Maarten De Keizer
Owner Eigenaar at Markei.nl
Randstad, Netherlands
Summary
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SeniorMaarten De Keizer is an experienced software engineer and owner of Markei.nl with 14 years building high-traffic PHP/Symfony applications and running the operations that keep them reliable. He blends hands-on development with DevOps and systems work—managing hosting, continuity and deployment across Linux and Windows environments using tools like Docker, Nginx, Varnish and FPM. His backend expertise spans MySQL/Postgres, MongoDB, Redis and InfluxDB, and he routinely designs and integrates REST and SOAP services while using Git, Mercurial and Subversion for version control. Comfortable in multidisciplinary, agile teams, he emphasizes collaboration, user experience and pragmatic solutions for scalable sites. Known on GitHub as a developer-thinker-devopser, he pairs entrepreneurial ownership with day-to-day engineering craft. He often bridges gaps between teams and infrastructure, turning complex operational needs into maintainable delivery pipelines.
14 years of coding experience
Github Skills (113)
altium-designer10
relational10
bundle10
nette10
php-framework10
mapper10
symfony-bundle10
doctrine10
docx10
symfony10
twig10
templating10
twig-extension10
odt10
pdf10
Programming languages (8)
Github contributions (5)
Markei/FileSystemOperations
Oct 2016 - May 2022
Cross platform file system operations for composer scripts, for example to install WordPress via composer
Contributions:2 releases, 2 pushes, 1 branch in 5 years 7 months
wordpressphplinuxfilesystemcomposer
Amsterdam/makkelijkemarkt-api
Aug 2016 - Jun 2021
gemeenteamsterdam-makkelijkemarkt-api
Contributions:1 review, 5 PRs, 27 pushes in 4 years 10 months
api
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