Petra Dreiskämper
Owner at Grobbel & Dreis
Utrecht, Utrecht, Netherlands
Summary
👤
Senior🎓
Top SchoolPetra Dreiskämper is an independent PHP developer and entrepreneur with over two decades building user-friendly web applications and custom software for cultural heritage institutions. A former historian who retrained in historical informatics, she combines domain knowledge with hands-on coding, system architecture and a dedication to clean, efficient code. Founder of Grobbel & Dreis and creator of the crowdsourcing platform VeleHanden.nl while at Picturae, she has led teams, designed webservices and shipped products for archives, museums and other cultural organisations. Based in Utrecht, Petra balances freelance company ownership with collaborative roles like membership in the Dutch Web Alliance and a stint driving digital accessibility at Stadsarchief Amsterdam, reflecting a rare blend of scholarly roots and practical software craftsmanship.
12 years of coding experience
6 years of employment as a software developer
Historische Informatieverwerking, Historische Informatieverwerking at Leiden UniversityMaster's degree, Studie Geschiedenis, Master's degree, Studie Geschiedenis at Utrecht University
English, German
Github Skills (82)
authentication10
backend10
oauth-client10
bolt10
api10
admin10
twig10
codeception10
generator10
php10
silex10
oauth10
bundle9
bdd9
easyadmin9
Programming languages (5)
Github contributions (5)
Stadsarchief-Amsterdam/blauwdruk
Oct 2021 - Jan 2023
Contributions:23 reviews, 281 commits, 43 PRs in 1 year 3 months
phpetra/oai-pmh-tools
Feb 2014 - Feb 2014
Contributions:22 commits in 18 days
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