer Sciences, ing. info. dipl. EPF, Master, Computer Sciences, ing. info. dipl. EPF at Ecole polytechnique fédérale de Lausanne
German, English
Stackoverflow
31reputation
3kreached
5answers
0questions
Github Skills (15)
ref10
rs10
refer10
restructuredtext10
typo310
typoscript10
documentation10
internationalization8
fluid6
pbkdf26
localization6
hash6
phpass6
extbase6
typo3-extension6
Programming languages (16)
Github contributions (5)
TYPO3-Documentation/TYPO3CMS-Reference-Typoscript
Jun 2013 - Oct 2016
The TypoScript Reference (TSref) is a true reference describing the core Content Objects and functions available for Template building using the TypoScript template engine.
Role in this project:
Technical Writer
Technical WriterContributions:18 commits, 3 PRs, 5 pushes in 3 years 5 months
Contributions summary:Xavier primarily focused on enhancing the TypoScript Reference documentation. Their contributions involved adding and updating cross-links within the documentation to improve navigation and clarity. They also corrected documentation errors, such as incorrect samples for layout root paths and outdated information related to X-UA-Compatible meta tags. Furthermore, they changed cross-references to internal references.
template-enginetypo3-cms-extensiontyposcriptreferencetypo3
TYPO3-Documentation/TYPO3CMS-Reference-CoreApi
Sep 2013 - Mar 2017
"TYPO3 Explained": Main TYPO3 Core Document: Main classes, Security, TypoScript syntax, Extension API and much more
Role in this project:Technical Writer
Technical WriterContributions:1 review, 30 commits, 3 PRs in 3 years 6 months
Contributions summary:Xavier primarily contributed to the repository by documenting and improving the existing TYPO3 Core API reference documentation. Their work included fixing typos, adjusting phrasing, and deprecating outdated documentation. They also added new sections on documenting extensions and custom constant categories, improving the overall clarity and structure of the documentation. Furthermore, they made corrections in code examples.
apiexplainedsecuritytyposcripttypo3-cms-extension
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