David Buchmann
Lead Developer at Liip AG
Wohlen bei Bern, Bern, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolDavid Buchmann is a Lead Developer with 17 years of experience architecting backend systems and a long-standing open source contributor centered on the Symfony ecosystem. Based in Wohlen bei Bern, Switzerland, he leads development at Liip AG while regularly speaking at conferences and teaching hands-on trainings on Symfony, Varnish and HTTP caching. His contributions span high-profile Symfony projects and tooling—NelmioApiDocBundle, Sonata bundles, the Serializer component and HTTPlug—where he focuses on API documentation, DI, routing and robustness improvements. Technically fluent in dependency injection, compiler passes and cache invalidation, he blends deep implementation work with documentation and tests to improve maintainability. Notably, he pairs practical engineering with academic rigour, holding a PhD in Computer Science and applying that background to both complex backend design and community-facing technical writing.
17 years of coding experience
Master's degree, Computer Science, Master's degree, Computer Science at Université de Fribourg/Universität FreiburgMatura, Mathematisch- Naturwissenschaftlich, Matura, Mathematisch- Naturwissenschaftlich at Kantonsschule St.Gallen
English, German, French
Stackoverflow
1,505reputation
67kreached
70answers
2questions
symfony
top-5%
Github Skills (75)
error-reporting10
url-routing10
jms-serializer10
testing10
http10
swagger10
templater10
guzzle10
phpunit10
mappings10
http-client10
symfony-ux10
lessc10
javascript10
react-components10
Programming languages (17)
Github contributions (5)
symfony-cmf/symfony-cmf
Mar 2011 - Sep 2021
Meta package tying together all the key packages of the Symfony CMF project.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:2 releases, 152 commits, 7 PRs in 10 years 8 months
Contributions summary:David contributed code examples and fixed typos related to the CMF project. They also imported and made use of several Symfony bundles to add different features like DoctrinePHPCRBundle, PhpcrCommandsBundle, ContentBundle, CoreBundle, NavigationBundle, and MultilangContentBundle. Additionally, they refactored the bundles to use the new DoctrinePHPCRBundle implementation and addressed naming convention inconsistencies. They are involved in both frontend and backend development of the project.
meta-packagebundlephpsymfony-bundlecmf
symfony-cmf/symfony-cmf-docs
Jul 2012 - Sep 2021
The documentation for the symfony content management framework
Role in this project:Technical Writer
Technical WriterContributions:3 reviews, 576 commits, 217 PRs in 9 years 3 months
Contributions summary:David primarily contributed to the project by addressing line ending issues and updating documentation for the CMF CreateBundle. Their work included fixing line endings in multiple files, enabling Sensio extension for configuration blocks, and updating documentation related to create bundle routes and image inclusion. The edits also featured content updates in various documentation files and the correction of several typos.
bundlephpsymfony-bundlesymfonycontent-management
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